0001213900-26-059148 | 10-Q/A | XBRL Viewer

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Borrowings and Derivative Liabilities (Details) - USD ($)				1 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 21, 2025	Jul. 10, 2025	Sep. 16, 2024	Dec. 28, 2025	Sep. 30, 2024	Jul. 31, 2024	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Dec. 31, 2024	Dec. 19, 2025	Sep. 24, 2025	Jul. 31, 2025	Apr. 30, 2025	Mar. 31, 2025	Dec. 29, 2024	Jul. 01, 2024
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					$ 66,800,000
Cash proceeds						$ 28,000,000
Unsecured convertible notes
Derivative liability					$ 91,500,000
Debt discount						17,500,000
Fair value warrants									$ 3,122,000	$ 2,116,000
Gain on troubled debt								$ 19,800,000		19,800,000	$ 22,300,000
File interest						18,000,000
Accrue interest rate														12.00%
Shares of common stock (in Shares)							88,714,258		88,714,258								73,784,645
Principal amount													$ 20,000,000
Rate of senior unsecured convertible notes			7.00%
Rate of senior notes issued			7.00%
Bear interest			7.00%										7.00%
Rate of senior notes convertible into shares			7.00%
Rate of holders senior notes			7.00%
Rate of senior notes due payable			7.00%
Rate of senior notes					7.00%
Debt discount	$ 2,200,000					900,000
Debt issuance cost	1,400,000
Net Proceeds	$ 19,600,000
Percentage of acquisition membership interest													100.00%
Interest expense recognized							$ 100,000
Common stock, par value (in Dollars per share)							$ 0.0001		$ 0.0001								$ 0.0001
Indebtedness amount							$ 37,200,000		$ 37,200,000
Revolving loan balance							11,700,000		11,700,000
Revolving loan balance									3,900,000
Secured credit facility balance									13,100,000
Additional gain											$ 2,500,000
Interest payable							$ 1,300,000		$ 1,300,000								$ 2,200,000
Annual interest rate							4.50%		4.50%
Revolving loan amount						3,500,000
12.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued						46,000,000
Cash proceeds						28,000,000
Unsecured convertible notes						18,000,000
Notes issued						$ 10,000,000
Effective interest rate						12.00%
Maturity date						Jul. 01, 2029
Interest rate						3.00%
Conversion price, per share (in Dollars per share)						$ 595.2381
Conversion rate applicable per principal amount						$ 1,000
Debt discount						900,000
Fair value warrants						1,400,000
Gain on troubled debt						500,000
Interest expense							$ 800,000		$ 2,500,000
Debt discount and issuance costs							400,000
July 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued						18,000,000
Unsecured convertible notes						$ 11,200,000
Effective interest rate						45.00%						0.50%
Interest rate				0.50%											0.50%
Derivative liability														$ 3,700,000
Effective interest rate				$ 18,000,000
Interest expense							1,200,000	1,700,000	3,600,000	1,700,000
Debt discount and issuance costs								800,000	1,100,000	500,000
July 2025 Note – related party [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest rate														12.00%
Interest expense							200,000		200,000
Debt discount and issuance costs							100,000		100,000
Principal amount														$ 1,000,000
July 2025 Note [Member]
Borrowings and Derivative Liabilities [Line Items]
Effective interest rate														62.80%
7.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					$ 66,800,000
Debt discount					66,800,000
Interest expense							5,100,000		15,100,000	500,000
Financing loss					24,700,000
September 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					$ 13,000,000											$ 200,000
Effective interest rate					64.00%
Debt discount					$ 10,900,000
Interest expense							1,400,000	500,000	4,200,000	400,000
Debt discount and issuance costs							3,700,000	100,000	10,900,000	100,000
Rate of senior notes	7.00%
Interest payable								3,900,000		3,900,000
September 2025 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Effective interest rate	67.00%
Derivative liability	$ 15,400,000
Interest expense							100,000		100,000
Debt discount and issuance costs							100,000		100,000
Debt in CS Solis [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest payable								0		0
Revolving Loan [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense recognized							$ 100,000	100,000	$ 200,000	400,000
Secured Credit Facility [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense recognized								0		1,000,000
Revolving Credit Facility [Member]
Borrowings and Derivative Liabilities [Line Items]
Annual interest rate							7.75%		7.75%
Revocable Living Trust [Member]
Borrowings and Derivative Liabilities [Line Items]
Revolving loan outstanding							$ 1,500,000		$ 1,500,000
Related Party [Member] \| 12.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense							500,000
Debt discount and issuance costs							300,000
Related Party [Member] \| July 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense									1,600,000	900,000
Debt discount and issuance costs								500,000	700,000
Related Party [Member] \| 7.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					4,000,000
Related Party [Member] \| Massey Charitable Trust [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					4,000,000
Related Party [Member] \| September 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued					$ 750,000
Interest expense							200,000		500,000
Debt discount and issuance costs							500,000		1,400,000
Related Party [Member] \| Revolving Loan [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense recognized							$ 100,000		$ 100,000
Rodgers Revocable Trust [Member]
Borrowings and Derivative Liabilities [Line Items]
Note received		$ 5,000,000
Enphase Energy, Inc., [Member] \| September 2025 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Senior notes issued	$ 22,000,000
Carlyle [Member] \| July 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Principal amount																		$ 10,000,000
Kline Hill [Member] \| July 2024 Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Principal amount																		$ 8,000,000
2018 Bridge Notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Interest expense recognized								$ 0		$ 700,000
Derivative liability [Member] \| 12.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Derivative liability						$ 28,700,000
Common Stock [Member] \| July 2025 Note – related party [Member]
Borrowings and Derivative Liabilities [Line Items]
Shares of common stock (in Shares)														558.6592
Common Stock [Member] \| 7.0% senior unsecured convertible notes [Member]
Borrowings and Derivative Liabilities [Line Items]
Conversion price, per share (in Dollars per share)			$ 2.14
Common Stock [Member] \| Kline Hill [Member]
Borrowings and Derivative Liabilities [Line Items]
Shares of common stock (in Shares)																		1,500,000
Common stock, par value (in Dollars per share)																		$ 0.0001

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements - Schedule of Restated Unaudited Condensed Consolidated Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 28, 2025	Sep. 28, 2025
As Previously Reported [Member]
Cash flows from operating activities
Net loss	$ (16,904)	$ (31,199)
Net loss from discontinued operations, net of income taxes		(1,100)
Net loss from continuing operations		(30,099)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Stock-based compensation		8,205
Non-cash lease expense		826
Depreciation and amortization		4,293
Provision for credit losses		4,159
Change in fair value of SAFE Agreements with related party		113
Change in fair value of forward purchase agreement liabilities		807
Change in fair value of derivative liabilities		(1,639)
Change in fair value of warrant liabilities		3,122
Amortization of debt issuance costs		14,259
Non-cash income		(474)
Loss on impairments and disposals		140
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable		(32,747)
Inventories		34,098
Prepaid expenses and other current assets		(12,462)
Other noncurrent assets		95
Accounts payable		11,692
Accrued expenses and other liabilities		(6,360)
Operating lease liabilities		(866)
Contract liabilities		(10,568)
Net cash used in operating activities		(13,406)
Cash flows from investing activities
Cash paid for acquisitions, net of cash acquired		(20,689)
Net cash used in investing activities		(20,689)
Cash flows from financing activities
Proceeds from issuance of convertible notes		20,000
Proceeds from issuance of convertible notes due to related parties		5,000
Payment of debt issuance costs		(200)
Finance lease payments		(1,528)
Proceeds from issuance of common stock		1,682
Proceeds from exercise of common stock options		775
Proceeds from exercise of warrant for common stock		60
Proceeds from investor financing deposit from a related party
Principal repayment of notes payable
Net cash provided by financing activities		25,789
Effect of exchange rate changes
Net decrease in cash, cash equivalents and restricted cash		(8,306)
Cash, cash equivalents, and restricted cash at beginning of period		17,219
Cash, cash equivalents, and restricted cash at end of period	8,913	8,913
Restatement Adjustments [Member]
Cash flows from operating activities
Net loss	3,214	(5,016)
Net loss from discontinued operations, net of income taxes
Net loss from continuing operations		(5,016)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Stock-based compensation		(329)
Non-cash lease expense
Depreciation and amortization
Provision for credit losses
Change in fair value of SAFE Agreements with related party
Change in fair value of forward purchase agreement liabilities
Change in fair value of derivative liabilities
Change in fair value of warrant liabilities
Amortization of debt issuance costs		(2,431)
Non-cash income
Loss on impairments and disposals
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable		7,706
Inventories		1,244
Prepaid expenses and other current assets		1,090
Other noncurrent assets
Accounts payable
Accrued expenses and other liabilities		(5,171)
Operating lease liabilities
Contract liabilities		4,184
Net cash used in operating activities		157
Cash flows from investing activities
Cash paid for acquisitions, net of cash acquired
Net cash used in investing activities
Cash flows from financing activities
Proceeds from issuance of convertible notes
Proceeds from issuance of convertible notes due to related parties
Payment of debt issuance costs
Finance lease payments
Proceeds from issuance of common stock
Proceeds from exercise of common stock options
Proceeds from exercise of warrant for common stock
Proceeds from investor financing deposit from a related party		2,000
Principal repayment of notes payable		(2,157)
Net cash provided by financing activities		(157)
Effect of exchange rate changes
Net decrease in cash, cash equivalents and restricted cash
Cash, cash equivalents, and restricted cash at beginning of period
Cash, cash equivalents, and restricted cash at end of period
As Restated [Member]
Cash flows from operating activities
Net loss	(13,690)	(36,215)
Net loss from discontinued operations, net of income taxes		(1,100)
Net loss from continuing operations		(35,115)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Stock-based compensation		7,876
Non-cash lease expense		826
Depreciation and amortization		4,293
Provision for credit losses		4,159
Change in fair value of SAFE Agreements with related party		113
Change in fair value of forward purchase agreement liabilities		807
Change in fair value of derivative liabilities		(1,639)
Change in fair value of warrant liabilities		3,122
Amortization of debt issuance costs		11,828
Non-cash income		(474)
Loss on impairments and disposals		140
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable		(25,041)
Inventories		34,222
Prepaid expenses and other current assets		(11,372)
Other noncurrent assets		95
Accounts payable		11,692
Accrued expenses and other liabilities		(11,531)
Operating lease liabilities		(866)
Contract liabilities		(6,384)
Net cash used in operating activities		(13,249)
Cash flows from investing activities
Cash paid for acquisitions, net of cash acquired		(20,689)
Net cash used in investing activities		(20,689)
Cash flows from financing activities
Proceeds from issuance of convertible notes		20,000
Proceeds from issuance of convertible notes due to related parties		5,000
Payment of debt issuance costs		(200)
Finance lease payments		(1,528)
Proceeds from issuance of common stock		1,682
Proceeds from exercise of common stock options		775
Proceeds from exercise of warrant for common stock		60
Proceeds from investor financing deposit from a related party		2,000
Principal repayment of notes payable		(2,157)
Net cash provided by financing activities		25,632
Effect of exchange rate changes
Net decrease in cash, cash equivalents and restricted cash		(8,306)
Cash, cash equivalents, and restricted cash at beginning of period		17,219
Cash, cash equivalents, and restricted cash at end of period	$ 8,913	$ 8,913

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements

9 Months Ended

Sep. 28, 2025

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements [Abstract]

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements

(2) Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements

On April 14, 2026, authorized officers of the Company and the Audit Committee of the Board of Directors determined that the Company’s previously issued interim financial statements as of and for the thirteen weeks and thirty-nine week period ended September 28, 2025, included in its Quarterly Reports on Form 10-Q contains material errors and should no longer be relied upon and should be restated. These material errors related to the recognition of revenue (and related cost of revenues, sales commissions, sales and marketing, and general and administrative expenses) and interest expense. Additionally, the Company has corrected other immaterial errors related to the reclassification of current and non-current debt obligations, reclassification of payroll expenses between cost of revenues and operating expenses, and the vesting of restricted stock units and related stock-based compensation expense.

This note discloses the nature of the restatement adjustments and discloses the cumulative effects of these adjustments on the Company’s unaudited condensed consolidated balance sheets, unaudited condensed consolidated statements of operations and comprehensive loss, unaudited condensed consolidated statements of stockholders’ deficit and unaudited condensed consolidated statements of cash flows for the periods included in the original Form 10-Q for the thirteen and thirty-nine week periods ended September 28, 2025 (the “Original Report”).

The unaudited condensed consolidated balance sheet, statement of operations and comprehensive income (loss), statement of changes in stockholders’ deficit and statement of cash flows as of and for the thirteen and thirty-nine week periods ended September 28, 2025 have been restated to reflect the corrections identified and described below. The restatement adjustments and their impacts on the previously issued unaudited condensed consolidated financial statements included in the Original Report are shown in the restatement tables of this footnote. The effects of the restatement also have been reflected in the impacted tables and footnotes throughout the notes to these unaudited condensed consolidated financial statements in this Form 10-Q/A.

Unaudited Condensed Consolidated Financial Statements - Restatement Reconciliation Tables

In light of the foregoing, in accordance with ASC 250, Accounting Changes and Error Corrections, the Company is restating its previously issued unaudited condensed consolidated financial statements as of September 28, 2025, to reflect the effects of the restatement adjustments, and to make certain corresponding disclosures. The following tables present a reconciliation of the Company’s unaudited condensed consolidated balance sheets, unaudited condensed consolidated statements of operations and comprehensive loss, unaudited condensed consolidated statements of stockholders’ deficit and unaudited condensed consolidated statements of cash flows previously reported for the period to the restated and revised amounts.

Restated Unaudited Condensed Consolidated Balance Sheet

(in thousands except share and per share amounts)

		As of September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated
ASSETS
Current assets:
Cash and cash equivalents		$	5,072		$	—		$	5,072
Accounts receivable, net	A		80,753			(7,706	)		73,047
Inventories	B		8,694			(124	)		8,570
Prepaid expenses and other current assets	C		20,830			(1,090	)		19,740
Total current assets			115,349			(8,920	)		106,429
Restricted cash			3,841			—			3,841
Property and equipment, net			3,670			—			3,670
Operating lease right-of-use assets			2,528			—			2,528
Intangible assets, net			38,956			—			38,956
Goodwill	D		42,911			(636	)		42,275
Other noncurrent assets			1,085			—			1,085
Total assets		$	208,340		$	(9,556	)	$	198,784

LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities:
Accounts payable		$	19,857		$	—		$	19,857
Accrued expenses and other current liabilities	E		59,271			(2,021	)		57,250
Notes payable to related parties			21,500			—			21,500
Current portion of notes payable	F		—			2,786			2,786
Contract liabilities	G		9,713			3,548			13,261
SAFE Agreement with related party			497			—			497
Forward purchase agreement liabilities with related parties			—			—			—
Forward purchase agreement liabilities			4,301			—			4,301
Total current liabilities			115,139			4,313			119,452
Warranty provision, noncurrent			2,140			—			2,140
Warrant liability			4,683			—			4,683
Contract liabilities, noncurrent			1,713			—			1,713
Notes payable and derivative liabilities, net of current	H		148,205			(8,751	)		139,454
Notes payable and derivative liabilities with related parties, net of current	H		34,572			227			34,799
Operating lease liabilities, net of current portion			1,335			—			1,335
Other long-term liabilities			12,869			—			12,869
Total liabilities			320,656			(4,211	)		316,445

Commitments and contingencies

Stockholders’ deficit:
Common stock			14			—			14
Additional paid-in capital	I		330,083			(329	)		329,754
Accumulated other comprehensive income			165			—			165
Accumulated deficit			(442,578	)		(5,016	)		(447,594	)
Total stockholders’ deficit			(112,316	)		(5,345	)		(117,661	)
Total liabilities and stockholders’ deficit		$	208,340		$	(9,556	)	$	198,784

Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss)

(in thousands except share and per share amounts)

		Thirteen Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated

Revenues	J	$	70,005		$	(5,518	)	$	64,487
Cost of revenues	K		37,965			(5,534	)		32,431
Gross profit			32,040			16			32,056
Operating expenses:
Sales commissions	L		7,534			636			8,170
Sales and marketing	M		6,467			(648	)		5,819
General and administrative	N		21,483			(1,820	)		19,663
Total operating expenses			35,484			(1,832	)		33,652
Loss from continuing operations			(3,444	)		1,848			(1,596	)
Interest expense	O		(8,104	)		1,366			(6,738	)
Interest income			—			—			—
Other expense, net			(4,256	)		—			(4,256	)
Total other expense, net			(12,360	)		1,366			(10,994	)
Loss from continuing operations before income taxes			(15,804	)		3,214			(12,590	)
Income tax provision			—			—			—
Net loss from continuing operations			(15,804	)		3,214			(12,590	)
Net loss from discontinued operations, net of taxes			(1,100	)		—			(1,100	)
Net loss			(16,904	)		3,214			(13,690	)
Comprehensive loss, net of tax		$	(16,904	)	$	3,214		$	(13,690	)
Net loss from continuing operations per share attributable to common stockholders, basic and diluted		$	(0.19	)	$	0.04		$	(0.15	)
Net loss from discontinued operations per share attributable to common stockholders, basic and diluted		$	(0.01	)	$	—		$	(0.01	)
Net loss per share attributable to common stockholders, basic and diluted		$	(0.20	)	$	0.04		$	(0.16	)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	Q		84,904,228			(310,584	)		84,593,644

Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss)

(in thousands except share and per share amounts)

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated

Revenues	J	$	220,269		$	(11,254	)	$	209,015
Cost of revenues	K		126,970			(1,171	)		125,799
Gross profit			93,299			(10,083	)		83,216
Operating expenses:
Sales commissions	L		24,273			636			24,909
Sales and marketing	M		21,764			(259	)		21,505
General and administrative	N		52,382			(1,337	)		51,045
Total operating expenses			98,419			(960	)		97,459
Loss from continuing operations			(5,120	)		(9,123	)		(14,243	)
Interest expense	O		(23,258	)		4,107			(19,151	)
Interest income			3			—			3
Other expense, net			(1,724	)		—			(1,724	)
Total other expense, net			(24,979	)		4,107			(20,872	)
Loss from continuing operations before income taxes			(30,099	)		(5,016	)		(35,115	)
Income tax provision			—			—			—
Net loss from continuing operations			(30,099	)		(5,016	)		(35,115	)
Net loss from discontinued operations, net of taxes			(1,100	)		—			(1,100	)
Net loss			(31,199	)		(5,016	)		(36,215	)
Comprehensive loss, net of tax		$	(31,199	)	$	(5,016	)	$	(36,215	)
Net loss from continuing operations per share attributable to common stockholders, basic and diluted		$	(0.37	)	$	(0.06	)	$	(0.43	)
Net loss from discontinued operations per share attributable to common stockholders, basic and diluted		$	(0.01	)	$	—		$	(0.01	)
Net loss per share attributable to common stockholders, basic and diluted		$	(0.38	)	$	(0.06	)	$	(0.44	)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	Q		82,036,790			(43,700	)		81,993,090

Restated Unaudited Condensed Consolidated Statement of Stockholders’ Deficit

(in thousands except number of shares)

		Thirteen Weeks Ended September 28, 2025
	Explanatory	Common Stock					Additional Paid-in			Accumulated			Accumulated Other Comprehensive		Total Stockholders’
	Notes	Shares			Amount		Capital			Deficit			Income		Deficit
As Previously Reported
Balance as of June 29, 2025			82,325,722		$	14	$	318,311		$	(425,674	)	$	165	$	(107,184	)
Exercise of common stock options			198,096			—		216			—			—		216
Stock-based compensation			—			—		4,174			—			—		4,174
Vesting of restricted stock units			2,310,811			—		—			—			—		—
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(16,904	)		—		(16,904	)
Balance as of September 28, 2025			89,167,963		$	14	$	330,083		$	(442,578	)	$	165	$	(112,316	)

Adjustments
Balance as of June 29, 2025	I		(136,253	)	$	—	$	1,722		$	(8,230	)	$	—	$	(6,508	)
Exercise of common stock options			—			—		—			—			—		—
Stock-based compensation	I		—			—		(2,051	)		—			—		(2,051	)
Vesting of restricted stock units	I		(317,452	)		—		—			—			—		—
Issuance of common stock			—			—		—			—			—		—
Net loss			—			—		—			3,214			—		3,214	)
Balance as of September 28, 2025			(453,705	)	$	—	$	(329	)	$	(5,016	)	$	—	$	(5,345	)

(As Restated)
Balance as of June 29, 2025			82,189,469		$	14	$	320,033		$	(433,904	)	$	165	$	(113,692	)
Exercise of common stock options			198,096			—		216			—			—		216
Stock-based compensation			—			—		2,123			—			—		2,123
Vesting of restricted stock units			1,993,359			—		—			—			—		—
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(13,690	)		—		(13,690	)
Balance as of September 28, 2025			88,714,258		$	14	$	329,754		$	(447,594	)	$	165	$	(117,661	)

Restated Unaudited Condensed Consolidated Statement of Stockholders’ Deficit

(in thousands except number of shares)

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory	Common Stock					Additional Paid-in			Accumulated			Accumulated Other Comprehensive		Total Stockholders’
	Notes	Shares			Amount		Capital			Deficit			Income		Deficit
As Previously Reported
Balance as of December 29, 2024			73,784,645		$	14	$	313,661		$	(411,379	)	$	165	$	(97,539	)
Exercise of common stock options			731,671			—		775			—			—		775
Stock-based compensation			—			—		8,205			—			—		8,205
Vesting of restricted stock units			4,318,313			—		—			—			—		—
Exercise of common stock warrants			6,000,000			—		60			—			—		60
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(31,199	)		—		(31,199	)
Balance as of September 28, 2025			89,167,963		$	14	$	330,083		$	(442,578	)	$	165	$	(112,316	)

Adjustments
Balance as of December 29, 2024			—		$	—	$	—		$	—		$	—	$	—
Exercise of common stock options			—			—		—			—			—		—
Stock-based compensation	I		—			—		(329	)		—			—		(329	)
Vesting of restricted stock units	I		(453,705	)		—		—			—			—		—
Exercise of common stock warrants			—			—		—			—			—		—
Issuance of common stock			—			—		—			—			—		—
Net loss			—			—		—			(5,016	)		—		(5,016	)
Balance as of September 28, 2025			(453,705	)	$	—	$	(329	)	$	(5,016	)	$	—	$	(5,345	)

(As Restated)
Balance as of December 29, 2024			73,784,645		$	14	$	313,661		$	(411,379	)	$	165	$	(97,539	)
Exercise of common stock options			731,671			—		775			—			—		775
Stock-based compensation			—			—		7,876			—			—		7,876
Vesting of restricted stock units			3,864,608			—		—			—			—		—
Exercise of common stock warrants			6,000,000			—		60			—			—		60
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(36,215	)		—		(36,215	)
Balance as of September 28, 2025			88,714,258		$	14	$	329,754		$	(447,594	)	$	165	$	(117,661	)

Restated Unaudited Condensed Consolidated Statement of Cash Flows

(in thousands except share and per share amounts)

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated
Cash flows from operating activities
Net loss	J,K,L,M,N,O	$	(31,199	)	$	(5,016	)	$	(36,215	)
Net loss from discontinued operations, net of income taxes			(1,100	)		—			(1,100	)
Net loss from continuing operations			(30,099	)		(5,016	)		(35,115	)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Stock-based compensation	I		8,205			(329	)		7,876
Non-cash lease expense			826			—			826
Depreciation and amortization			4,293			—			4,293
Provision for credit losses			4,159			—			4,159
Change in fair value of SAFE Agreements with related party			113			—			113
Change in fair value of forward purchase agreement liabilities			807			—			807
Change in fair value of derivative liabilities			(1,639	)		—			(1,639	)
Change in fair value of warrant liabilities			3,122			—			3,122
Amortization of debt issuance costs	H		14,259			(2,431	)		11,828
Non-cash income			(474	)		—			(474	)
Loss on impairments and disposals			140			—			140
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	A		(32,747	)		7,706			(25,041	)
Inventories	B		34,098			1,244			34,222
Prepaid expenses and other current assets	C		(12,462	)		1,090			(11,372	)
Other noncurrent assets			95			—			95
Accounts payable			11,692			—			11,692
Accrued expenses and other liabilities	E,P		(6,360	)		(5,171	)		(11,531	)
Operating lease liabilities			(866	)		—			(866	)
Contract liabilities	G		(10,568	)		4,184			(6,384	)
Net cash used in operating activities			(13,406	)		157			(13,249	)
Cash flows from investing activities
Cash paid for acquisitions, net of cash acquired			(20,689	)		—			(20,689	)
Net cash used in investing activities			(20,689	)		—			(20,689	)
Cash flows from financing activities
Proceeds from issuance of convertible notes			20,000			—			20,000
Proceeds from issuance of convertible notes due to related parties			5,000			—			5,000
Payment of debt issuance costs			(200	)		—			(200	)
Finance lease payments			(1,528	)		—			(1,528	)
Proceeds from issuance of common stock			1,682			—			1,682
Proceeds from exercise of common stock options			775			—			775
Proceeds from exercise of warrant for common stock			60			—			60
Proceeds from investor financing deposit from a related party	P		—			2,000			2,000
Principal repayment of notes payable	H		—			(2,157	)		(2,157	)
Net cash provided by financing activities			25,789			(157	)		25,632
Effect of exchange rate changes			—			—			—
Net decrease in cash, cash equivalents and restricted cash			(8,306	)		—			(8,306	)
Cash, cash equivalents, and restricted cash at beginning of period			17,219			—			17,219
Cash, cash equivalents and restricted cash at end of period		$	8,913		$	—		$	8,913

Description of Restatement Adjustments

The nature and categories of the restatement adjustments and their impacts on the previously reported unaudited condensed consolidated financial statements included in the Original Report are described in the following explanatory notes. The correction of these errors resulted in changes in the components of within cash flows from operations, but resulted in no net change in cash flows from operations.

To correct errors relating to (i) an overstatement of accounts receivables of $7.7 million attributable to transactions that were double counted or recognized in the incorrect period.

To correct the overstatement of inventory by $1.2 million arising from errors in the reconciliation of inventory balances and (ii) reclass of $1.1 million from prepaid expenses and other current assets into inventories due to a classification error.

To correct classification of $1.1 million from prepaid expenses and other current assets into inventories due to classification error.

To correct an overstatement of goodwill due to purchase price accounting.

To (i) correct an overstatement of $3.7 million in accrued expenses and other current liabilities relating to cut-off procedures in connection with the allocation of purchase consideration in the Sunder acquisition, (ii) correct a $1.3 million overstatement of accrued interest related to the senior unsecured convertible notes (iii) correct an understatement of warrant liability of $0.8 million for warrants issued in connection with a service agreement (iv) correct the classification of $2.2 million of principal debt payments from Accrued expenses and other liabilities to Notes payable and derivative liabilities, net of current portion.

To correct an error in the classification of the current portion of the senior unsecured convertible notes of $2.8 million that was previously classified as a long-term liability within Notes payable and derivative liabilities, net of current portion.

To correct an error in understatement of contract liabilities of $3.5 million relating to cut-off errors.

To (i) correct an error in the classification of the current portion of the senior unsecured convertible notes of $2.8 million that was previously classified as a long-term liability within Notes payable and derivative liabilities, net of current portion, (ii) correct the overstatement of amortization of debt discount and issuance costs and resulted understatement of unamortized debt discount and issuance costs of $2.4 million related to the senior unsecured convertible notes (iii) correct the classification of the principal payment of $2.2 million of senior unsecured convertible notes payable from Accrued expenses and other current liabilities to Notes payable and derivative liabilities, net of current, (iv) correct the classification between third parties and related party of $0.2 million, and (v) correct $1.2 million understatement of debt discount and issuance costs incurred.

To correct errors in the restricted stock units (“RSUs”) granted and vested resulting in an overstatement of stock-based compensation expense by $2.1 million and $0.3 million which overstated Additional paid-in capital as of and for the thirteen and thirty-nine week periods ended September 28, 2025, respectively. This error resulted in an overstatement of the non-cash adjustment of stock-based compensation in the unaudited consolidated statement of cash flow.

To correct revenue by $5.5 million and $11.3 million for double counted transactions and transactions recognized in the incorrect period in the thirteen and thirty-nine week periods ended June 29, 2025, respectively.

In the thirteen week period ended September 28, 2025 to (i) correct and reduce the cost of revenue for $2.2 million relating to inventory sold in the second quarter of fiscal 2025, (ii) correct and reduce cost of revenues by $3.0 million due to errors in revenue cut-off (iii) correct stock-based compensation expense that was overstated by $0.8 million relating to errors in RSUs granted and vested, (iii) reclassify $0.6 million of amortization expense from cost of revenues to sales commissions, (iv) reclassify $0.4 million of amortization expense from general and administrative to cost of revenue and (v) correct inventory reconciliation errors of $0.7 million.

In the thirty-nine week period ended September 28, 2025 to (i) correct and reduce cost of revenues by $3.0 million due to errors in revenue cut-off (ii) correct and reduce stock-based compensation expense that was overstated by $0.1 million relating to errors in RSUs granted and vested, (iii) reclassify $0.6 million of amortization expense from cost of revenues to sales commissions, (iv) reclassify $1.2 million of amortization expense from general and administrative to cost of revenue, (v) correct inventory reconciliation errors of $1.1 million.

In the thirteen and thirty-nine week periods ended September 28, 2025 correct sales commissions of $0.6 that was misclassified as cost of revenue.

In the thirteen and thirty-nine week periods ended September 28, 2025, correct and reduce stock-based compensation expense of $0.6 million and $0.3 million due to errors identified in RSU grants and vesting, respectively.

In the thirteen week period ended September 28, 2025 to (i) correct and reduce general and administrative expense $0.8 million relating to costs incorrectly recorded in the third quarter of fiscal 2025 and reclassified to the second quarter of fiscal 2025, (ii) correct the classification of $0.4 million of amortization expense from general and administrative expense to cost of revenue, and (iii) correct and reduce stock-based compensation by $0.6 million due to errors identified in RSU grants and vesting.

In the thirty-nine week period ended September 28, 2025 to (i) correct the classification of $1.2 million of amortization expense from general and administrative expense to cost of revenue, and (ii) correct and stock-based compensation by $0.1 million due to errors identified in RSU grants and vesting.

To correct an error due to the overstatement of interest expense of $1.4 million and $4.1 million of interest and debt discount and issuance costs related to the senior unsecured convertible notes in the thirteen and thirty-nine week periods ended September 28, 2025, respectively.

To correct the classification of a $2.0 million investor financing deposit from cash flow from operations to cash flows from financing activities.

The change in the dilutive shares is to correct dilutive securities considered in the calculation of diluted earnings per share due to the change in operating results.

Organization

9 Months Ended

Sep. 28, 2025

Organization [Abstract]

Organization

(1) Organization

(a) Description of business

SunPower Inc. (“SunPower” or the “Company”) is the rebranded name of Complete Solaria, Inc. (“Complete Solaria”). The rebranding was effective April 22, 2025. References to the Company and SunPower include the same entity under its previous name of Complete Solaria.

The Company originally incorporated in Delaware under the name Complete Solaria, Inc. and is a residential solar installer that offers storage and home energy solutions to customers in North America. The Company was formed through Complete Solar Holding Corporation’s acquisition of The Solaria Corporation (“Solaria”). The Company is headquartered in Orem, Utah.

Complete Solar, Inc. (“Complete Solar”) was incorporated in Delaware on February 22, 2010. Through February 2022, the Company operated as Complete Solar, Inc., a single legal entity. In February 2022, the Company implemented a holding company reorganization (the “Reorganization”) in which the Company created and incorporated Complete Solar Holding Corporation (“Complete Solar Holdings”). As a result of the Reorganization, Complete Solar Holdings became the successor entity to Complete Solar, Inc. Subsequently, Complete Solar Holdings changed its name to Complete Solaria, Inc.

On July 18, 2023, the Company consummated a series of merger transactions contemplated by an Amended and Restated Business Combination Agreement entered into with wholly-owned subsidiaries of Freedom Acquisition I Corp. (“FACT”) (“Mergers”), equating to a reverse recapitalization for accounting purposes. Under the reverse recapitalization of accounting, FACT was treated as the acquired company for financial statement reporting purposes. This determination was based on the Company having a majority of the voting power of the post-combination company, the Company’s senior management comprising substantially all of the senior management of the post-combination company, and the Company’s operations comprising the ongoing operations of the post-combination company. Accordingly, for accounting purposes, the Mergers were treated as the equivalent of a capital transaction in which Complete Solaria issued stock for the net assets of FACT. The net assets of FACT were stated at historical cost, with no goodwill or other intangible assets recorded.

On August 5, 2024, Complete Solaria entered into an Asset Purchase Agreement (the “APA”) among Complete Solaria, SunPower Corporation and SunPower Corporation’s direct and indirect subsidiaries (collectively, the “SunPower Debtors”) providing for the Company’s purchase of certain assets relating to the Blue Raven Solar business, New Homes Business and Non-Installing Dealer network previously operated by the SunPower Debtors (“SunPower Acquisition”). The APA was entered into in connection with a voluntary petition filed by SunPower Corporation under Chapter 11 of the United States Code, 11 U.S.C.§§ 101-1532. The SunPower Acquisition was approved on September 23, 2024, by the United States Bankruptcy Court for the District of Delaware. The Company completed the acquisition in the Company’s fiscal fourth quarter on September 30, 2024.

On September 21, 2025, Complete Solaria, Inc., and Complete Solar, Inc, a subsidiary of the Company, entered into a Membership Interest Purchase Agreement (“MIPA”) with Sunder Energy LLC (“Sunder”) and the seller, Chicken Parm Pizza LLC (“Seller/Member”), the sole member of Sunder. The acquisition of Sunder was completed on September 24, 2025, and the financial results of Sunder have been included in the Company’s unaudited condensed consolidated financial statements since the date of acquisition. Refer to Note 4 – Business Combinations for a description of Sunder.

The aforementioned acquisitions were accounted for as business combinations in accordance with ASC 805, Business Combinations as more fully described in Note 4 – Business Combinations.

The Company completed its legal renaming to SunPower Inc. in the period ended September 28, 2025.

As described in Note 2 Restatement of Previously Issued unaudited Condensed Consolidated Financial Statements, the unaudited condensed consolidated financial statements as of and for the thirteen and thirty-nine week periods ended September 28, 2025 (collectively, the “Affected Periods”), are restated in this Quarterly Report on Form 10-Q/A (this “Amended Report”, this “Quarterly Report” or this “Form 10-Q/A”) to reflect the corrections related the recognition of revenue, cost of revenues, sales commissions, general and administrative expenses and interest expense. The restated unaudited condensed consolidated financial statements are indicated as “Restated” in the unaudited condensed consolidated financial statements and accompanying notes, as applicable. See Note 2 Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements for further discussion.

(b) Liquidity and going concern

Since inception through September 28, 2025, the Company has incurred recurring losses and negative cash flows from operations. The Company’s loss from continuing operations was $36.2 million for the thirty-nine-week period ended September 28, 2025. As of that date, the Company had an accumulated deficit of $447.6 million, total debt of $198.5 million, and cash and cash equivalents, excluding restricted cash, of $5.1 million. The Company anticipates that operating losses and negative operating cash flows may continue in the near term, which raises substantial doubt about its ability to continue as a going concern.

Management is actively pursuing plans to mitigate these conditions, including obtaining additional capital resources through equity or debt financing and leveraging support from significant shareholders when necessary. Historically, the Company has raised funds through private placements of equity securities, issuance of convertible notes and debt, and proceeds from mergers. During the year, funding from significant shareholders, has supported working capital requirements, and similar measures may be considered in the upcoming periods.

Management plans to proactively position the Company to access capital markets once eligible and pursue strategic opportunities to strengthen liquidity. Given the one-year eligibility requirement for Form S-3 after regaining current filer status, the Company will focus on alternative financing options to maintain flexibility and efficiency in capital raising.

However, there can be no assurance that these plans will be successful or that financing will be available on favorable terms. If adequate funding cannot be secured, the Company may need to reevaluate its operating plan, which could include reducing expenditure, extending payment terms with suppliers, liquidating assets, or suspending certain programs.

Therefore, there is substantial doubt about the Company’s ability to continue as a going concern within one year after the date that the unaudited condensed consolidated financial statements are issued. The accompanying unaudited condensed consolidated financial statements have been prepared assuming the Company will continue to operate as a going concern, which contemplates the realization of assets and settlement of liabilities in the normal course of business. They do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from uncertainty related to its ability to continue as a going concern.

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Income Taxes [Abstract]
Income tax expense				$ 11

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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+ Details

Fair Value Measurements - Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($)
$ in Thousands

Sep. 28, 2025

Dec. 29, 2024

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

$ 161,576

$ 136,534

Unamortized debt discount and debt issuance costs

(112,249)

(101,439)

7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

8,750

Unamortized debt discount and debt issuance costs

(6,934)

7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

80,000

Unamortized debt discount and debt issuance costs

(63,033)

7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

22,000

Unamortized debt discount and debt issuance costs

(18,932)

7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

102,000

Unamortized debt discount and debt issuance costs

(81,965)

July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

36,576

22,765

Unamortized debt discount and debt issuance costs

(16,325)

(10,874)

July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

18,000

33,969

Unamortized debt discount and debt issuance costs

(10,332)

(16,877)

July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

54,576

56,734

Unamortized debt discount and debt issuance costs

(26,657)

(27,751)

July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

5,000

Unamortized debt discount and debt issuance costs

(3,627)

7.0% senior unsecured convertible notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

59,576

Unamortized debt discount and debt issuance costs

(30,284)

September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

71,250

71,800

Unamortized debt discount and debt issuance costs

(56,099)

(66,164)

September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

8,000

Unamortized debt discount and debt issuance costs

(7,524)

September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Principal amount

79,800

Unamortized debt discount and debt issuance costs

(73,688)

Level 1 [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

49,327

35,095

Level 1 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

1,816

Level 1 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

16,967

Level 1 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

3,068

Level 1 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

20,035

Level 1 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

20,251

11,891

Level 1 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

7,668

17,092

Level 1 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

27,919

28,983

Level 1 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

1,373

Level 1 [Member] | 7.0% senior unsecured convertible notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

29,292

Level 1 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

15,151

5,636

Level 1 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

476

Level 1 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Net carrying amount excluding capitalized interest

^[1]

6,112

Level 2 [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

174,861

140,541

Level 2 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

9,548

Level 2 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

87,292

Level 2 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

25,090

Level 2 [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

112,382

Level 2 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

33,130

21,390

Level 2 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

23,099

33,323

Level 2 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

56,229

54,713

Level 2 [Member] | July 2024 Notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

6,250

Level 2 [Member] | 7.0% senior unsecured convertible notes [Member] | 12.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

62,479

Level 2 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

$ 77,744

77,245

Level 2 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

8,583

Level 2 [Member] | September 2024 Notes [Member] | 7.0% senior unsecured convertible notes [Member]

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]

Fair value

$ 85,828

[1]	Excludes capitalized interest (coupon interest, default interest and failure to file interest) of $11.0 million and $13.6 million as of September 28, 2025 and December 29, 2024, respectively, included in the July 2024 Notes.

Capital Stock (Details) $ / shares in Units, $ in Thousands							1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
Capital Stock (Details) $ / shares in Units, $ in Thousands	Dec. 29, 2024 USD ($) shares	Aug. 14, 2024 shares	Jul. 16, 2024 USD ($)	Jul. 01, 2024 USD ($) shares	Jun. 17, 2024 USD ($) $ / shares shares	Jul. 31, 2023 $ / shares shares	Jul. 31, 2024 USD ($) $ / shares shares	Sep. 28, 2025 USD ($) shares	Sep. 29, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 28, 2025 USD ($) shares	Sep. 29, 2024 USD ($)	Dec. 31, 2024 USD ($) shares	Sep. 24, 2025 $ / shares	Sep. 21, 2025 USD ($)	Jan. 31, 2025 USD ($)	Sep. 09, 2024 shares	Dec. 31, 2023 shares	Feb. 28, 2022 $ / shares shares
Capital Stock [Line Items]
Common stock, shares authorized	1,000,000,000							1,000,000,000			1,000,000,000
Preferred stock issued
Preferred stock outstanding
Newly issued shares (in Dollars) \| $								$ 7,382	$ 6,143		$ 7,382	$ 6,143
Percentage of average daily trading Volume		5.00%
Shares of common stock	73,784,645							88,714,258			88,714,258
Common stock for proceeds (in Dollars) \| $											$ 1,682	6,143
Warrant purchase shares					6,000,000
Exercise price per share (in Dollars per share) \| $ / shares					$ 0.01
Change in fair value of warrant liabilities (in Dollars) \| $											$ 3,122	2,116
Cash (in Dollars) \| $																$ 60
Debt discount (in Dollars) \| $							$ 900								$ 2,200
Common stock issued percentage						2.795%
Income amount (in Dollars) \| $										$ 2,900
Expense amount (in Dollars) \| $								$ 1,100
Ayna Warrant [Member]
Capital Stock [Line Items]
Change in fair value of warrant liabilities (in Dollars) \| $					$ 9,200
Exercise price per share (in Dollars per share) \| $ / shares					$ 0.01
Recognized expense (in Dollars) \| $									3,800			5,400
Warrant to purchase shares																	6,000,000
Expense amount (in Dollars) \| $	$ 700
Cantor Warrant [Member]
Capital Stock [Line Items]
Change in fair value of warrant liabilities (in Dollars) \| $							$ 1,400
Exercise price per share (in Dollars per share) \| $ / shares							$ 1.68
Warrant to purchase shares							3,066,141
Convertible note issued (in Dollars) \| $							$ 500
Warrant term							5 years
Carlyle Warrants [Member]
Capital Stock [Line Items]
Change in fair value of warrant liabilities (in Dollars) \| $				$ 7,300						$ 6,600
Warrant to purchase shares						1,995,879												2,190,604	2,886,952
Number of share exercisable																			1,995,879
Issuance of warrants						1,995,879
Issuance of common stock to related party				4,936,483
Other expense (in Dollars) \| $				$ 7,300
Warrant [Member]
Capital Stock [Line Items]
Warrant to purchase shares						1,995,879
Ten Days [Member] \| Warrant [Member]
Capital Stock [Line Items]
Warrant to purchase shares						350,000
Thirty Days [Member] \| Warrant [Member]
Capital Stock [Line Items]
Warrant to purchase shares						150,000
Ninety Days [Member] \| Warrant [Member]
Capital Stock [Line Items]
Warrant to purchase shares						250,000
Measurement Input, Option Volatility [Member]
Capital Stock [Line Items]
Warrant assumption							55
Measurement Input, Risk Free Interest Rate [Member]
Capital Stock [Line Items]
Warrant assumption							4.2
Common Stock [Member]
Capital Stock [Line Items]
Common stock, shares authorized								1,000,000,000			1,000,000,000
Newly issued shares (in Dollars) \| $
Common stock outstanding, percentage			9.99%
Common stock for proceeds (in Dollars) \| $											$ 1,700		$ 6,700
Common stock price (in Dollars per share) \| $ / shares														$ 1.71
Common Stock [Member] \| Carlyle Warrants [Member]
Capital Stock [Line Items]
Common stock price (in Dollars per share) \| $ / shares						$ 0.01
Common Stock [Member] \| Warrant [Member]
Capital Stock [Line Items]
Warrant to purchase shares						2,745,879
Common stock price (in Dollars per share) \| $ / shares						$ 0.01													$ 0.01
Common Stock [Member] \| White Lion Capital, LLC [Member]
Capital Stock [Line Items]
Newly issued shares (in Dollars) \| $			$ 30,000
Shares of common stock								1,000,000			1,000,000		2,900,000
Common Stock [Member] \| Hour Rapid [Member]
Capital Stock [Line Items]
Shares of common stock		100,000
Preferred Stock [Member]
Capital Stock [Line Items]
Preferred stock, shares authorized								10,000,000			10,000,000

Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
Segment Information (Details) $ in Thousands	Sep. 28, 2025 USD ($)	Sep. 29, 2024 USD ($)	Sep. 28, 2025 USD ($) segments	Sep. 29, 2024 USD ($)
Segment Information [Line items]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]			Chief Executive Officer
Description of segment information			The CODM evaluates the performance of these reportable segments and allocates resources to make operating decisions based on certain financial information, including segmented internal income/(loss) prepared on a basis consistent with U.S. GAAP. The measurement criteria is based on their operating revenue and operating income (loss) and excluding any corporate costs which are not allocatable to the operating segments.
Depreciation and amortization expense	$ 600		$ 4,293	$ 991
Residential Solar Installation and New Homes Business [Member]
Segment Information [Line items]
Depreciation and amortization expense			2,200
Residential Solar Installation [Member]
Segment Information [Line items]
Depreciation and amortization expense				1,000
Residential Solar Installation [Member]
Segment Information [Line items]
Depreciation and amortization expense	400	$ 300		$ 1,000
Residential Solar Installation and New Homes Business [Member]
Segment Information [Line items]
Depreciation and amortization expense	$ 300		900
New Homes Business [Member]
Segment Information [Line items]
Depreciation and amortization expense			$ 1,200
Reportable Segment [Member]
Segment Information [Line items]
Reportable segments (in segments) \| segments			3

SAFE Agreements (Details) - USD ($) $ in Millions					3 Months Ended		9 Months Ended
SAFE Agreements (Details) - USD ($) $ in Millions	May 13, 2024	Apr. 21, 2024	Feb. 15, 2024	Jan. 31, 2024	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Dec. 29, 2024
SAFE Agreements [Line Items]
Estimated fair value amount					$ 0.5		$ 0.5		$ 0.4
Change in fair value					$ 0.1	$ 0.9	$ 0.1	$ 0.9
First SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions				the Company entered into a Simple Agreement for Future Equity (“SAFE”) (the “First SAFE”) with the Rodgers Massey Freedom and Free Markets Charitable Trust (the “Purchaser”), a related party, affiliated with Thurman J. Rodgers, the Company’s Chief Executive Officer and a director, in connection with the Purchaser investing $1.5 million in the Company. The First SAFE did not accrue interest. The First SAFE was initially convertible into shares of the Company’s common stock, par value $0.0001 per share, upon the closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company would have issued and sold shares of its common stock at a fixed valuation (an “Equity Financing”), at a per share conversion price which was equal to the lower of (i) (a) $53.54 million divided by (b) the Company’s capitalization immediately prior to such Equity Financing (such conversion price, the “SAFE Price”), and (ii) 80% of the price per share of its common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the First SAFE, the Purchaser would have been automatically entitled to receive a portion of the proceeds of such liquidity event equal to the greater of (i) $1.5 million and (ii) the amount payable on the number of shares of common stock equal to (a) $1.5 million divided by (b)(1) $53.54 million divided by (2) the Company’s capitalization immediately prior to such liquidity event (the “Liquidity Price”), subject to certain adjustments as set forth in the First SAFE. The First SAFE was convertible into a maximum of 1,431,297 shares of the Company’s common stock, assuming a per share conversion price of $1.05, which is the product of (i) $1.31, the closing price per share of the Company’s common stock on January 31, 2024, multiplied by (ii) 80%.
Description of simple agreement for future equity amendment		the Company entered into an amendment (“First SAFE Amendment”) that converted the First SAFE investment of $1.5 million into 4,166,667 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the First SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to the First SAFE Agreement of $1.5 million, a credit to Additional paid-in-capital of $1.9 million and recognized expense of $0.4 million within Other expense, net in its unaudited condensed consolidated statement of operations in the Company’s second fiscal quarter ended June 30, 2024.
Second SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions			the Company entered into a second SAFE (the “Second SAFE”) with the Purchaser, in connection with the Purchaser investing $3.5 million in the Company. The Second SAFE did not accrue interest. The Second SAFE was initially convertible into shares of the Company’s common stock upon the initial closing of an Equity Financing transaction at a per share conversion price which was equal to the lower of (i) the Second SAFE Price, and (ii) 80% of the price per share of the Company’s common stock sold in an Equity Financing transaction. If the Company consummated a change of control prior to the termination of the Second SAFE, the Purchaser would have been automatically entitled to receive an amount equal to the greater of (i) $3.5 million and (ii) the amount payable on the number of shares of the Company’s common stock equal to $3.5 million divided by the Liquidity Price, subject to certain adjustments as set forth in the Second SAFE. The Second SAFE was convertible into a maximum of 3,707,627 shares of the Company’s common stock, assuming a per share conversion price of $0.94, which is the product of (i) $1.18, the closing per share price of its common stock on February 15, 2024, multiplied by (ii) 80%.
Description of simple agreement for future equity amendment		the Company entered into an amendment (“Second SAFE Amendment”) that converted the Second SAFE investment of $3.5 million into 9,722,222 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the Second SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to the Second SAFE Agreement of $3.5 million, a credit to Additional paid-in-capital of $4.4 million and recognized expense of $0.9 million within Other expense, net in its unaudited condensed consolidated statement of operations in the Company’s second fiscal quarter ended June 30, 2024.
Third SAFE [Member]
SAFE Agreements [Line Items]
Description of simple agreement for future equity terms and conditions	the Company entered into a third SAFE (the “Third SAFE”) with the Purchaser, in connection with the Purchaser investing $1.0 million in the Company. The Third SAFE is convertible into shares of the Company’s common stock upon the initial closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company issues and sells shares of its common stock in an Equity Financing transaction, at a per share conversion price which is equal to 50% of the price per share of the Company’s common stock sold in an Equity Financing. If the Company consummates a change of control prior to the termination of the Third SAFE, the Purchaser will be automatically entitled to receive a portion of the proceeds of such liquidity event equal to $1.0 million, subject to certain adjustments as set forth in the Third SAFE. The Third SAFE is convertible into a maximum of 2,750,000 shares of the Company’s common stock, assuming a per share conversion price of $0.275, which is the product of (i) $0.55, the closing price of the Company’s common stock on May 13, 2024, multiplied by (ii) 50%. Given that the Third SAFE may be settled in cash or a variable number of shares, the Company has accounted for the instrument as a liability at its fair value.

Basis of Presentation and Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 28, 2025
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Installation projects term	12 months
Percentage of borrowing unsecured convertible notes	12.00%
Minimum [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Payment terms to customers range	30 days
Maximum [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Payment terms to customers range	60 days

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483443/250-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147483443/250-10-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479343/105-10-65-9

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
-Paragraph 9
-Subparagraph (c)
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-URI https://asc.fasb.org/1943274/2147479343/105-10-65-9

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 65
-Paragraph 9
-Subparagraph (d)(2)
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-URI https://asc.fasb.org/1943274/2147479343/105-10-65-9

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 65
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Section 65
-Paragraph 17
-Subparagraph (d)(1)
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
-Paragraph 17
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480336/718-10-65-17

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Section 65
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-Section 65
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-Subparagraph (b)
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Name Accounting Standards Codification
-Section 65
-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147476173/280-10-65-1

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483443/250-10-50-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
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Reference 19: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Accrued Expenses and Other Current Liabilities

9 Months Ended

Sep. 28, 2025

Accrued Expenses and Other Current Liabilities [Abstract]

Accrued Expenses and Other Current Liabilities

(7) Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	As of
	September 28,		December 29,
	2025		2024
	(As Restated)
Accrued compensation and benefits	$	5,983	$	6,619
Professional fees		3,819		8,028
Accrued legal settlements		9,153		7,700
Accrued rebates and credits		5,769		7,641
Accrued interest ⁽¹⁾		4,471		4,523
Deferred consideration – related party		5,700		—
Investor financing deposit – related party ⁽²⁾		2,000		—
Other accrued liabilities ⁽³⁾		20,355		21,570
Total accrued expenses and other current liabilities	$	57,250	$	56,081

⁽¹⁾	Includes related party accrued interest of $1.3 million and $2.2 million as of September 28, 2025 and December 29, 2024, respectively.

⁽²⁾	The Company received $2.0 million from the Rodgers Massey Revocable Living Trust (“Rodgers Revocable Trust”) in the period ended September 28, 2025.

⁽³⁾	No individual items exceed 5% of total current liabilities.

Subsequent Events

9 Months Ended

Sep. 28, 2025

Subsequent Events [Abstract]

Subsequent Events

(18) Subsequent Events

Partial conversion of September 2024 Notes

Subsequent to September 28, 2025, holders of $10.6 million of the Company’s September 2024 Notes converted their September 2024 Notes into 6.2 million shares of common stock of the Company.

Acquisition of Ambia Energy LLC

On November 11, 2025, the Company announced that it signed a non-binding letter of intent to acquire Ambia Energy, LLC (“Ambia”) located in Lindon, Utah in exchange for approximately $37.5 million of equity in SunPower, subject to customary closing conditions.

On November 21, 2025, the Company entered into a Membership Interest Purchase Agreement (the “Membership Interest Purchase Agreement”) with Ambia and Ambia Holdings, Inc., a Delaware corporation and the sole member of Ambia (the “Member”). The Company, Ambia and the Member completed the closing under the Membership Interest Purchase Agreement (the “Ambia Closing”) on November 21, 2025. At the Ambia Closing, the Company acquired all of the outstanding membership interests of Ambia from the Member for: (a) 10,243,924 shares (the “Closing Consideration Shares”) of common stock of the Company, $0.0001 par value per share (the “Common Stock”), issued at the Ambia Closing to the Member; and (b) the agreement to issue an additional $9.375 million of shares of Common Stock on the six-month anniversary of the Ambia Closing and an additional $9.375 million of shares of Common Stock on the 12-month anniversary of the Ambia Closing (such additional shares of Common Stock, the “Post-Closing Consideration Shares”). The issuance of the Post-Closing Consideration Shares is subject to approval by the Company’s stockholders following the Ambia Closing in accordance with the rules and regulations of the Nasdaq Stock Market (including Nasdaq Listing Rule 5635(a)). The actual number of Post-Closing Consideration Shares issuable by the Company on the six- and 12-month anniversaries of the Ambia Closing will be determined based on the 20-day trailing volume-weighted average price of the Common Stock after market close on the business day immediate prior to the issuance date of the applicable shares (the “VWAP Value”); provided that the VWAP Value for the calculation of the actual number of Post-Closing Consideration Shares issuable by the Company will not be more than $2.8102 per share or less than $1.4988 per share. Additionally, the number of Post-Closing Consideration Shares issuable by the Company is subject to adjustment pursuant to customary working capital and balance sheet adjustment terms and subject to offset for certain indemnifiable damages in accordance with the Membership Interest Purchase Agreement. Pursuant to the terms and conditions of the Membership Interest Purchase Agreement, the Company agreed to register the Closing Consideration Shares and the Post-Closing Consideration Shares for resale to the public under the Securities Act of 1933, as amended. The Membership Interest Purchase Agreement includes customary representations and warranties, covenants, and indemnities, in each case under the circumstances and subject to certain limitations set forth in the Membership Interest Purchase Agreement. The indemnification obligations under the Membership Interest Purchase Agreement are subject to customary baskets and caps. The Company’s primary source of recovery for indemnifiable damages is set off of such damages against the Post-Closing Consideration Shares issuable by the Company following the Ambia Closing.

The initial accounting for this business combination is incomplete at this time due to the proximity of the Ambia Closing to the issuance date of these condensed consolidated financial statements.

NASDAQ Deficiency

On November 19, 2025, the Company received a letter from the Listing Qualifications staff of Nasdaq indicating that, as a result of the Company’s delay in filing its Q3 2025 Form 10Q, the Company was not in compliance with the timely filing requirements for continued listing under Nasdaq Listing Rule 5250(c)(1). The Nasdaq letter had no immediate effect on the listing or trading of the Company’s common stock or warrants. The Nasdaq listing rules require Nasdaq-listed companies to timely file all required periodic reports with the SEC. The Nasdaq letter stated that, under Nasdaq rules, the Company has 60 calendar days to submit a plan to regain compliance with Nasdaq’s continued listing requirements. The Company filed its Q3 2025 Form 10Q on December 19, 2025.

Issuance of 12% convertible senior unsecured convertible note to related party

On November 20, 2025, the Company issued a convertible promissory note in the original principal amount of $2.0 million (“November 2025 Note”) to a trust controlled by the Company’s CEO in exchange for cash. The November 2025 Note is a general unsecured obligation of the Company and will mature on July 1, 2029, unless earlier converted, redeemed or repurchased. Interest on the November 2025 Note will be payable semiannually in arrears on January 1 and July 1 of each year, beginning on January 1, 2026. The Note is convertible at the option of the holder at any time prior to the payment of the payment of the principal amount of the November 2025 Note in full. The conversion rate of the November 2025 Note is initially equal to 626.9592 shares of the Company’s common stock per $1,000 principal amount due under the November 2025 Note. The conversion rate shall be subject to adjustment from time to time pursuant to the terms of the November 2025 Note. The Company may not redeem the Note prior to July 5, 2026.

Siemens Settlement

As described in Note 13 – Commitments and Contingencies, the Company entered into a Settlement Agreement with Siemens on December 4, 2025 to resolve a case in the Court and other related cases as well as to resolve potential claims related to Siemens’ Atwater Wastewater Treatment Plant. Refer to Note 13 – Commitments and Contingencies for details.

Basis of Presentation and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 28, 2025

Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash

The Company reconciles cash, cash equivalents, and restricted cash reported in its unaudited condensed consolidated balance sheets that aggregate to the beginning and ending balances shown in the Company’s unaudited condensed consolidated statements of cash flows as follows (in thousands):

	As of
	September 28, 2025		December 29, 2024
Cash and cash equivalents	$	5,072	$	13,378
Restricted cash		3,841		3,841
Total cash, cash equivalents and restricted cash	$	8,913	$	17,219

Schedule of Allowance for Credit Loss

The following table summarizes the allowance for credit loss activity as of and for the periods ended (in thousands):

	Thirty-Nine Weeks Ended
	September 28,			September 29,
	2025			2024
Balance at beginning of year	$	(1,701	)	$	(9,846	)
Provision charged to earnings		(4,159	)		(4,204	)
Amounts written off, net of recoveries and other adjustments		1,048			1,041
Balance at end of period	$	(4,812	)	$	(13,009	)

Schedule of Contract Liabilities Balances

Total contract liabilities balances as of the respective dates are as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
Contract liabilities current and noncurrent		(14,974	)		(10,921	)

Schedule of Revenue Recognized

Refer to the table below for the Company’s revenue recognized (in thousands):

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
	(As Restated)				(As Restated)
Residential Solar Installation
Revenue recognized over time	$	35,179	$	5,536	$	110,199	$	20,068
Total Residential Solar Installation		35,179		5,536		110,199		20,068

New Homes Business
Revenue recognized over time		9,415		—		34,943		—
Revenue recognized at a point in time		19,087		—		63,067		—
Total New Homes Business		28,502		—		98,010		—

Dealer
Revenue recognized at a point in time		806		—		806		—
Total Dealer		806		—		806		—
Total revenue	$	64,487	$	5,536	$	209,015	$	20,068

Total revenue recognized over time	$	44,594	$	5,536	$	145,142	$	20,068
Total revenue recognized at a point in time		19,893		—		63,873		—

Schedule of Components of Prepaid Expenses and Other Current Assets

The following table summarizes the components of prepaid expenses and other current assets:

	As of
	September 28,		December 29,
	2025		2024
		(As Restated)
Deferred costs	$	19,647	$	3,759
Other		93		4,447
Total prepaid expenses and other current assets	$	19,740	$	8,206

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements (Details) - USD ($)

3 Months Ended

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Sep. 28, 2025

Sep. 29, 2024

Dec. 29, 2024

Organization [Line Items]

Inventories

$ 8,570,000

$ 22,110,000

Overstated prepaid expenses and other current assets

1,100,000

Corrected prepaid expenses and other current assets

1,100,000

Interest expense

3,700,000

4,100,000

Overstated accrued expenses and other current liabilities

3,700,000

Accrued expenses and other current liabilities

1,300,000

1,400,000

Overstatement of accrued interest related to the senior unsecured convertible notes

1,300,000

Notes payable and derivative liabilities

800,000

Corrected Warrant Liability

800,000

Accounts payable and other accrued liabilities

^[1]

57,250,000

56,081,000

Accrued expenses and other current liabilities

2,800,000

Contract liabilities

3,500,000

Senior unsecured convertible notes amortization of debt discount and issuance costs

2,400,000

Notes payable and derivative liabilities, net of current

2,200,000

Debt correction between third parties and related party

200,000

Notes payable

198,539,000

$ 147,331,000

Stock-based compensation

2,123,000

$ 1,516,000

7,876,000

$ 4,086,000

Revenues

64,487,000

$ 5,536,000

209,015,000

$ 20,068,000

Stock-based compensation expense overstated

39,000,000

13,000,000

Cost of revenues understated

600,000

Sales and marketing was overstated

600,000

Cost of revenues overstated

300,000

Stock-based compensation expense that was overstated

600,000

100,000

Stock-based compensation expenses

1,200,000

Financing activities

2,000,000

Sunder Energy Acquisition [Member]

Organization [Line Items]

Cost of revenues overstated

800,000

Revision of Prior Period, Adjustment [Member]

Organization [Line Items]

Inventories

(124,000)

Accounts payable and other accrued liabilities

(2,021,000)

Stock-based compensation

(2,051,000)

(329,000)

Revenues

(5,518,000)

(11,254,000)

Revision of Prior Period, Adjustment [Member] | Sunder Energy Acquisition [Member]

Organization [Line Items]

Accounts payable and other accrued liabilities

2,200,000

Revision of Prior Period, Adjustment [Member] | Maximum [Member]

Organization [Line Items]

Stock-based compensation

(2,100)

Revision of Prior Period, Adjustment [Member] | Minimum [Member]

Organization [Line Items]

Stock-based compensation

300,000

As Previously Reported [Member]

Organization [Line Items]

Notes payable

1,200,000

Revenues

5,500,000

11,300,000

Revenue Recognition [Member] | Revision of Prior Period, Adjustment [Member]

Organization [Line Items]

Accounts receivable, net

7,700,000

Inventories

$ 1,200,000

[1]	Includes accrued interest due to related parties of $1.3 million and $2.2 million as of September 28, 2025, and December 29, 2024, respectively. Includes investor financing deposit of $2.0 million as of September 28, 2025.

Other Expense, Net (Tables)

9 Months Ended

Sep. 28, 2025

Other Expense, Net [Abstract]

Schedule of Other Expense, Net

Other expense, net consists of the following (in thousands):

	Thirteen Weeks Ended						Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024			September 28, 2025			September 29, 2024
Loss on issuance of derivative liabilities⁽¹⁾	$	—		$	(24,688	)	$	—		$	(24,688	)
Change in fair value of derivative liabilities⁽²⁾		(2,034	)		(37,875	)		1,639			(37,875	)
Change in fair value of forward purchase agreement liabilities⁽³⁾		(2,420	)		7,728			(807	)		4,906
Change in fair value of SAFE Agreement with related party		(79	)		(900	)		(113	)		(900	)
Change in fair value of FACT public, private placement and working capital warrants		(78	)		(6,052	)		(3,122	)		(6,295	)
Change in fair value of Carlyle Warrants with related party		—			—			—			2,869
Change in fair value of redeemable convertible preferred stock warrant liability		—			—			—			1,310
Loss on conversion of SAFE Agreements to common stock with related party		—			—			—			(1,250	)
Other financing costs		—			(3,812	)		—			(3,812	)
Other, net⁽⁴⁾		355			(85	)		679			(499	)
Total Other Expense, net	$	(4,256	)	$	(65,684	)	$	(1,724	)	$	(66,234	)

(1)	Includes $3.0 million of related party expense in each of the thirteen and thirty-nine week periods ended September 29, 2024.

(2)

Includes a loss of $0.3 million and a gain of $1.8 million due to related parties in the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Includes a loss of $22.8 million due to related parties in each of the thirteen and thirty-nine week periods ended September 29, 2024. Refer to Note 10 – Borrowings and Derivative Liabilities for details.

(3)

Includes a gain of zero and $0.1 million due to related parties for the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Includes a gain from related parties of $2.8 million and $1.8 million due to related parties in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.

(4)	Includes zero and $0.1 million of income due to related parties in the thirteen and thirty-nine week periods ended September 28, 2025, respectively.

Basic and Diluted Net Loss Per Share (Tables)

9 Months Ended

Sep. 28, 2025

Basic and Diluted Net Loss Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the thirteen and thirty-nine week periods ended September 28, 2025 and September 29, 2024 (in thousands, except share and per share amounts):

	Thirteen Weeks Ended						Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024			September 28, 2025			September 29, 2024
	(As Restated)						(As Restated)
Numerator:
Net loss from continuing operations	$	(12,590	)	$	(77,958	)	$	(35,115	)	$	(101,433	)
Net loss from discontinued operations		(1,100	)		—			(1,100	)		(2,007	)
Net loss	$	(13,690	)	$	(77,958	)	$	(36,215	)	$	(103,440	)
Denominator:
Weighted average common shares outstanding, basic and diluted		84,593,644			75,348,627			81,993,090			61,868,747
Net loss per share, basic and diluted:
Continuing operations	$	(0.15	)	$	(1.03	)	$	(0.43	)	$	(1.64	)
Discontinued operations		(0.01	)		—			(0.01	)		(0.03	)
Net loss	$	(0.16	)	$	(1.03	)	$	(0.44	)	$	(1.67	)

Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock

The following table presents the potential common shares outstanding that were excluded from the computation of diluted net loss per share of common stock as of the periods presented because including them would have been anti-dilutive:

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
Common stock warrants		193,740		31,670,265		197,578		31,670,265
Stock options and RSUs issued and outstanding		15,338,613		14,170,385		9,850,548		14,170,385
Convertible notes		77,821,528		58,579,636		77,821,528		58,579,636
Third SAFE Agreement		2,750,000		—		2,750,000		—
Deferred consideration shares		6,666,666		—		6,666,666		—
Total potential common shares excluded from diluted net loss per share		102,770,547		104,420,286		97,286,320		104,420,286

Borrowings and Derivative Liabilities (Tables)

9 Months Ended

Sep. 28, 2025

Borrowings and Derivative Liabilities [Abstract]

Schedule of Borrowings and Derivative Liabilities

The Company’s borrowings and derivative liabilities consist of the following (in thousands):

	As of
	September 28,			December 29,
	2025			2024
	(As Restated)
12.0% senior unsecured convertible notes
July 2024 Notes	$	33,394		$	17,965
July 2024 Notes derivative liability		21,664			13,563
July 2024 Notes – related parties		7,668			24,632
July 2024 derivative liability – related parties		13,940			21,127
July 2025 Note – related party		1,373			—
July 2025 Note – derivative liability – related party		3,468			—

7.0% senior unsecured convertible notes
September 2024 Notes		15,151			5,636
September 2024 Notes derivative liability		52,708			55,474
September 2024 Notes – related party		1,816			476
September 2024 Notes – derivative liability – related party		6,515			6,958
September 2025 Notes		3,068			—
September 2025 Notes derivative liability		16,274			—

Note payable to Seller – related party		20,000			—
Loan with related party		1,500			1,500
Total notes payable		198,539			147,331
Less current portion		(24,286	)		(1,500	)
Notes payable and convertible notes, net of current portion	$	174,253		$	145,831

As classified in the unaudited condensed consolidated balance sheets
Notes payable to related parties		21,500			1,500
Current portion of notes payable		2,786
Notes payable and derivative liabilities		139,454			92,638
Notes payable and derivative liabilities with related parties, net of current portion		34,799			53,193
Total notes payable	$	198,539		$	147,331

Schedule of Fair Value of the Derivative Liability

The carrying amount of the convertible July 2024 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
July 2024 Notes	$	67,719		$	70,348
Less Unamortized debt discount		(26,657	)		(27,751	)
Total carrying amount of July 2024 Notes	$	41,062		$	42,597

The carrying amount of the convertible July 2025 Note, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
July 2025 Note – related party	$	5,000		$	—
Less Unamortized debt discount		(3,627	)		—
Total carrying amount of July 2025 Note – related party	$	1,373		$	—

The carrying amount of the convertible September 2024 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
September 2024 Notes	$	80,000		$	79,800
Less Unamortized debt discount		(63,033	)		(73,688	)
Total carrying amount of September 2024 Notes and derivative liabilities	$	16,967		$	6,112

The carrying amount of the convertible September 2025 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
	(As Restated)
September 2025 Notes	$	22,000		$	—
Less Unamortized debt discount		(18,932	)		—
Total carrying amount of September 2025 Notes and derivative liabilities	$	3,068		$	—

Capital Stock (Tables)

9 Months Ended

Sep. 28, 2025

Capital Stock [Abstract]

Schedule of Reserved Shares of Common Stock

The Company has reserved shares of common stock for issuance related to the following:

	As of
	September 28,		December 29,
	2025		2024
		(As Restated)
Common stock warrants		25,670,265		31,670,265
Employee stock purchase plan		3,174,434		2,628,996
Stock options and RSUs, issued and outstanding		21,549,600		11,979,368
Stock options and RSUs, authorized for future issuance		9,986,173		2,577,895
SAFE Agreement		2,750,000		2,750,000
Forward purchase agreements		6,720,000		6,720,0000
Convertible notes		77,821,528		58,579,636
Deferred consideration		6,666,666		—
Total shares reserved		154,338,666		116,906,160

Schedule of Common Stock for Outstanding Warrants

The potential number of shares of the Company’s common stock for outstanding warrants were as follows:

	Potential shares of common stock as of				Exercise
	September 28, 2025		December 29, 2024		price per share		Expiration date
Liability classified warrants
Public Warrants		6,266,667		6,266,667	$	11.50	July 18, 2028 ⁽¹⁾
Private Placement Warrants		8,625,000		8,625,000		11.50	July 18, 2028 ⁽¹⁾
Working Capital Warrants		716,668		716,668		11.50	July 18, 2028 ⁽¹⁾
Total shares of common stock – liability classified warrants		15,608,335		15,608,335
Equity classified warrants
Series B Warrants (converted to common stock warrants)		5,054		5,054	$	4.30	February 2026
Series C Warrants (converted to common stock warrants)		482,969		482,969		1.00	July 2026
Series C-1 Warrants (converted to common stock warrants)		173,067		173,067		0.01	January 2030
SVB Common Stock Warrants		2,473		2,473		0.38	2033
SVB Common Stock Warrants		2,525		2,525		0.62	2033
Promissory Note Common Stock Warrants		24,148		24,148		0.01	October 2031
July 2023 Common Stock Warrants		38,981		38,981		0.01	July 2028
Common Stock Warrants Issued in 2023 (“Merger Warrants”)		6,266,572		6,266,572		11.50	July 18, 2033
Ayna Warrant		—		6,000,000		0.01	June 2029
Cantor Warrant		3,066,141		3,066,141		1.68	June 2029
Total shares of common stock – equity classified warrants		10,061,930		16,061,930
Total potential shares of common stock		25,670,265		31,670,265

⁽¹⁾	The warrants expire five years after the Closing date of the Mergers, which date was July 18, 2023, or earlier upon redemption or liquidation.

Stock-Based Compensation - Schedule of Stock Option Activity (Details) - Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 28, 2025
Schedule of Stock Option Activity [Line Items]
Number of Shares, outstanding beginning	9,997,233
Weighted Average Exercise Price per Share, outstanding beginning (in Dollars per share)	$ 2.77
Weighted Average Contractual Term (Years), outstanding beginning	5 years 3 months 14 days
Aggregate Intrinsic Value, outstanding beginning (in Dollars)	$ 6,356
Number of shares, Options granted
Number of Shares, Options exercised	(712,467)
Weighted Average Exercise Price per Share, Options exercised (in Dollars per share)	$ 0.73
Aggregate Intrinsic Value, Options exercised (in Dollars)	$ 88
Number of Shares, Options canceled	(4,874,689)
Weighted Average Exercise Price per Share, Options canceled (in Dollars per share)	$ 2.53
Number of Shares, outstanding ending	4,410,078
Weighted Average Exercise Price per Share, outstanding ending (in Dollars per share)	$ 3.04
Aggregate Intrinsic Value, outstanding ending (in Dollars)	$ 2,157
Number of Shares, Vested and expected to vest	4,410,078
Weighted Average Exercise Price per Share, Vested and expected to vest (in Dollars per share)	$ 3.04
Aggregate Intrinsic Value, Vested and expected to vest (in Dollars)	$ 2,157
Number of Shares, Vested and exercisable	2,364,439
Weighted Average Exercise Price per Share, Vested and exercisable (in Dollars per share)	$ 6.98
Aggregate Intrinsic Value , Vested and exercisable (in Dollars)	$ 722

Basis of Presentation and Summary of Significant Accounting Policies

9 Months Ended

Sep. 28, 2025

Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

(3) Basis of Presentation and Summary of Significant Accounting Policies

(a) Basis of presentation

The interim unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.

The accompanying interim condensed consolidated financial statements are unaudited and have been prepared by the Company in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and in accordance with the rules and regulations of the Securities and Exchange Commission (the “SEC”). Accordingly, these interim unaudited condensed consolidated financial statements do not include all the information and disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, these interim unaudited condensed consolidated financial statements reflect all adjustments, consisting of normal recurring adjustments, necessary to present fairly the Company’s financial position as of September 28, 2025, and the results of operations for the thirteen and thirty-nine week periods ended September 28, 2025 and September 29, 2024. The results of operations for interim periods are not necessarily indicative of the results to be expected for the full year or any other future period. These interim unaudited condensed consolidated financial statements and related notes should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended December 29, 2024, included in the Company’s Annual Report on Form 10-K filed with the SEC on April 30, 2025.

The Company’s operates on a 52-to-53-week fiscal year that ends on the Sunday closest to December 31. The Company’s fiscal year for 2024 ended December 29, 2024. The Company’s third fiscal quarters for 2025 and 2024 in this report on Form 10-Q ended on September 28, 2025 (“Third Quarter 2025”) and September 29, 2024 (“Third Quarter 2024”), respectively.

(b) Cash and cash equivalents and restricted cash

	As of
	September 28, 2025		December 29, 2024
Cash and cash equivalents	$	5,072	$	13,378
Restricted cash		3,841		3,841
Total cash, cash equivalents and restricted cash	$	8,913	$	17,219

(c) Estimated credit losses

The Company recognizes an allowance for credit losses at the time a receivable is recorded based on the Company’s estimate of expected credit losses, historical write-off experience, and current account knowledge, and adjusts this estimate over the life of the receivable as needed. The Company evaluates the aggregation and risk characteristics of a receivable pool and develops loss rates that reflect historical collections over the time horizon that the Company is exposed to credit risk, and payment terms or conditions that may materially affect future forecasts.

The Company performs ongoing credit evaluations of its customers’ financial condition when deemed necessary. The Company maintains an allowance for credit losses based on the expected collectability of all accounts receivable, which takes into consideration an analysis of historical bad debts, specific customer creditworthiness and current economic trends. The Company believes that its concentration of credit risk is limited because of the large number of customers, credit quality of the customer base, small account balances for most of these customers, and customer geographic diversification. The Company does not have any off-balance sheet credit exposure relating to its customers.

The following table summarizes the allowance for credit loss activity as of and for the periods ended (in thousands):

	Thirty-Nine Weeks Ended
	September 28,			September 29,
	2025			2024
Balance at beginning of year	$	(1,701	)	$	(9,846	)
Provision charged to earnings		(4,159	)		(4,204	)
Amounts written off, net of recoveries and other adjustments		1,048			1,041
Balance at end of period	$	(4,812	)	$	(13,009	)

(d) Contract liabilities

Contract liabilities consist of deferred revenue and customer advances, which represent consideration received from a customer prior to transferring control of goods or services to the customer under the terms of a sales contract. Total contract liabilities balances as of the respective dates are as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
Contract liabilities current and noncurrent		(14,974	)		(10,921	)

The Company typically invoices its customers upon completion of set milestones, generally upon installation of the solar energy system with the remaining balance invoiced upon passing final building inspection. Standard payment terms to customers range from 30 to 60 days. When the Company receives payment, or when such payment is unconditionally due from a customer prior to delivering goods or services to the customer under the terms of a customer agreement, the Company records this deferred revenue as a contract liability. Most installation projects are completed within 12-months. As such, a significant portion of the Company’s contract liabilities is reflected within current liabilities in the accompanying condensed consolidated balance sheets. Contract liabilities for installation projects expected to be completed beyond 12 months are classified as noncurrent obligations in the accompanying condensed consolidated balance sheets.

(e) Revenue recognition

Revenue is recognized for Residential Solar Installation and New Homes Business when a customer obtains control of promised products and services and the Company has satisfied its performance obligations which is the date by which substantially all of its design and installation is complete for a fully functioning solar power system to interconnect to the local power grid.

Installation includes the design of a solar energy system, the delivery of the components of the solar energy system (i.e., photovoltaic system, inverter, battery storage, etc.), installation services and services facilitating the connection of the solar energy system to the power grid. The Company accounts for these services as inputs to a combined output, resulting in a single service-based performance obligation.

The amount of revenue recognized reflects the consideration which the Company expects to be entitled to receive in exchange for the products and services. To achieve this core principle, the Company applies the following five steps:

Step 1. Identification of the contract(s) with a customer;

Step 2. Identification of the performance obligations in the contracts(s);

Step 3. Determination of the transaction price;

Step 4. Allocation of the transaction price to the performance obligations;

Step 5. Recognition of the revenue when, or as, the Company satisfies a performance obligation.

Residential Solar Installation revenues

The Company’s Residential Solar Installation segment sells products through a network of installing and non-installing dealers and resellers, as well as its internal sales team. The Company’s contracts with customers include three primary contract types:

●

Cash agreements – The Company contracts directly with homeowners who purchase the solar energy system and related services from the Company. Customers are invoiced on a billing schedule, where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

●

Financing partner agreements – In its financing partner agreements, the Company contracts directly with homeowners for the purchase of the solar energy system and related services. The Company refers the homeowner to a financing partner to finance the system, and the homeowner makes payments directly to the financing partner. The Company receives consideration from the financing partner on a billing schedule where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

●

Power purchase agreements and lease agreements – The Company contracts directly with a leasing partner to perform the solar energy system installation, and the homeowner will finance the system through a power purchase agreement (or lease), which is signed with the Company’s leasing partner. The Company considers the leasing partner to be its customer, as the Company does not contract directly with the homeowner and the leasing partner takes ownership of the system upon the completion of installation. The Company receives consideration from the leasing partner on a billing schedule where the majority of the transaction price is due upon installation with an additional payment due when the system passes inspection by the authority having jurisdiction.

New Homes Business revenues

The Company’s New Homes Business segment sells through a network of home builders as well as its internal sales team. The Company’s contracts with customers include two primary contract types:

●

Cash agreements – The Company contracts directly with homebuilders who purchase the solar energy system from the Company and are the customers in the transaction. The Company’s customers are invoiced upon the completion of installation.

●

Lease agreements – Prior to SunPower Debtor’s declaration of bankruptcy, certain homeowners had intended to lease a system from SunPower Debtors but were unable to consummate the transaction (as a result of SunPower Debtor’s declaration of bankruptcy). The in-process system inventory (installed on recently constructed homes) was acquired by the Company in connection with the SunPower Acquisition. The Company contracted directly with a leasing partner to facilitate the leasing of the system to the impacted homeowners. The Company considers the leasing partner to be its customer. Under the terms of the Company’s arrangement with the leasing partner, control is not transferred to the customer until the completed system is accepted by the customer. The Company receives consideration from the leasing partner following the acceptance of the system.

The Company’s performance obligation for both of these reportable segments is to design and install a fully functioning solar energy system. For all contract types (with the exception of New Homes Business Lease agreements), the Company recognizes revenue over time. The Company’s over-time revenue recognition begins when the solar power system is fully installed (as it is at this point that control of the asset begins to be transferred to the customer, and the customer retains the significant risks and rewards of ownership of the solar power system). The Company recognizes revenue using the input method based on direct costs to install the system and defers the costs of installation until such time that control of the asset transfers to the customer (installation). For New Homes Business Lease agreements, the Company considers the performance obligation to be satisfied at a point in time upon acceptance of the system by the customer.

Revenue is generally recognized at the transaction price contained within the agreement, net of the costs of financing, or other consideration paid to the customers that is not in exchange for a distinct good or service. The Company’s arrangements may contain clauses that can either increase or decrease the transaction price. Variable consideration is estimated at each measurement date at its most likely amount to the extent that it is probable that a significant reversal of cumulative revenue recognized will not occur and true-ups are applied prospectively as such estimates change.

The Company records deferred revenue for amounts invoiced that are received in advance of the provisioning of services. In certain contracts with customers, the Company arranges for a third-party financing partner to provide financing to the customer. The Company collects upfront from the financing partner and the customer will provide instalment payments to the financing partner. The Company records revenue in the amount received from the financing partner, net of any financing fees charged to the homeowner, which the Company considers to be a customer incentive. None of the Company’s contracts contain a significant financing component.

Dealer (previously identified as “Sunder” in the Original Report)

The Company earns revenue from contracts sold to customers for solar installations performed by third-party installation companies. The Company recognizes revenue at a point in time when Permission to Operate (“PTO”) is complete. The Company acts as an agent in these arrangements and records revenue on a net basis. The Company does not have significant financing components in its contracts. The Company does not provide warranty services and does not record a warranty reserve.

Costs to obtain and fulfill contracts

The Company’s costs to obtain and fulfill contracts, when recognized, associated with systems sales are expensed as sales commission and cost of revenue, respectively. In addition, incentives the Company provides to its customers, such as discounts and rebates, are recorded net to the revenue the Company has recognized on the solar power system.

Disaggregation of revenue

Refer to the table below for the Company’s revenue recognized (in thousands):

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
	(As Restated)				(As Restated)
Residential Solar Installation
Revenue recognized over time	$	35,179	$	5,536	$	110,199	$	20,068
Total Residential Solar Installation		35,179		5,536		110,199		20,068

New Homes Business
Revenue recognized over time		9,415		—		34,943		—
Revenue recognized at a point in time		19,087		—		63,067		—
Total New Homes Business		28,502		—		98,010		—

Dealer
Revenue recognized at a point in time		806		—		806		—
Total Dealer		806		—		806		—
Total revenue	$	64,487	$	5,536	$	209,015	$	20,068

Total revenue recognized over time	$	44,594	$	5,536	$	145,142	$	20,068
Total revenue recognized at a point in time		19,893		—		63,873		—

All revenue was generated in the United States.

Remaining performance obligations

The Company elected the practical expedient not to disclose the remaining performance obligations for contracts that are less than one year in length.

Incremental costs of obtaining customer contracts

Incremental costs of obtaining customer contracts consist of sales commissions, which are costs paid to third-party vendors who source residential customer contracts for the sale of solar energy systems by the Company. The Company defers sales commissions and recognizes expenses in accordance with the timing of the related revenue recognition. Amortization of deferred commissions is recorded as sales commissions in the accompanying unaudited condensed consolidated statements of operations and comprehensive loss. As of September 28, 2025 and December 29, 2024, deferred commissions were not material.

(f) Prepaid expenses and other current assets

The following table summarizes the components of prepaid expenses and other current assets:

	As of
	September 28,		December 29,
	2025		2024
		(As Restated)
Deferred costs	$	19,647	$	3,759
Other		93		4,447
Total prepaid expenses and other current assets	$	19,740	$	8,206

(g) Recent accounting pronouncements

Accounting pronouncements adopted

In July 2025, the FASB issued ASU 2025-05 “Measurement of Credit Losses for Accounts Receivable and Contract Assets” which provides an update to all entities with a practical expedient when estimating expected credit losses. This ASU is effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. Early adoption is permitted in both interim and annual reporting periods in which financial statements have not yet been issued or made available for issuance. The Company adopted ASU 2025-05 in the thirteen week period ended September 28, 2025. The impact of the adoption was not material to the condensed consolidated financial statements.

Accounting pronouncements not yet adopted

In December 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The objective of ASU 2023-09 is to enhance disclosures related to income taxes, including specific thresholds for inclusion within the tabular disclosure of income tax rate reconciliation and specified information about income taxes paid. ASU 2023-09 is effective for public companies starting in annual periods beginning after December 15, 2024. The Company will adopt this ASU in its annual report for the fiscal year ending December 28, 2025. The Company is assessing the impact of adopting this guidance on its consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires the disaggregation of certain expenses in the notes of the financial statements to provide enhanced transparency into the expense captions presented on the face of the income statement. The FASB subsequently issued ASU 2025-01 “Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date”, which amends the effective date of ASU 2024-03 to clarify that all public business entities are required to adopt the guidance in ASU 2024-03 in annual reporting periods beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. Early adoption of ASU 2024-03 is permitted. The Company is assessing the impact of adopting this guidance on its consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-04, Debt-Debt with Conversion and Other Options (Subtopic 470-20) (“ASU 2024-04”). The guidance in ASU 2024-04 clarifies the requirements related to accounting for the settlement of a debt instrument as an induced conversion. The standard is effective for fiscal years beginning after December 15, 2025, and interim periods within fiscal years beginning after December 15, 2025, with early adoption permitted as of the beginning of a reporting period if the entity has also adopted ASU 2020-06 for that period. The Company is currently evaluating the impact that the adoption of ASU 2024-04 may have on its consolidated financial statements.

In March 2024, the FASB issued ASU 2024-02 “Codification Improvements-Amendments to Remove References to the Concepts Statements”, which removes various references to concepts statements from the FASB Accounting Standards Codification. This ASU is effective for the Company beginning in the first quarter of fiscal year 2026, with early adoption permitted. The Company expects the new guidance will have an immaterial impact on its consolidated financial statements and intends to adopt the guidance when it becomes effective in the first quarter of fiscal year 2026.

In September 2025, the FASB issued ASU 2025-06 “Targeted improvements to the Accounting for Internal-Use Software” which is an update to remove all references to prescriptive and sequential software development stages (referred to as “project stages”). This ASU is effective for all entities for annual reporting periods beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. Early adoption is permitted as of the beginning of an annual reporting period. The Company is currently evaluating the impact that the adoption of ASU 2025-06 may have on its consolidated financial statements.

(h) Changes in related parties

Transactions with CRSEF Solis Holdings, LLC and its affiliates (“Carlyle”), have been disclosed as related party transactions until it ceased being a significant shareholder in the Company. Beginning in the thirteen week period ended June 29, 2025, transactions with Carlyle are no longer deemed related party transactions. The Company continues to engage in transactions Carlyle as it is a creditor of the Company’s 12.0% senior unsecured convertible notes. Refer to Note 10 – Borrowings and Derivative Liabilities for additional information.

Polar Multi-Strategy Master Fund (“Polar”) ceased to be a related party, and as a result, beginning in the thirteen week period ended June 29, 2025, transactions with Polar are no longer deemed related party transactions. Transactions previously reported with Polar have been disclosed as related party transactions. The Company continues to have a forward purchase agreement obligation with Polar.

Fair Value Measurements (Tables)

9 Months Ended

Sep. 28, 2025

Fair Value Measurements [Abstract]

Schedule of Financial Assets and Liabilities that are Measured at Fair Value, on a Recurring Basis

The following table sets forth the Company’s financial assets and liabilities that are measured at fair value, on a recurring basis (in thousands):

	As of September 28, 2025
	Level 1		Level 2		Level 3		Total
Financial Assets		(As Restated)

Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 Notes derivative liability	$	—	$	—	$	21,664	$	21,664
July 2024 Notes derivative liability – related parties		—		—		13,940		13,940
September 2024 derivative liability		—		—		52,708		52,708
September 2024 derivative liability – related parties		—		—		6,515		6,515
July 2025 Note derivative liability– related party		—		—		3,468		3,468
September 2025 Notes derivative liability		—		—		16,274		16,274
Forward purchase agreement liabilities		—		—		4,301		4,301
Public warrants		2,588		—		—		2,588
Private placement warrants		—		—		1,880		1,880
Working capital warrants		—		—		215		215
SAFE Agreement with related party		—		—		497		497
Total	$	2,588	$	—	$	121,462	$	124,050

	As of December 29, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 Notes derivative liability	$	—	$	—	$	13,563	$	13,563
July 2024 Notes derivative liability – related parties		—		—		21,127		21,127
September 2024 Notes derivative liability		—		—		55,474		55,474
September 2024 Notes derivative liability – related parties		—		—		6,958		6,958
Forward purchase agreement liabilities ⁽¹⁾		—		—		3,494		3,494
Public warrants		862		—		—		862
Private placement warrants		—		—		627		627
Working capital warrants		—		—		72		72
SAFE Agreement with related party		—		—		384		384
Total	$	862	$	—	$	101,699	$	102,561

⁽¹⁾	Includes $1.3 million due to related parties as of and December 29, 2024.

Schedule of Derivative Liability Valuation Inputs

The July 2024 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025			December 29, 2024
Coupon rate		12.0	%		12.0	%
Conversion rate		595.24			595.24
Conversion price	$	1.68		$	1.68
Common stock price	$	1.77		$	1.81
Risk-free rate		3.7	%		4.43	%
Volatility		73.9	%		62.0	%
Dividend yield		0.0	%		0.0	%

The September 2024 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025			December 29, 2024
Coupon rate		7.0	%		7.0	%
Conversion rate		467.84			467.84
Conversion price	$	2.14		$	2.14
Common stock price	$	1.77		$	1.81
Risk-free rate		3.7	%		4.43	%
Volatility		77.8	%		66.6	%
Dividend yield		0.0	%		0.0	%

The July 2025 Note derivative liability valuation included the following inputs:

	As of
	September 28, 2025
Coupon rate		12.0	%
Conversion rate		558.66
Conversion price	$	1.79
Common stock price	$	1.77
Risk-free rate		3.7	%
Volatility		75.1	%
Dividend yield		0.0	%

The September 2025 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025
Coupon rate		7.0	%
Conversion rate		467.84
Conversion price	$	2.14
Common stock price	$	1.77
Risk-free rate		3.7	%
Volatility		77.8	%
Dividend yield		0.0	%

Schedule of Measured at Fair Value

The Company valued the private placement and working capital warrants, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of
	September 28,			December 29,
	2025			2024
Expected term		2.81 years			3.56 years
Expected volatility		169.0	%		68.1	%
Risk-free rate		3.65	%		4.39	%
Expected dividend yield		0.00	%		0.00	%

The expected volatility is determined based on the historical equity volatility of comparable companies over a period that matches the simulation period, which included the following inputs:

	As of
	September 28,			December 29,
	2025			2024
VWAP	$	1.86		$	1.78
Simulation period		0.80 years			0.55 years
Risk-free rate		3.73	%		4.28	%
Volatility		84.8	%		117	%

Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis

The following table sets forth the Company’s financial liabilities that were not measured at fair value, on a non-recurring basis (in thousands):

	As of September 28 2025
	Principal amount ⁽¹⁾		Unamortized debt discount and debt issuance costs			Net carrying amount excluding capitalized interest ⁽¹⁾		Fair value
	(As Restated)
12.0% senior unsecured convertible notes
July 2024 Notes	$	36,576	$	(16,325	)	$	20,251	$	33,130
July 2024 Notes – related parties		18,000		(10,332	)		7,668		23,099
Subtotal July 2024 Notes		54,576		(26,657	)		27,919		56,229
July 2025 Note – related party		5,000		(3,627	)		1,373		6,250
Subtotal – 12% senior unsecured convertible notes		59,576		(30,284	)		29,292		62,479

7.0% senior unsecured convertible notes
September 2024 Notes		71,250		(56,099	)		15,151		77,744
September 2024 Notes – related parties		8,750		(6,934	)		1,816		9,548
Subtotal September 2024 Notes		80,000		(63,033	)		16,967		87,292
September 2025 Note		22,000		(18,932	)		3,068		25,090
Subtotal – 7% senior unsecured convertible notes		102,000		(81,965	)		20,035		112,382
Total (As Restated)	$	161,576	$	(112,249	)	$	49,327	$	174,861

	As of December 29, 2024
	Principal amount ⁽¹⁾		Unamortized debt discount and debt issuance costs			Net carrying amount excluding capitalized interest ⁽¹⁾		Fair value
12.0% senior unsecured convertible notes
July 2024 Notes	$	22,765	$	(10,874	)	$	11,891	$	21,390
July 2024 Notes – related parties		33,969		(16,877	)		17,092		33,323
Subtotal July 2024 Notes		56,734		(27,751	)		28,983		54,713

7.0% senior unsecured convertible notes
September 2024 Notes		71,800		(66,164	)		5,636		77,245
September 2024 Notes – related parties		8,000		(7,524	)		476		8,583
Subtotal September 2024 Notes		79,800		(73,688	)		6,112		85,828
Total	$	136,534	$	(101,439	)	$	35,095	$	140,541

(1)

Excludes capitalized interest (coupon interest, default interest and failure to file interest) of $11.0 million and $13.6 million as of September 28, 2025 and December 29, 2024, respectively, included in the July 2024 Notes.

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

Segment Information (Tables)

9 Months Ended

Sep. 28, 2025

Segment Information [Abstract]

Schedule of Financial Performance through Reportable Segments

This segment performs solar system installations for new home builders.

	Thirteen Weeks Ended
	September 28, 2025										September 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Dealer		Total			Residential Solar Installation			New Homes Business		Dealer		Total
	(As Restated)
Operating revenues	$	35,179		$	28,502		806	$	64,487		$	5,536		$	—	$	—	$	5,536

Less:
Cost of revenues⁽¹⁾		20,995			11,436		—					8,693			—		—
Sales commissions		7,479			55		636					7,270			—		—
Sales and marketing		4,171			1,648		—					1,093			—		—
General and administrative⁽²⁾		11,449			8,214		—					18,450			—		—
Operating (loss) income from continuing operations		(8,915	)		7,149		170		(1,596	)		(29,970	)		—		—		(29,970	)
Reconciliation of segment (loss) income from continuing operations before income taxes:
Unallocated amounts:
Interest expense									(6,738	)									(2,338	)
Interest income									—										86
Other expense, net									(4,256	)									(65,684	)
Gain on extinguishment of debt									—										19,948
Loss from continuing operations before income taxes								$	(12,590	)								$	(77,958	)

⁽¹⁾

For the thirteen weeks ended September 28, 2025, depreciation and amortization expense was $0.4 million for the Residential Solar Installation reportable segment.

⁽²⁾

For the thirteen weeks ended September 28, 2025, depreciation and amortization expense was $0.6 million and $0.3 million for the Residential Solar Installation and New Homes Business reportable segments, respectively. For the thirteen weeks ended September 29, 2024, depreciation and amortization expense was $0.3 million for the Residential Solar Installation reportable segment.

	Thirty-Nine Weeks Ended
	September 28, 2025										September 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Dealer		Total			Residential Solar Installation			New Homes Business		Dealer		Total
	(As Restated)
Operating revenues	$	110,199		$	98,010		806	$	209,015		$	20,068		$	—	$	—	$	20,068

Less:
Cost of revenues⁽¹⁾		68,622			57,177		—					21,834			—		—
Sales commissions		22,882			1,391		636					11,691			—		—
Sales and marketing		19,358			2,147		—					3,762			—		—
General and administrative⁽²⁾		32,446			18,599		—					29,789			—		—
Operating (loss) income from continuing operations		(33,109	)		18,696		170		(14,243	)		(47,008	)		—		—		(47,008	)
Reconciliation of segment (loss) income from continuing operations before income taxes:
Unallocated amounts:
Interest expense									(19,151	)									(8,230	)
Interest income									3										102
Other expense, net									(1,724	)									(66,234	)
Gain on extinguishment of debt									—										19,948
Loss from continuing operations before income taxes								$	(35,115	)								$	(101,422	)

⁽¹⁾

In the thirty-nine weeks ended September 28, 2025, depreciation and amortization expense was $1.2 million for the Residential Solar Installation reportable segment. In the thirty-nine weeks ended September 29, 2024, depreciation and amortization expense was $1.0 million for the Residential Solar Installation reportable segment.

⁽²⁾

In the thirty-nine weeks ended September 28, 2025, depreciation and amortization expense was $2.2 million and $0.9 million for the Residential Solar Installation and New Homes Business reportable segments, respectively. In the thirty-nine weeks ended September 29, 2024, depreciation and amortization expense was $1.0 million for the Residential Solar Installation reportable segment.

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements - Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 28, 2025	Sep. 28, 2025
As Previously Reported [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	$ (107,184)	$ (97,539)
Exercise of common stock options	216	775
Stock-based compensation	4,174	8,205
Vesting of restricted stock units
Exercise of common stock warrants		60
Issuance of common stock	7,382	7,382
Net loss	(16,904)	(31,199)
Balance	(112,316)	(112,316)
Adjustments [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	(6,508)
Exercise of common stock options
Stock-based compensation	(2,051)	(329)
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss	3,214	(5,016)
Balance	(5,345)	(5,345)
As Restated [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	(113,692)	(97,539)
Exercise of common stock options	216	775
Stock-based compensation	2,123	7,876
Vesting of restricted stock units
Exercise of common stock warrants		60
Issuance of common stock	7,382	7,382
Net loss	(13,690)	(36,215)
Balance	(117,661)	(117,661)
Common Stock [Member] \| As Previously Reported [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	$ 14	$ 14
Balance (in Shares)	82,325,722	73,784,645
Exercise of common stock options
Exercise of common stock options (in Shares)	198,096	731,671
Stock-based compensation
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	2,310,811	4,318,313
Exercise of common stock warrants
Exercise of common stock warrants (in Shares)		6,000,000
Issuance of common stock
Issuance of common stock (in Shares)	4,333,334	4,333,334
Net loss
Balance	$ 14	$ 14
Balance (in Shares)	89,167,963	89,167,963
Common Stock [Member] \| Adjustments [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance
Balance (in Shares)	(136,253)
Exercise of common stock options
Exercise of common stock options (in Shares)
Stock-based compensation
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	(317,452)	(453,705)
Exercise of common stock warrants
Exercise of common stock warrants (in Shares)
Issuance of common stock
Issuance of common stock (in Shares)
Net loss
Balance
Balance (in Shares)	(453,705)	(453,705)
Common Stock [Member] \| As Restated [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	$ 14	$ 14
Balance (in Shares)	82,189,469	73,784,645
Exercise of common stock options
Exercise of common stock options (in Shares)	198,096	731,671
Stock-based compensation
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	1,993,359	3,864,608
Exercise of common stock warrants
Exercise of common stock warrants (in Shares)		6,000,000
Issuance of common stock
Issuance of common stock (in Shares)	4,333,334	4,333,334
Net loss
Balance	$ 14	$ 14
Balance (in Shares)	88,714,258	88,714,258
Additional Paid-in Capital [Member] \| As Previously Reported [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	$ 318,311	$ 313,661
Exercise of common stock options	216	775
Stock-based compensation	4,174	8,205
Vesting of restricted stock units
Exercise of common stock warrants		60
Issuance of common stock	7,382	7,382
Net loss
Balance	330,083	330,083
Additional Paid-in Capital [Member] \| Adjustments [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	1,722
Exercise of common stock options
Stock-based compensation	(2,051)	(329)
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss
Balance	(329)	(329)
Additional Paid-in Capital [Member] \| As Restated [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	320,033	313,661
Exercise of common stock options	216	775
Stock-based compensation	2,123	7,876
Vesting of restricted stock units
Exercise of common stock warrants		60
Issuance of common stock	7,382	7,382
Net loss
Balance	329,754	329,754
Accumulated Deficit [Member] \| As Previously Reported [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	(425,674)	(411,379)
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss	(16,904)	(31,199)
Balance	(442,578)	(442,578)
Accumulated Deficit [Member] \| Adjustments [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	(8,230)
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss	3,214	(5,016)
Balance	(5,016)	(5,016)
Accumulated Deficit [Member] \| As Restated [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	(433,904)	(411,379)
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss	(13,690)	(36,215)
Balance	(447,594)	(447,594)
Accumulated Other Comprehensive Income [Member] \| As Previously Reported [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	165	165
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss
Balance	165	165
Accumulated Other Comprehensive Income [Member] \| Adjustments [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss
Balance
Accumulated Other Comprehensive Income [Member] \| As Restated [Member]
Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) [Line Items]
Balance	165	165
Exercise of common stock options
Stock-based compensation
Vesting of restricted stock units
Exercise of common stock warrants
Issuance of common stock
Net loss
Balance	$ 165	$ 165

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements (Tables)

9 Months Ended

Sep. 28, 2025

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements [Abstract]

Schedule of Unaudited Condensed Consolidated Balance Sheet

Restated Unaudited Condensed Consolidated Balance Sheet

		As of September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated
ASSETS
Current assets:
Cash and cash equivalents		$	5,072		$	—		$	5,072
Accounts receivable, net	A		80,753			(7,706	)		73,047
Inventories	B		8,694			(124	)		8,570
Prepaid expenses and other current assets	C		20,830			(1,090	)		19,740
Total current assets			115,349			(8,920	)		106,429
Restricted cash			3,841			—			3,841
Property and equipment, net			3,670			—			3,670
Operating lease right-of-use assets			2,528			—			2,528
Intangible assets, net			38,956			—			38,956
Goodwill	D		42,911			(636	)		42,275
Other noncurrent assets			1,085			—			1,085
Total assets		$	208,340		$	(9,556	)	$	198,784

LIABILITIES AND STOCKHOLDERS’ DEFICIT
Current liabilities:
Accounts payable		$	19,857		$	—		$	19,857
Accrued expenses and other current liabilities	E		59,271			(2,021	)		57,250
Notes payable to related parties			21,500			—			21,500
Current portion of notes payable	F		—			2,786			2,786
Contract liabilities	G		9,713			3,548			13,261
SAFE Agreement with related party			497			—			497
Forward purchase agreement liabilities with related parties			—			—			—
Forward purchase agreement liabilities			4,301			—			4,301
Total current liabilities			115,139			4,313			119,452
Warranty provision, noncurrent			2,140			—			2,140
Warrant liability			4,683			—			4,683
Contract liabilities, noncurrent			1,713			—			1,713
Notes payable and derivative liabilities, net of current	H		148,205			(8,751	)		139,454
Notes payable and derivative liabilities with related parties, net of current	H		34,572			227			34,799
Operating lease liabilities, net of current portion			1,335			—			1,335
Other long-term liabilities			12,869			—			12,869
Total liabilities			320,656			(4,211	)		316,445

Commitments and contingencies

Stockholders’ deficit:
Common stock			14			—			14
Additional paid-in capital	I		330,083			(329	)		329,754
Accumulated other comprehensive income			165			—			165
Accumulated deficit			(442,578	)		(5,016	)		(447,594	)
Total stockholders’ deficit			(112,316	)		(5,345	)		(117,661	)
Total liabilities and stockholders’ deficit		$	208,340		$	(9,556	)	$	198,784

Schedule of Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss)

Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss)

		Thirteen Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated

Revenues	J	$	70,005		$	(5,518	)	$	64,487
Cost of revenues	K		37,965			(5,534	)		32,431
Gross profit			32,040			16			32,056
Operating expenses:
Sales commissions	L		7,534			636			8,170
Sales and marketing	M		6,467			(648	)		5,819
General and administrative	N		21,483			(1,820	)		19,663
Total operating expenses			35,484			(1,832	)		33,652
Loss from continuing operations			(3,444	)		1,848			(1,596	)
Interest expense	O		(8,104	)		1,366			(6,738	)
Interest income			—			—			—
Other expense, net			(4,256	)		—			(4,256	)
Total other expense, net			(12,360	)		1,366			(10,994	)
Loss from continuing operations before income taxes			(15,804	)		3,214			(12,590	)
Income tax provision			—			—			—
Net loss from continuing operations			(15,804	)		3,214			(12,590	)
Net loss from discontinued operations, net of taxes			(1,100	)		—			(1,100	)
Net loss			(16,904	)		3,214			(13,690	)
Comprehensive loss, net of tax		$	(16,904	)	$	3,214		$	(13,690	)
Net loss from continuing operations per share attributable to common stockholders, basic and diluted		$	(0.19	)	$	0.04		$	(0.15	)
Net loss from discontinued operations per share attributable to common stockholders, basic and diluted		$	(0.01	)	$	—		$	(0.01	)
Net loss per share attributable to common stockholders, basic and diluted		$	(0.20	)	$	0.04		$	(0.16	)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	Q		84,904,228			(310,584	)		84,593,644

Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss)

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated

Revenues	J	$	220,269		$	(11,254	)	$	209,015
Cost of revenues	K		126,970			(1,171	)		125,799
Gross profit			93,299			(10,083	)		83,216
Operating expenses:
Sales commissions	L		24,273			636			24,909
Sales and marketing	M		21,764			(259	)		21,505
General and administrative	N		52,382			(1,337	)		51,045
Total operating expenses			98,419			(960	)		97,459
Loss from continuing operations			(5,120	)		(9,123	)		(14,243	)
Interest expense	O		(23,258	)		4,107			(19,151	)
Interest income			3			—			3
Other expense, net			(1,724	)		—			(1,724	)
Total other expense, net			(24,979	)		4,107			(20,872	)
Loss from continuing operations before income taxes			(30,099	)		(5,016	)		(35,115	)
Income tax provision			—			—			—
Net loss from continuing operations			(30,099	)		(5,016	)		(35,115	)
Net loss from discontinued operations, net of taxes			(1,100	)		—			(1,100	)
Net loss			(31,199	)		(5,016	)		(36,215	)
Comprehensive loss, net of tax		$	(31,199	)	$	(5,016	)	$	(36,215	)
Net loss from continuing operations per share attributable to common stockholders, basic and diluted		$	(0.37	)	$	(0.06	)	$	(0.43	)
Net loss from discontinued operations per share attributable to common stockholders, basic and diluted		$	(0.01	)	$	—		$	(0.01	)
Net loss per share attributable to common stockholders, basic and diluted		$	(0.38	)	$	(0.06	)	$	(0.44	)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted	Q		82,036,790			(43,700	)		81,993,090

Schedule of Unaudited Condensed Consolidated Statement of Stockholders’ Deficit

Restated Unaudited Condensed Consolidated Statement of Stockholders’ Deficit

		Thirteen Weeks Ended September 28, 2025
	Explanatory	Common Stock					Additional Paid-in			Accumulated			Accumulated Other Comprehensive		Total Stockholders’
	Notes	Shares			Amount		Capital			Deficit			Income		Deficit
As Previously Reported
Balance as of June 29, 2025			82,325,722		$	14	$	318,311		$	(425,674	)	$	165	$	(107,184	)
Exercise of common stock options			198,096			—		216			—			—		216
Stock-based compensation			—			—		4,174			—			—		4,174
Vesting of restricted stock units			2,310,811			—		—			—			—		—
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(16,904	)		—		(16,904	)
Balance as of September 28, 2025			89,167,963		$	14	$	330,083		$	(442,578	)	$	165	$	(112,316	)

Adjustments
Balance as of June 29, 2025	I		(136,253	)	$	—	$	1,722		$	(8,230	)	$	—	$	(6,508	)
Exercise of common stock options			—			—		—			—			—		—
Stock-based compensation	I		—			—		(2,051	)		—			—		(2,051	)
Vesting of restricted stock units	I		(317,452	)		—		—			—			—		—
Issuance of common stock			—			—		—			—			—		—
Net loss			—			—		—			3,214			—		3,214	)
Balance as of September 28, 2025			(453,705	)	$	—	$	(329	)	$	(5,016	)	$	—	$	(5,345	)

(As Restated)
Balance as of June 29, 2025			82,189,469		$	14	$	320,033		$	(433,904	)	$	165	$	(113,692	)
Exercise of common stock options			198,096			—		216			—			—		216
Stock-based compensation			—			—		2,123			—			—		2,123
Vesting of restricted stock units			1,993,359			—		—			—			—		—
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(13,690	)		—		(13,690	)
Balance as of September 28, 2025			88,714,258		$	14	$	329,754		$	(447,594	)	$	165	$	(117,661	)

Restated Unaudited Condensed Consolidated Statement of Stockholders’ Deficit

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory	Common Stock					Additional Paid-in			Accumulated			Accumulated Other Comprehensive		Total Stockholders’
	Notes	Shares			Amount		Capital			Deficit			Income		Deficit
As Previously Reported
Balance as of December 29, 2024			73,784,645		$	14	$	313,661		$	(411,379	)	$	165	$	(97,539	)
Exercise of common stock options			731,671			—		775			—			—		775
Stock-based compensation			—			—		8,205			—			—		8,205
Vesting of restricted stock units			4,318,313			—		—			—			—		—
Exercise of common stock warrants			6,000,000			—		60			—			—		60
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(31,199	)		—		(31,199	)
Balance as of September 28, 2025			89,167,963		$	14	$	330,083		$	(442,578	)	$	165	$	(112,316	)

Adjustments
Balance as of December 29, 2024			—		$	—	$	—		$	—		$	—	$	—
Exercise of common stock options			—			—		—			—			—		—
Stock-based compensation	I		—			—		(329	)		—			—		(329	)
Vesting of restricted stock units	I		(453,705	)		—		—			—			—		—
Exercise of common stock warrants			—			—		—			—			—		—
Issuance of common stock			—			—		—			—			—		—
Net loss			—			—		—			(5,016	)		—		(5,016	)
Balance as of September 28, 2025			(453,705	)	$	—	$	(329	)	$	(5,016	)	$	—	$	(5,345	)

(As Restated)
Balance as of December 29, 2024			73,784,645		$	14	$	313,661		$	(411,379	)	$	165	$	(97,539	)
Exercise of common stock options			731,671			—		775			—			—		775
Stock-based compensation			—			—		7,876			—			—		7,876
Vesting of restricted stock units			3,864,608			—		—			—			—		—
Exercise of common stock warrants			6,000,000			—		60			—			—		60
Issuance of common stock			4,333,334			—		7,382			—			—		7,382
Net loss			—			—		—			(36,215	)		—		(36,215	)
Balance as of September 28, 2025			88,714,258		$	14	$	329,754		$	(447,594	)	$	165	$	(117,661	)

Schedule of Restated Unaudited Condensed Consolidated Statement of Cash Flows

Restated Unaudited Condensed Consolidated Statement of Cash Flows

		Thirty-Nine Weeks Ended September 28, 2025
	Explanatory Notes	As Previously Reported			Restatement Adjustments			As Restated
Cash flows from operating activities
Net loss	J,K,L,M,N,O	$	(31,199	)	$	(5,016	)	$	(36,215	)
Net loss from discontinued operations, net of income taxes			(1,100	)		—			(1,100	)
Net loss from continuing operations			(30,099	)		(5,016	)		(35,115	)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities:
Stock-based compensation	I		8,205			(329	)		7,876
Non-cash lease expense			826			—			826
Depreciation and amortization			4,293			—			4,293
Provision for credit losses			4,159			—			4,159
Change in fair value of SAFE Agreements with related party			113			—			113
Change in fair value of forward purchase agreement liabilities			807			—			807
Change in fair value of derivative liabilities			(1,639	)		—			(1,639	)
Change in fair value of warrant liabilities			3,122			—			3,122
Amortization of debt issuance costs	H		14,259			(2,431	)		11,828
Non-cash income			(474	)		—			(474	)
Loss on impairments and disposals			140			—			140
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	A		(32,747	)		7,706			(25,041	)
Inventories	B		34,098			1,244			34,222
Prepaid expenses and other current assets	C		(12,462	)		1,090			(11,372	)
Other noncurrent assets			95			—			95
Accounts payable			11,692			—			11,692
Accrued expenses and other liabilities	E,P		(6,360	)		(5,171	)		(11,531	)
Operating lease liabilities			(866	)		—			(866	)
Contract liabilities	G		(10,568	)		4,184			(6,384	)
Net cash used in operating activities			(13,406	)		157			(13,249	)
Cash flows from investing activities
Cash paid for acquisitions, net of cash acquired			(20,689	)		—			(20,689	)
Net cash used in investing activities			(20,689	)		—			(20,689	)
Cash flows from financing activities
Proceeds from issuance of convertible notes			20,000			—			20,000
Proceeds from issuance of convertible notes due to related parties			5,000			—			5,000
Payment of debt issuance costs			(200	)		—			(200	)
Finance lease payments			(1,528	)		—			(1,528	)
Proceeds from issuance of common stock			1,682			—			1,682
Proceeds from exercise of common stock options			775			—			775
Proceeds from exercise of warrant for common stock			60			—			60
Proceeds from investor financing deposit from a related party	P		—			2,000			2,000
Principal repayment of notes payable	H		—			(2,157	)		(2,157	)
Net cash provided by financing activities			25,789			(157	)		25,632
Effect of exchange rate changes			—			—			—
Net decrease in cash, cash equivalents and restricted cash			(8,306	)		—			(8,306	)
Cash, cash equivalents, and restricted cash at beginning of period			17,219			—			17,219
Cash, cash equivalents and restricted cash at end of period		$	8,913		$	—		$	8,913

Segment Information - Schedule of Financial Performance through Reportable Segments (Details) - Reportable Segment [Member] - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Sep. 28, 2025

Sep. 29, 2024

Schedule of Financial Performance through Reportable Segments [Line Items]

Operating revenues

$ 64,487

$ 5,536

$ 209,015

$ 20,068

Less:

Operating (loss) income from continuing operations

(1,596)

(29,970)

(14,243)

(47,008)

Reconciliation of segment (loss) income from continuing operations before income taxes:

Interest expense

(6,738)

(2,338)

(19,151)

(8,230)

Interest income

102

Other expense, net

(4,256)

(65,684)

(1,724)

(66,234)

Gain on extinguishment of debt

19,948

(Loss) from continuing operations before income taxes

(12,590)

(77,958)

(35,115)

(101,422)

Residential Solar Installation [Member]

Schedule of Financial Performance through Reportable Segments [Line Items]

Operating revenues

35,179

5,536

110,199

20,068

Less:

Cost of revenues

20,995

^[1]

8,693

^[1]

68,622

^[2]

21,834

^[2]

Sales commissions

7,479

7,270

22,882

11,691

Sales and marketing

4,171

1,093

19,358

3,762

General and administrative

^[3]

11,449

^[1]

18,450

^[1]

32,446

^[4]

29,789

^[4]

Operating (loss) income from continuing operations

(8,915)

(29,970)

(33,109)

(47,008)

Reconciliation of segment (loss) income from continuing operations before income taxes:

Interest expense

Interest income

Other expense, net

Gain on extinguishment of debt

New Homes Business [Member]

Schedule of Financial Performance through Reportable Segments [Line Items]

Operating revenues

28,502

98,010

Less:

Cost of revenues

11,436

^[1]

57,177

^[2]

Sales commissions

1,391

Sales and marketing

1,648

2,147

General and administrative

^[3]

8,214

^[1]

18,599

^[4]

Operating (loss) income from continuing operations

7,149

18,696

Reconciliation of segment (loss) income from continuing operations before income taxes:

Interest expense

Interest income

Other expense, net

Gain on extinguishment of debt

(Loss) from continuing operations before income taxes

Sunder [Member]

Schedule of Financial Performance through Reportable Segments [Line Items]

Operating revenues

806

Less:

Cost of revenues

^[1]

^[2]

Sales commissions

636

Sales and marketing

General and administrative

^[3]

^[1]

^[4]

Operating (loss) income from continuing operations

170

Reconciliation of segment (loss) income from continuing operations before income taxes:

Interest expense

Interest income

Other expense, net

Gain on extinguishment of debt

(Loss) from continuing operations before income taxes

[1]	For the thirteen weeks ended September 28, 2025, depreciation and amortization expense was $0.4 million for the Residential Solar Installation reportable segment.
[2]	In the thirty-nine weeks ended September 28, 2025, depreciation and amortization expense was $1.2 million for the Residential Solar Installation reportable segment. In the thirty-nine weeks ended September 29, 2024, depreciation and amortization expense was $1.0 million for the Residential Solar Installation reportable segment.
[3]	For the thirteen weeks ended September 28, 2025, depreciation and amortization expense was $0.6 million and $0.3 million for the Residential Solar Installation and New Homes Business reportable segments, respectively. For the thirteen weeks ended September 29, 2024, depreciation and amortization expense was $0.3 million for the Residential Solar Installation reportable segment.
[4]	In the thirty-nine weeks ended September 28, 2025, depreciation and amortization expense was $2.2 million and $0.9 million for the Residential Solar Installation and New Homes Business reportable segments, respectively. In the thirty-nine weeks ended September 29, 2024, depreciation and amortization expense was $1.0 million for the Residential Solar Installation reportable segment.

Fair Value Measurements - Schedule of Measured at Fair Value (Details)	Sep. 28, 2025	Dec. 29, 2024
Expected term [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	2.81	3.56
Volatility [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	169	68.1
Volatility [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	84.8	117
Risk-free rate [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	3.65	4.39
Risk-free rate [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	3.73	4.28
Expected dividend yield [Member] \| Private Placement and Working Capital Warrants [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	0	0
VWAP [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	1.86	1.78
Simulation period [Member] \| Forward Purchase Agreement Liabilities [Member]
Schedule of Measured at Fair Value [Line Items]
Derivative liability, measurement inputs	0.8	0.55

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Sep. 28, 2025	Dec. 29, 2024
Accrued Expenses and Other Current Liabilities [Abstract]
Accrued interest	$ 1.3	$ 2.2
Other receivables	$ 2.0
Percentage of total current liabilities	5.00%

Related Party Transactions

9 Months Ended

Sep. 28, 2025

Related Party Transactions

(17) Related Party Transactions

Refer to the following notes to the Company’s unaudited condensed consolidated financial statements for details regarding the related party transactions entered into by the Company; Note 1(a) – Organization – Description of Business; Note 3(h) – Basis of Presentation and Summary of Significant Accounting Policies – Changes in related parties; Note 5 – Fair Value Measurements; Note 7 – Accrued Expenses and Other Current Liabilities; Note 8 – Other Expense, Net; Note 9 – Capital Stock; Note 10 – Borrowings and Derivative Liabilities, and Note 11 – SAFE Agreements. All other related party transactions are described herein.

The Company determined that SameDay Solar became a related party to the Company during fiscal year 2024. Cost of revenue with SameDay Solar was $0.1 million and $0.5 million in the thirteen week periods ended September 28, 2025 and September 29, 2024, respectively. Cost of revenue with SameDay Solar was $0.4 million and $0.5 million in the thirty-nine week periods ended September 28, 2025 and September 29, 2024, respectively.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 28, 2025

Commitments and Contingencies [Abstract]

Schedule of Warranty Provision

Activity by period relating to the Company’s warranty provision was as follows (in thousands):

	Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024
Warranty provision, beginning of period	$	5,968		$	4,849
Accruals for new warranties issued		3,238			830
Settlements, other		(5,837	)		(932	)
Warranty provision, end of period	$	3,369		$	4,747
Warranty provision, current	$	1,229		$	1,425
Warranty provision, noncurrent		2,140			3,322

Other Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Other Intangible Assets (Details) - USD ($) $ in Millions	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Other Intangible Assets [Abstract]
Aggregate amortization expense for intangible assets	$ 0.7	$ 0.0	$ 2.1	$ 0.0

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

+ References

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-Section 45
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-Topic 230
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+ Details

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Allowance for Credit Loss (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2025	Sep. 28, 2024
Schedule of Allowance for Credit Loss [Abstract]
Balance at beginning of year	$ (1,701)	$ (9,846)
Provision charged to earnings	(4,159)	(4,204)
Amounts written off, net of recoveries and other adjustments	1,048	1,041
Balance at end of period	$ (4,812)	$ (13,009)

Borrowings and Derivative Liabilities

9 Months Ended

Sep. 28, 2025

Borrowings and Derivative Liabilities [Abstract]

Borrowings and Derivative Liabilities

(10) Borrowings and Derivative Liabilities

The Company’s borrowings and derivative liabilities consist of the following (in thousands):

	As of
	September 28,			December 29,
	2025			2024
	(As Restated)
12.0% senior unsecured convertible notes
July 2024 Notes	$	33,394		$	17,965
July 2024 Notes derivative liability		21,664			13,563
July 2024 Notes – related parties		7,668			24,632
July 2024 derivative liability – related parties		13,940			21,127
July 2025 Note – related party		1,373			—
July 2025 Note – derivative liability – related party		3,468			—

7.0% senior unsecured convertible notes
September 2024 Notes		15,151			5,636
September 2024 Notes derivative liability		52,708			55,474
September 2024 Notes – related party		1,816			476
September 2024 Notes – derivative liability – related party		6,515			6,958
September 2025 Notes		3,068			—
September 2025 Notes derivative liability		16,274			—

Note payable to Seller – related party		20,000			—
Loan with related party		1,500			1,500
Total notes payable		198,539			147,331
Less current portion		(24,286	)		(1,500	)
Notes payable and convertible notes, net of current portion	$	174,253		$	145,831

As classified in the unaudited condensed consolidated balance sheets
Notes payable to related parties		21,500			1,500
Current portion of notes payable		2,786
Notes payable and derivative liabilities		139,454			92,638
Notes payable and derivative liabilities with related parties, net of current portion		34,799			53,193
Total notes payable	$	198,539		$	147,331

12.0% senior unsecured convertible notes

July 2024 Notes

In July 2024, the Company issued $46.0 million of senior unsecured convertible notes (“July 2024 Notes”) consisting of $28.0 million in cash proceeds and $18.0 million arising from an exchange of debt (“Debt Exchange”) as described below under Exchange Agreement. Cash proceeds of $28.0 million included $18.0 million from the Rodgers Massey Revocable Trust (“Rodgers Revocable Trust”), a related party. The $18.0 million exchange of debt included $10.0 million issued to Carlyle. Carlyle was deemed to be a related party in the fiscal year ended December 29, 2024 and in the thirteen week period ended March 30, 2025. During the thirteen week period ended June 29, 2025, Carlyle was no longer deemed a related party with the Company. Refer to Note 3 (h) – Basis of Presentation and Summary of Significant Accounting Policies – “Changes in related parties” for details.

The July 2024 Notes bear interest at 12.0% per annum, and the principal is payable in full at maturity on July 1, 2029. The interest is payable in cash on January 1 and July 1 of each year, beginning on July 1, 2025. The interest rate increases by 3% in the event of default. The conversion rate of the July 2024 Notes is initially equal to 595.2381 shares of common stock per $1,000 of principal amount due under the July 2024 Notes. Holders of July 2024 Notes may convert at any time. The July 2024 Notes may be declared due and payable at the option of the holder upon an event of default and upon a qualifying change of control event. The conversion option was required to be bifurcated as a derivative liability, and the Company recorded a derivative liability of $28.7 million on the issuance date. Of this amount $17.5 million was recognized as a debt discount to the $28.0 million cash proceeds and $11.2 million associated with the Debt Exchange was recognized as an expense in the calculation of the Company’s “Gain on the Troubled Debt Restructuring” on the Company’s consolidated statement of operations and comprehensive loss in the year ended December 29, 2024.

In connection with the Debt Exchange, the Company issued the Cantor Warrant, as described in Note 9 – Capital Stock, for shares of the Company’s common stock. At issuance, the Cantor Warrant had a fair value of $1.4 million, of which $0.9 million was recorded as a debt discount, and $0.5 million was included in the calculation of the Company’s “Gain on the Troubled Debt Restructuring” on the Company’s consolidated statement of operations and comprehensive loss in the year ended December 29, 2024, as discussed below in the Exchange Agreement.

The effective interest rate on the July 2024 Notes cash proceeds of $28.0 million approximates 45%. Coupon interest, default interest and failure to file interest on the $18.0 million Debt Exchange were capitalized as part of the July 2024 Notes. Accordingly, the effective interest rate on the $18.0 million arising from the Debt Exchange is nil as of December 28, 2025.

There are no financial covenants. The July 2024 Notes are not in default. However, due to the delayed filing of its Form 10-K for the year ended December 29, 2024, the Company was required to accrue incremental interest of 0.5% beginning April 16, 2025 through April 30, 2025, the date upon which the Form 10-K was filed.

There are no financial covenants. The July 2024 Notes are not in default. However, due to the Company’s delayed filing of its Form 10-K for the year ended December 29, 2024, the Company was required to accrue incremental interest of 0.5% beginning April 16, 2025 through April 30, 2025, the date upon which the Form 10-K was filed. Due to the Company’s delayed filing of its Form 10Q for the third quarter ended September 28, 2025 (“Q3 2025 Form 10Q”), the Company was required to accrue incremental interest of 0.5% beginning November 17, 2025, through December 19, 2025, the date upon which the Q3 2025 Form 10Q was filed.

The carrying amount of the convertible July 2024 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
July 2024 Notes	$	67,719		$	70,348
Less Unamortized debt discount		(26,657	)		(27,751	)
Total carrying amount of July 2024 Notes	$	41,062		$	42,597

For the thirteen week period ended September 28, 2025 total interest expense was $1.2 million, of which interest expense and amortization of debt discount and issuance costs were $0.8 million and $0.4 million, respectively. Of these amounts, related party interest expense and amortization of debt discount and issuance costs were $0.5 million and $0.3 million, respectively. For the thirty-nine week period ended September 28, 2025 total interest expense was $3.6 million of which interest expense and amortization of debt discount and issuance costs were $2.5 million and $1.1 million, respectively. Of these amounts related party interest expense and amortization of debt discount and issuance costs were $1.6 million and $0.7 million, respectively.

For the thirteen and thirty-nine week periods ended September 29, 2024, total interest expense was $1.7 million, of which interest expense and amortization of debt discount and issuance costs were $0.8 million and $0.9 million, respectively. Of these amounts, related party interest expense and amortization of debt discount and issuance costs were $0.5 million and $0.5 million, respectively.

July 2025 Note – related party

On July 10, 2025, the Company issued a convertible promissory note (the “July 2025 Note”) to the Rodgers Revocable Trust in exchange for $5.0 million of proceeds received by the Company.

The July 2025 Note has a stated interest rate of 12.0%. The July 2025 Note is a general unsecured obligation of the Company and will mature on July 1, 2029, unless earlier converted, redeemed or repurchased. Interest on the July 2025 Note will accrue at a rate of 12.00% per year from the date of issuance and will be payable semiannually in arrears on January 1 and July 1 of each year, beginning on January 1, 2026. The July 2025 Note is convertible at the option of the holder at any time prior to the payment of the payment of the principal amount of the July 2025 Note in full. Upon conversion of the July 2025 Note, the Company will satisfy its conversion obligation by delivering shares of common stock and paying cash in respect of any fractional shares. The conversion rate of the July 2025 Note is initially equal to 558.6592 shares of common stock per $1,000 principal amount due under the July 2025 Note. The conversion rate is subject to adjustment from time to time pursuant to the terms of the July 2025 Note. The conversion option related to the July 2025 Note was required to be bifurcated as a derivative liability, and the Company recorded a derivative liability of $3.7 million on the issuance date. The July 2025 Note has an effective interest rate of 62.8%.

The carrying amount of the convertible July 2025 Note, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
July 2025 Note – related party	$	5,000		$	—
Less Unamortized debt discount		(3,627	)		—
Total carrying amount of July 2025 Note – related party	$	1,373		$	—

For the thirteen and thirty-nine week periods ended September 28, 2025 total interest expense was $0.2 million, of which both interest expense and amortization of debt discount and issuance costs were less than $0.1 million.

7.0% senior unsecured convertible notes

On September 16, 2024, the Company entered into an Indenture agreement with U.S. Bank Trust Company, National Association, as trustee (the “Indenture”), for the issuance of 7.0% senior unsecured convertible notes (“7.0% Senior Notes”). The 7.0% Senior Notes issued under the Indenture bear interest at 7.0% per annum, and the interest is payable semiannually in arrears on January 1 and July 1 of each year beginning on January 1, 2025. The principal is payable in full at maturity on July 1, 2029. The 7.0% Senior Notes are convertible into shares of the Company’s common stock at the option of the holder at a conversion rate of $2.14 per common share. Holders of the 7.0% Senior Notes may convert at any time. The 7.0% Senior Notes may be declared due and payable at the option of the holder upon an event of default and upon a qualifying change of control event. There are no financial covenants. As described below, the Company has issued multiple tranches under this Indenture.

September 2024 Notes

In September 2024, the Company issued $66.8 million of the 7.0% Senior Notes to various parties (the “September 2024 Notes”), $4.0 million of which were issued to Rodgers Family Freedom and Free Markets Charitable Trust (“Massey Charitable Trust”), a related party and $4.0 million were issued to Rodgers Revocable Trust (collectively with Massey Charitable Trust, “Massey Trusts”), also a related party. In addition, effective December 30, 2024, an additional $0.75 million of the September 2024 Notes was deemed to be with a related party. The conversion option related to the September 2024 Notes was required to be bifurcated as a derivative liability, and the Company recorded a derivative liability of $91.5 million on the issuance date. As the fair value of the derivative liability exceeded the proceeds received, the Company recorded a corresponding financing loss of $24.7 million and debt discount for $66.8 million as of the issuance date as further described below in the Exchange Agreement. At the date of issuance, the $66.8 million of notes were issued with a debt discount equal to the entire principal amount, resulting in an initial net carrying amount of zero. The debt discount is being amortized on a straight-line basis over the term of the September 2024 Notes. In December 2024, the Company issued an additional $13.0 million of September 2024 Notes for cash. The Company recognized a $10.9 million debt discount in connection with these additional proceeds. The effective interest rate on this tranche is 64%. The Company issued an additional $0.2 million of September 2024 Notes in the thirteen week period ended March 30, 2025.

The carrying amount of the convertible September 2024 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
September 2024 Notes	$	80,000		$	79,800
Less Unamortized debt discount		(63,033	)		(73,688	)
Total carrying amount of September 2024 Notes and derivative liabilities	$	16,967		$	6,112

For the thirteen week period ended September 28, 2025 total interest expense was $5.1 million, of which interest expense and amortization of debt discount and issuance costs were $1.4 million and $3.7 million, respectively. Of these amounts, related party interest expense and amortization of debt discount and issuance costs were $0.2 million and $0.5 million, respectively. For the thirty-nine week period ended September 28, 2025 total interest expense was $15.1 million of which interest expense and amortization of debt discount and issuance costs were $4.2 million and $10.9 million, respectively. Of these amounts related party interest expense and amortization of debt discount and issuance costs were $0.5 million and $1.4 million, respectively.

For the thirteen and thirty-nine week periods ended September 29, 2024, total interest expense was $0.5 million, of which interest expense and amortization of debt discount and issuance costs were $0.1 million and $0.4 million, respectively. Of these amounts, both related party interest expense and amortization of debt discount and issuance costs were less than $0.1 million.

September 2025 Notes

On September 21, 2025, the Company issued an additional $22.0 million of the 7.0% Senior Notes (the “September 2025 Notes”) to various parties. The September 2025 Notes were issued pursuant to the Indenture. The September 2025 Notes contain a conversion option related to which requires bifurcation and recognition of a derivative liability, and the Company recorded a derivative liability of $15.4 million on the issuance date. The Company recognized a $2.2 million debt discount and $1.4 million of debt issuance costs in connection with the September 2025 Notes. The debt issuance costs include an estimate of the value of a warrant that will be issued in the subsequent fiscal year to the entity that arranged the financing. The effective interest rate on the September 2025 Notes is 67%. The net proceeds of $19.6 million from the issuance of the September 2025 Notes were principally used to pay a portion of the cash consideration for the Company’s acquisition of Sunder.

The carrying amount of the convertible September 2025 Notes, inclusive of the fair value of the derivative liabilities was as follows (in thousands):

	As of
	September 28,			December 29,
	2025			2024
	(As Restated)
September 2025 Notes	$	22,000		$	—
Less Unamortized debt discount		(18,932	)		—
Total carrying amount of September 2025 Notes and derivative liabilities	$	3,068		$	—

For the thirteen and thirty-nine week periods ended September 28, 2025, total interest expense was less than $0.1 million, both of which interest expense and amortization of debt discount and issuance costs were less than $0.1 million.

Note payable to Seller – related party

On September 24, 2025, the Company issued a note payable to the sellers of Sunder (“Seller Note”) to the Seller/Member in connection with the acquisition of 100% of the membership interests in Sunder. The Seller Note has an original principal amount of $20.0 million. The Seller Note bears interest at 7.0% per annum, compounded at the end of each calendar quarter. Interest is due and payable concurrent with the payment of the principal balance. The maturity date under the Seller Note is the earlier of (i) May 15, 2026 and (ii) the date on which all amounts under the Seller Note otherwise become due and payable following an event of default. The Seller Note must also be repaid in the event of a change of control of the Company or the sale of all or substantially all of the consolidated assets of the Company and its subsidiaries. The Seller Note includes customary events of default, including: (a) the Company’s failure to pay the Seller Note when due, (b) the Company’s voluntary or involuntary bankruptcy, (c) the Company’s liquidation or dissolution, (d) a change of control of the Company, (e) the Company’s material breach of the covenants applicable to the Company under the Seller Note, subject to applicable cure periods, and (f) if any of the Company’s representations or warranties made in the Seller Note were untrue in any material respect when made. The Company concluded that since the sellers joined the Company and have a level of influence that is not insignificant, they are related parties of the Company and therefore the Seller Note is a related party obligation. Management concluded that the carrying value of the Seller Note approximates its fair value due to the short-term nature of the obligation. Interest expense recognized on the Seller Note was less than $0.1 million in the thirteen and thirty-nine week periods ended September 28, 2025.

Exchange Agreement

On July 1, 2024, the Company entered into an Exchange Agreement (the “Exchange Agreement”) with Carlyle, which was deemed to be a related party beginning in fiscal 2024 and ended as of March 30, 2025 as described in Note 3 (h) Basis of Presentation and Summary of Significant Accounting Policies – Changes in related parties, and Kline Hill (as defined below) providing for:

(i)

the cancellation of all indebtedness, inclusive of the CS Solis Debt, owed to Carlyle by the Company, termination of all debt instruments by and between the Company and Carlyle (through the transfer of Carlyle’s interest in CS Solis, LLC, to the Company), and the satisfaction of all obligations owed to Carlyle by the Company under the terminated debt instruments;

(ii)

the issuance of a note for the principal amount of $10.0 million to Carlyle as part of the July 2024 Notes;

(iii)

the cancellation of all indebtedness owed to Kline Hill Partners Fund LP, Kline Hill Partners IV SPV LLC, and Kline Hill Partners Opportunity IV SPV, LLC (collectively “Kline Hill”). by the Company, termination of all debt instruments by and between the Company and Kline Hill, including the 2018 Bridge Notes, the revolving loan and a secured credit facility (“Secured Credit Facility”), and the satisfaction of all obligations owed to Kline Hill by the Company under the terminated debt instruments;

(iv)

the issuance of a note for the principal amount of $8.0 million to Kline Hill as part of the July 2024 Notes; and

(v)

the issuance of 1,500,000 shares of common stock, par value $0.0001 per share, of the Company (the “Common Stock”) to Kline Hill (the “Shares”).

At the date of the cancellation under the Exchange Agreement, the Company’s indebtedness to CS Solis was $37.2 million and the indebtedness to Kline Hill was comprised of the 2018 Bridge Notes of $11.7 million, Revolving Loan balance assigned to Kline Hill of $3.9 million, and the Secured Credit Facility balance of $13.1 million.

The Company concluded that the transactions entered into in the Exchange Agreement represented a troubled debt restructuring as the Company was experiencing financial difficulty, and the new terms of the July 2024 Notes resulted in a concession to the Company. As the carrying amount of the debt exceeded the future undiscounted cash payments under the new terms on the date of the exchange, the Company recorded a gain on the troubled debt restructuring of $19.8 million in the thirteen week and thirty-nine week periods ended September 29, 2024 and recorded an additional gain of $2.5 million in the fourth quarter of fiscal 2024 for an aggregate gain on troubled debt restructuring of $22.3 million in fiscal 2024.

Prior to the Exchange Agreement, the Company recorded accretion of the liability of the debt in CS Solis as related party interest expense of zero and $3.9 million in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.

Interest expense recognized on the 2018 Bridge Notes was zero and $0.7 million in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.

Interest expense on the Secured Credit Facility was zero and $1.0 million in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.

Revolving loan with related party

Prior to entering into the Exchange Agreement, the Company had a revolving loan (“Aggregate Revolving Loan”) due to Kline Hill and Rodgers Revocable Trust, a related party. The Aggregate Revolving Loan had an annual interest rate equal to the greater of 7.75% or Prime plus 4.5%. In connection with the Exchange Agreement in July 2024, $3.5 million of the Revolving Loan, plus accrued interest owed to Kline Hill, was exchanged for a portion of the July 2024 Notes. The principal balance of $1.5 million (“Related Party Loan”) owing to the Rodgers Revocable Trust (plus accrued interest) remained outstanding as of September 28, 2025, and December 29, 2024. There are no financial covenants.

Interest expense recognized on the Aggregate Revolving Loan was less than $0.1 million in each of the thirteen week periods ended September 28, 2025 and September 29, 2024. Interest expense recognized on the Aggregate Revolving Loan was $0.2 million and $0.4 million in the thirty-nine week periods ended September 28, 2025, and September 29, 2024, respectively.

Of the total interest expense recognized on the Aggregate Revolving Loan, related party interest expense recognized was less than $0.1 million in each of the thirteen week periods ended September 28, 2025 and September 29, 2024, and $0.2 million and $0.4 million in the thirty-nine week periods ended September 28, 2025, and September 29, 2024, respectively.

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements - Schedule of Restated Unaudited Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Jun. 29, 2025	Dec. 29, 2024
As Previously Reported [Member]
Current assets:
Cash and cash equivalents	$ 5,072
Accounts receivable, net	80,753
Inventories	8,694
Prepaid expenses and other current assets	20,830
Total current assets	115,349
Restricted cash	3,841
Property and equipment, net	3,670
Operating lease right-of-use assets	2,528
Intangible assets, net	38,956
Goodwill	42,911
Other noncurrent assets	1,085
Total assets	208,340
Current liabilities:
Accounts payable	19,857
Accrued expenses and other current liabilities	59,271
Notes payable to related parties	21,500
Current portion of notes payable
Contract liabilities	9,713
SAFE Agreement with related party	497
Forward purchase agreement liabilities	4,301
Total current liabilities	115,139
Warranty provision, noncurrent	2,140
Warrant liability	4,683
Contract liabilities, noncurrent	1,713
Notes payable and derivative liabilities, net of current	148,205
Operating lease liabilities, net of current portion	1,335
Other long-term liabilities	12,869
Total liabilities	320,656
Commitments and contingencies
Stockholders’ deficit:
Common stock	14
Additional paid-in capital	330,083
Accumulated other comprehensive income	165
Accumulated deficit	(442,578)
Total stockholders’ deficit	(112,316)	$ (107,184)	$ (97,539)
Total liabilities and stockholders’ deficit	208,340
As Previously Reported [Member] \| Related Party [Member]
Current liabilities:
Forward purchase agreement liabilities with related parties
Notes payable and derivative liabilities with related parties, net of current	34,572
Restatement Adjustments [Member]
Current assets:
Cash and cash equivalents
Accounts receivable, net	(7,706)
Inventories	(124)
Prepaid expenses and other current assets	(1,090)
Total current assets	(8,920)
Restricted cash
Property and equipment, net
Operating lease right-of-use assets
Intangible assets, net
Goodwill	(636)
Other noncurrent assets
Total assets	(9,556)
Current liabilities:
Accounts payable
Accrued expenses and other current liabilities	(2,021)
Notes payable to related parties
Current portion of notes payable	2,786
Contract liabilities	3,548
SAFE Agreement with related party
Forward purchase agreement liabilities
Total current liabilities	4,313
Warranty provision, noncurrent
Warrant liability
Contract liabilities, noncurrent
Notes payable and derivative liabilities, net of current	(8,751)
Operating lease liabilities, net of current portion
Other long-term liabilities
Total liabilities	(4,211)
Commitments and contingencies
Stockholders’ deficit:
Common stock
Additional paid-in capital	(329)
Accumulated other comprehensive income
Accumulated deficit	(5,016)
Total stockholders’ deficit	(5,345)	(6,508)
Total liabilities and stockholders’ deficit	(9,556)
Restatement Adjustments [Member] \| Related Party [Member]
Current liabilities:
Forward purchase agreement liabilities with related parties
Notes payable and derivative liabilities with related parties, net of current	227
As Restated [Member]
Current assets:
Cash and cash equivalents	5,072
Accounts receivable, net	73,047
Inventories	8,570
Prepaid expenses and other current assets	19,740
Total current assets	106,429
Restricted cash	3,841
Property and equipment, net	3,670
Operating lease right-of-use assets	2,528
Intangible assets, net	38,956
Goodwill	42,275
Other noncurrent assets	1,085
Total assets	198,784
Current liabilities:
Accounts payable	19,857
Accrued expenses and other current liabilities	57,250
Notes payable to related parties	21,500
Current portion of notes payable	2,786
Contract liabilities	13,261
SAFE Agreement with related party	497
Forward purchase agreement liabilities	4,301
Total current liabilities	119,452
Warranty provision, noncurrent	2,140
Warrant liability	4,683
Contract liabilities, noncurrent	1,713
Notes payable and derivative liabilities, net of current	139,454
Operating lease liabilities, net of current portion	1,335
Other long-term liabilities	12,869
Total liabilities	316,445
Stockholders’ deficit:
Common stock	14
Additional paid-in capital	329,754
Accumulated other comprehensive income	165
Accumulated deficit	(447,594)
Total stockholders’ deficit	(117,661)	$ (113,692)	$ (97,539)
Total liabilities and stockholders’ deficit	198,784
As Restated [Member] \| Related Party [Member]
Current liabilities:
Forward purchase agreement liabilities with related parties
Notes payable and derivative liabilities with related parties, net of current	$ 34,799

Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Sep. 29, 2024	Dec. 29, 2024
Fair Value Measurements [Line Items]
Capitalized interest	$ 7,654
SAFE Agreements [Member]
Fair Value Measurements [Line Items]
Conversion probability of percentage	50.00%
Discount rate of conversion			50.00%
Capitalized interest	$ 11,000		$ 13,600
Related Party [Member]
Fair Value Measurements [Line Items]
Due to related parties	$ 1,300		$ 1,300

- Definition

Amount of liabilities classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(15))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 480
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 64
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481620/480-10-55-64

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477548/944-605-55-14

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477548/944-605-55-11

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479168/946-830-55-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(12)(b)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(12)(b)(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(12)(b)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Business Combinations (Details) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 24, 2025	Dec. 29, 2024	Sep. 30, 2024	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Business Combination [Line Items]
Net of cash acquired							$ 20,689
Costs of goods	$ 2,200
Principal amount		$ 20,000
Trading day		30 days
Business days		2 days
Other long-term liabilities	12,869		$ 8,553		$ 12,869		12,869
Before income taxes					(12,590)	$ (77,958)	(35,115)	$ (101,422)
General and Administrative Expense [Member]
Business Combination [Line Items]
Acquisition cost			$ 7,200
Sunder Energy Acquisition [Member]
Business Combination [Line Items]
Contributed revenue	4,300
Before income taxes	300
SunPower Acquisition [Member]
Business Combination [Line Items]
Aggregate cash consideration				$ 54,500
Net of cash acquired				$ 1,000
Outstanding membership interest		$ 20,700
Sunder Energy Acquisition [Member]
Business Combination [Line Items]
Aggregate cash consideration		$ 57,800
Common stock to be issued (in Shares)		3,333,334
Additional paid-in capital	5,700				5,700		5,700
Accrued expenses and other current liabilities	5,700				5,700		5,700
Other long-term liabilities	$ 5,700				$ 5,700		$ 5,700
12-Month Anniversary [Member]
Business Combination [Line Items]
Common stock to be issued (in Shares)		3,333,333
18-Month Anniversary [Member]
Business Combination [Line Items]
Common stock to be issued (in Shares)		3,333,333
3 Month Anniversary [Member]
Business Combination [Line Items]
Deferred consideration percentage		50.00%
6 Month Anniversary [Member]
Business Combination [Line Items]
Deferred consideration percentage		50.00%
Common Stock [Member] \| Sunder Energy Acquisition [Member]
Business Combination [Line Items]
Common stock to be issued (in Shares)		10,000,000
Common Stock [Member]
Business Combination [Line Items]
Price per share (in Dollars per share)		$ 1.71
Common stock of acquisition		$ 17,100

Business Combinations - Schedule of Intangible Assets Acquired and Estimated Useful Lives (Details) $ in Thousands	Sep. 28, 2025 USD ($)
Schedule of Intangible Assets Acquired and Estimated Useful Lives [Line Items]
Amount	$ 25,922
Customer related intangible [Member]
Schedule of Intangible Assets Acquired and Estimated Useful Lives [Line Items]
Useful life (in years)	1 year
Amount	$ 9,279
Trademark - Sunder [Member]
Schedule of Intangible Assets Acquired and Estimated Useful Lives [Line Items]
Useful life (in years)	5 years
Amount	$ 2,427
Developed technology - Sunder [Member]
Schedule of Intangible Assets Acquired and Estimated Useful Lives [Line Items]
Useful life (in years)	5 years
Amount	$ 14,216

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Revenue Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Residential Solar Installation
Revenue	$ 35,179	$ 5,536	$ 110,199	$ 20,068
Total revenue	64,487	5,536	209,015	20,068
Total revenue recognized over time	44,594	5,536	145,142	20,068
Total revenue recognized at a point in time	19,893		63,873
New Homes Business [Member]
Residential Solar Installation
Revenue	28,502		98,010
Dealer [Member]
Residential Solar Installation
Revenue	806		806
Revenue Recognized Over Time [Member] \| Residential Solar Installation [Member]
Residential Solar Installation
Revenue	35,179	5,536	110,199	20,068
Revenue Recognized Over Time [Member] \| New Homes Business [Member]
Residential Solar Installation
Revenue	9,415		34,943
Revenue Recognized at a Point in Time [Member] \| New Homes Business [Member]
Residential Solar Installation
Revenue	19,087		63,067
Revenue Recognized at a Point in Time [Member] \| Dealer [Member]
Residential Solar Installation
Revenue	$ 806		$ 806

Capital Stock

9 Months Ended

Sep. 28, 2025

Capital Stock [Abstract]

Capital Stock

(9) Capital Stock

The Company has authorized the issuance of 1,000,000,000 shares of common stock and 10,000,000 shares of preferred stock as of September 28, 2025. No preferred stock has been issued and none are outstanding as of September 28, 2025.

Common stock purchase agreement

On July 16, 2024, the Company entered into a common stock purchase agreement with White Lion Capital, LLC (“White Lion”), as amended on July 24, 2024 (“White Lion SPA”), and a related registration rights agreement for an equity line of credit financing facility. Pursuant to the White Lion SPA, the Company has the right, but not the obligation, to require White Lion to purchase, from time to time, up to $30 million in aggregate gross purchase price of newly issued shares of the Company’s common stock, subject to the caps and certain limitations and conditions set forth in the White Lion SPA, including terms that restrict the ability of the Company to issue shares of common stock to White Lion that would result in White Lion beneficially owning more than 9.99% of the Company’s outstanding common stock.

On August 14, 2024, the Company entered into Amendment No. 2 to the White Lion SPA (collectively with the White Lion SPA “White Lion Amended SPA”). The White Lion Amended SPA provides that the Company may notify White Lion to exercise the Company’s right to sell shares of its common stock by delivering an Hour Rapid Purchase Notice. If the Company delivers an Hour Rapid Purchase Notice, the Company shall deliver to White Lion shares of common stock not to exceed the lesser of (i) five percent of the Average Daily Trading Volume on the date of an Hour Rapid Purchase Notice and (ii) 100,000 shares of common stock. The closing of the transactions under an Hour Rapid Purchase Notice will occur one Business Day following the date on which the Hour Rapid Purchase Notice is delivered. At such closing, White Lion will pay the Company the Hour Rapid Purchase Investment Amount equal to the number of shares of common stock subject to the applicable Hour Rapid Purchase Notice multiplied by the lowest traded price of the Company’s common stock during the one-hour period following White Lion’s consent to the acceptance of the applicable Hour Rapid Purchase Notice.

Under the White Lion Amended SPA, the Company issued 1.0 million and 2.9 million shares of the Company’s common stock for proceeds of $1.7 million and $6.7 million in the thirty-nine week period ended September 28, 2025 and fiscal year ended December 29, 2024, respectively.

The Company has reserved shares of common stock for issuance related to the following:

	As of
	September 28,		December 29,
	2025		2024
		(As Restated)
Common stock warrants		25,670,265		31,670,265
Employee stock purchase plan		3,174,434		2,628,996
Stock options and RSUs, issued and outstanding		21,549,600		11,979,368
Stock options and RSUs, authorized for future issuance		9,986,173		2,577,895
SAFE Agreement		2,750,000		2,750,000
Forward purchase agreements		6,720,000		6,720,0000
Convertible notes		77,821,528		58,579,636
Deferred consideration		6,666,666		—
Total shares reserved		154,338,666		116,906,160

Warrants

The potential number of shares of the Company’s common stock for outstanding warrants were as follows:

	Potential shares of common stock as of				Exercise
	September 28, 2025		December 29, 2024		price per share		Expiration date
Liability classified warrants
Public Warrants		6,266,667		6,266,667	$	11.50	July 18, 2028 ⁽¹⁾
Private Placement Warrants		8,625,000		8,625,000		11.50	July 18, 2028 ⁽¹⁾
Working Capital Warrants		716,668		716,668		11.50	July 18, 2028 ⁽¹⁾
Total shares of common stock – liability classified warrants		15,608,335		15,608,335
Equity classified warrants
Series B Warrants (converted to common stock warrants)		5,054		5,054	$	4.30	February 2026
Series C Warrants (converted to common stock warrants)		482,969		482,969		1.00	July 2026
Series C-1 Warrants (converted to common stock warrants)		173,067		173,067		0.01	January 2030
SVB Common Stock Warrants		2,473		2,473		0.38	2033
SVB Common Stock Warrants		2,525		2,525		0.62	2033
Promissory Note Common Stock Warrants		24,148		24,148		0.01	October 2031
July 2023 Common Stock Warrants		38,981		38,981		0.01	July 2028
Common Stock Warrants Issued in 2023 (“Merger Warrants”)		6,266,572		6,266,572		11.50	July 18, 2033
Ayna Warrant		—		6,000,000		0.01	June 2029
Cantor Warrant		3,066,141		3,066,141		1.68	June 2029
Total shares of common stock – equity classified warrants		10,061,930		16,061,930
Total potential shares of common stock		25,670,265		31,670,265

⁽¹⁾	The warrants expire five years after the Closing date of the Mergers, which date was July 18, 2023, or earlier upon redemption or liquidation.

Ayna warrant

On June 17, 2024, a warrant to purchase 6,000,000 shares of the Company’s common stock (“Ayna Warrant”) was issued to Ayna.AI LLC (“Ayna”) at an exercise price per share of $0.01, subject to the provisions and upon the terms and conditions set forth in the Ayna Warrant. At issuance, the fair value of the Ayna Warrant was determined to be $9.2 million, based on the intrinsic value of the Ayna Warrant and the $0.01 per share exercise price. The Ayna Warrant was set to expire on June 17, 2029. The issuance of the Ayna Warrant by the Company was in satisfaction of the compensation for services provided to the Company by Ayna under the terms of a statement of work (“Ayna SOW”), signed May 21, 2024 (and effective as of March 12, 2024), as incorporated into a master services agreement dated March 12, 2024. Under the Ayna SOW, Ayna provided services in connection with the anticipated return of the Company to cash-flow positive performance.

The Ayna Warrant was accounted for under ASC 718 Compensation – Stock Compensation as it met the conditions for equity classification and therefore, the Ayna Warrant was not subsequently remeasured in future periods. The Company recognized expense of $3.8 million and $5.4 million in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.

The Ayna Warrant became fully exercisable for the 6,000,000 shares of the Company’s common stock on September 9, 2024. The Ayna Warrant was exercised in full for cash of $0.06 million in January 2025.

Cantor warrant

In July 2024, the Company issued a warrant (“Cantor Warrant”) to a third-party service provider to purchase 3,066,141 shares of the Company’s common stock in exchange for services provided in the issuance of the July 2024 Notes (refer to Note 10 – Borrowings and Derivative Liabilities). The Cantor Warrant was immediately exercisable at a price of $1.68 per share and has an expiration date in July 2029. At issuance, the fair value of the Cantor Warrant was determined to be $1.4 million, of which $0.9 million was recorded as a debt discount and $0.5 million was attributable to the convertible notes issued in the Exchange Agreement (as defined in Note 10 – Borrowings and Derivative Liabilities) and reduced the gain on the troubled debt restructuring recognized in the Company’s annual consolidated statement of operations and comprehensive loss for fiscal 2024 as described in Note 10 – Borrowings and Derivative Liabilities. The fair value of the Cantor Warrant was derived using the Black-Scholes model with the following assumptions: expected volatility of 55%; risk-free interest rate of 4.2%; expected term of 5 years; and no dividend yield. The fair value of this warrant was recorded within additional paid-in capital on the Company’s unaudited condensed consolidated balance sheets and has not been subsequently remeasured in future periods as it met the conditions for equity classification.

Carlyle warrant

In February 2022, as part of a debt financing arrangement with Carlyle , the Company issued Carlyle a warrant to purchase 2,886,952 shares of Legacy Complete Solaria Common Stock at a price per share of $0.01. The warrant contained two tranches, the first of which was immediately exercisable for 1,995,879 shares of common stock. The second tranche expired on December 31, 2022, prior to becoming exercisable. In December 2023, Carlyle was issued a warrant to purchase an additional 2,190,604 shares of the Company’s common stock related to an anti-dilution provision under the then-existing debt arrangement with Carlyle.

In July 2023, and in connection with the closing of the Mergers, the Company entered into the Carlyle Warrant Amendment (as defined in Note 10 – Borrowings and Derivative Liabilities), Based on the exchange ratio included in the Mergers, the 1,995,879 outstanding warrants to purchase Legacy Complete Solaria Common Stock prior to modification were exchanged into warrants to purchase 1,995,879 shares of Complete Solaria Common Stock. The Carlyle Warrant Amendment required the Company to issue to Carlyle a warrant to purchase up to 2,745,879 shares of Complete Solaria Common Stock at a price per share of $0.01, which was inclusive of the outstanding warrant to purchase 1,995,879 shares at the time of modification. The warrant, which expires on July 18, 2030, provided Carlyle with the right to purchase shares of Complete Solaria Common Stock based on (a) the greater of (i) 1,995,879 shares and (ii) the number of shares equal to 2.795% of Complete Solaria’s issued and outstanding shares of common stock, on a fully-diluted basis; plus (b) on and after the date that was ten (10) days after the date of the agreement, an additional 350,000 shares; plus (c) on and after the date that was thirty (30) days after the date of the agreement, if the original investment amount had not been repaid, an additional 150,000 shares; plus (d) on and after the date that was ninety (90) days after the date of the agreement, if the original investment amount had not been repaid, an additional 250,000 shares, in each case, of Complete Solaria Common Stock at a price of $0.01 per share. The modification of the warrant resulted in the reclassification of previously equity-classified warrants to liability classification, which was accounted for in accordance with ASC 815 Derivatives and Hedging and ASC 718, Compensation – Stock Compensation.

The change in the fair value of the liability classified Carlyle Warrant through June 30, 2024, was recorded within Other expense, net in the accompanying condensed consolidated statements of operations and comprehensive loss. The change in the fair value of the Carlyle Warrant resulted in income of $2.9 million in the twenty-six week period ended June 30, 2024.

On July 1, 2024, in connection with the Exchange Agreement, the Carlyle Warrant was modified, and the modification fixed the number of shares of the Company’s common stock that may be issued upon exercise of the Carlyle Warrant at 4,936,483. At the July 1, 2024, modification date, the Carlyle Warrant had a fair value of $7.3 million compared to its fair value of $6.6 million on June 30, 2024. The Company recognized this $0.7 million of expense related to the remeasurement of the Carlyle Warrant liability to its fair value within “Gain on Extinguishment of Debt” within the Company’s consolidated statement of operations and comprehensive loss in its fiscal 2024 consolidated results. The modification of the Carlyle Warrant also resulted in the reclassification of the Carlyle Warrant from liability to equity classification, resulting in an increase to additional paid-in capital of $7.3 million and a reduction in the warrant liability of $7.3 million.

Carlyle exercised the warrant for shares of the Company’s common stock in the fourth quarter of fiscal 2024.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
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+ Details

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
SameDay Solar [Member]
Related Party Transactions [Line Items]
Cost of revenue	$ 0.1	$ 0.5	$ 0.4	$ 0.5

- Definition

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Cover - shares	9 Months Ended
Cover - shares	Sep. 28, 2025	Dec. 18, 2025
Document Information [Line Items]
Document Type	10-Q/A
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	true
Amendment Description	SunPower Inc. (“SunPower” or the “Company”) is filing this Amendment No. 1 on Form 10Q/A (the “Amended Report”) to amend and restate certain items in its Quarterly Report on Form 10-Q for the quarterly period ended September 28, 2025 originally filed with the U.S. Securities and Exchange Commission (the “SEC”) on December 19, 2025, (the “Original Report”), in order to reflect the effects of the restatement of the financial statements included in the Original Report (the “Restatement”). This Amended Report includes the Company’s restated unaudited condensed consolidated financial statements as of and for the thirteen and thirty-nine week period ended September 28, 2025 to correct errors related to the recognition of revenues, cost of revenues, stock-based compensation expense and interest and amortization of debt discount expense, and the related balance sheet accounts including accounts receivable, net, inventories, accrued expenses and other current liabilities, notes payable, current, notes payable and derivative liabilities, net of current portion, notes payable and derivative liabilities with related parties, net of current portion and additional paid-in capital. The Company also identified payroll and amortization expense classification errors within cost of revenues and operating expenses, which did not have any impact on the Company’s net operating results but misstated the expense categories within the unaudited condensed consolidated statements of operations. In addition: ●On May 18, 2026, the Company filed Amendment No. 1 to its Quarterly Report on Form 10Q/A for the quarterly period ended March 30, 2025, originally filed with the SEC on May 19, 2025, and ●On May 19, 2026, the Company filed Amendment No. 1 to its Quarterly Report on Form 10Q/A for the quarterly period ended June 29, 2025 originally filed with the SEC on August 13, 2025 (collectively with this Amended Report, the “Amended Filings”). The Amended Filings correct errors related to the recognition of revenues, cost of revenues, stock-based compensation expense and interest and amortization of debt discount expense, and the related balance sheet accounts including accounts receivable, net, inventories, accrued expenses and other current liabilities, current portion of notes payable, notes payable and derivative liabilities, net of current portion, notes payable and derivative liabilities with related parties, net of current portion and additional paid-in capital for the applicable periods of fiscal 2025 covered by such reports.
Document Period End Date	Sep. 28, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q3
Entity Information [Line Items]
Entity Registrant Name	SUNPOWER INC.
Entity Central Index Key	0001838987
Entity File Number	001-40117
Entity Tax Identification Number	93-2279786
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-29
Entity Current Reporting Status	No
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Incorporation, Date of Incorporation	Feb. 22, 2010
Entity Contact Personnel [Line Items]
Entity Address, Address Line One	1403 N. Research Way
Entity Address, City or Town	Orem
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84097
Entity Phone Fax Numbers [Line Items]
City Area Code	(877)
Local Phone Number	299-4943
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		107,621,272
Common stock, par value $0.0001 per share
Entity Listings [Line Items]
Title of 12(b) Security	Common stock, par value $0.0001 per share
Trading Symbol	SPWR
Security Exchange Name	NASDAQ
Redeemable warrants, each whole warrant exercisable for one share of common stock
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one share of common stock
Trading Symbol	SPWRW
Security Exchange Name	NASDAQ

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024	Sep. 29, 2024	Dec. 31, 2023
Schedule of Reconciles Cash, Cash Equivalents, and Restricted Cash [Abstract]
Cash and cash equivalents	$ 5,072	$ 13,378
Restricted cash	3,841	3,841
Total cash, cash equivalents and restricted cash	$ 8,913	$ 17,219	$ 83,343	$ 6,416

Stock-Based Compensation

9 Months Ended

Sep. 28, 2025

Stock-Based Compensation [Abstract]

Stock-Based Compensation

(12) Stock-Based Compensation

In July 2023, the Company’s board of directors adopted and stockholders approved the 2023 Incentive Equity Plan (the “2023 Plan”). The 2023 Plan became effective immediately upon the closing of the Amended and Restated Business Combination Agreement. Initially, a maximum number of 8,763,322 shares of SunPower common stock may be issued under the 2023 Plan. In addition, the number of shares of SunPower common stock reserved for issuance under the 2023 Plan will automatically increase on January 1 of each year, starting on January 1, 2024 and ending on January 1, 2033, in an amount equal to the lesser of (1) 4% of the total number of shares of SunPower’s common stock outstanding on December 31 of the preceding year, or (2) a lesser number of shares of SunPower common stock determined by SunPower’s Board prior to the date of the increase. The maximum number of shares of SunPower common stock that may be issued on the exercise of incentive stock options (“ISOs”) under the 2023 Plan is three times the number of shares available for issuance upon the 2023 Plan becoming effective (or 26,289,966 shares).

Historically, awards were granted under the Amended and Restated Complete Solaria Omnibus Incentive Plan (“2022 Plan”), the Complete Solar 2011 Stock Plan (“2011 Plan”), the Solaria Corporation 2016 Stock Plan (“2016 Plan”) and the Solaria Corporation 2006 Stock Plan (“2006 Plan”) (together with the Complete Solaria, Inc. 2023 Incentive Equity Plan (“2023 Plan”), “the Plans”).

Under the Plans, the Company has granted service-based stock options and restricted stock units (“RSUs”). Compensation expense for stock options under the Company’s cliff vesting schedule is generally recognized equally over the vesting period of five years. RSUs granted during the fiscal year ended December 29, 2024 are also recognized equally over the vesting period of five years.

The information below summarizes the stock option activity under the Plans.

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
Outstanding—December 29, 2024		9,997,233		$	2.77		5.29	$	6,356
Options granted		—
Options exercised		(712,467	)		0.73				88
Options canceled		(4,874,689	)		2.53
Outstanding—September 28, 2025		4,410,078			3.04				2,157
Vested and expected to vest— September 28, 2025		4,410,078			3.04				2,157
Vested and exercisable— September 28, 2025		2,364,439			6.98				722

The information below summarizes the RSU activity.

	Number of RSUs			Weighted Average Grant Date Fair Value
	(As Restated)
Unvested at December 29, 2024		1,982,135		$	1.79
Granted		22,235,871			1.73
Vested and released		(3,864,608	)		1.75
Cancelled or forfeited		(3,213,876	)		1.76
Unvested at September 28, 2025		17,139,522			1.73

Stock-based compensation expense

The following table summarizes stock-based compensation expense and its allocation within the accompanying unaudited condensed consolidated statements of operations and comprehensive loss (in thousands):

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
	(As Restated)				(As Restated)
Cost of revenues	$	714	$	49	$	2,232	$	105
Sales and marketing		570		196		2,057		490
General and administrative		839		1,271		3,587		3,491
Total stock-based compensation expense	$	2,123	$	1,516	$	7,876	$	4,086

As of September 28, 2025, unrecognized stock-based compensation costs related to service-based options and RSUs was $1.6 million and $28.3 million respectively, and such compensation cost is expected to be recognized over a weighted-average period of 2.8 years and 4.3 years, respectively.

Commitments and Contingencies (Details) - USD ($)
$ in Thousands

1 Months Ended

3 Months Ended

9 Months Ended

Dec. 04, 2025

Jun. 17, 2024

Mar. 15, 2024

Oct. 23, 2023

Mar. 16, 2023

Feb. 28, 2023

Jan. 31, 2023

Sep. 28, 2025

Dec. 29, 2024

Feb. 22, 2024

Dec. 31, 2023

Commitments and Contingencies [Line Items]

Loss contingency in accrued expenses and other current liabilities

$ 9,200

$ 7,700

Damages amount

$ 220,000

Subsidiaries indemnity obligations

$ 6,900

Accrual amount of legal loss

$ 6,900

Additional expense

1,100

Liability for legal settlement

^[1]

20,355

21,570

Letters of credit outstanding

3,500

Restricted cash accounts

3,800

$ 3,800

Forecast [Member]

Commitments and Contingencies [Line Items]

Payment for settlement

$ 9,500

Debt amount

1,000

Security interest

$ 9,500

Siemens Litigation [Member]

Commitments and Contingencies [Line Items]

Damages amount

$ 6,900

Fees, expenses, and pre-judgment interest

$ 2,670

Liability for legal settlement

$ 8,000

8,000

SolarPark Korea Co., LTD [Member]

Commitments and Contingencies [Line Items]

$ 80,000

$ 26,400

$ 2,000

Commitments and Contingencies [Line Items]

Attorneys’ fees and costs

$ 2,000

[1]	No individual items exceed 5% of total current liabilities.

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Contract Liabilities Balances (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
Schedule of Contract Liabilities Balances [Abstract]
Contract liabilities current and noncurrent	$ (14,974)	$ (10,921)

Segment Information

9 Months Ended

Sep. 28, 2025

Segment Information [Abstract]

Segment Information

(16) Segment Information

The segment information is presented on a basis that is consistent with the Company’s internal management reporting. The Company’s Chief Executive Officer (“CEO”) is the Chief Operating Decision Maker (“CODM”). The CODM manages the Company and reports financial results based on three reportable segments which are the same as the Company’s operating segments. The CODM evaluates the performance of these reportable segments and allocates resources to make operating decisions based on certain financial information, including segmented internal income/(loss) prepared on a basis consistent with U.S. GAAP. The measurement criteria is based on their operating revenue and operating income (loss) and excluding any corporate costs which are not allocatable to the operating segments. The CODM’s measurement criteria does not include segment assets. During the periods presented, the Company reported its financial performance through the following three reportable segments; Residential Solar Installation, New Homes Business and Dealer.

Residential Solar Installation. This segment performs solar system, storage and battery installations for residential homeowners.

New Homes Business. This segment is new, as a result of the SunPower Acquisition which occurred in the fourth quarter of fiscal 2024. The Company developed a method to allocate direct expenses for the respective reportable segments. This segment performs solar system installations for new home builders.

Dealer. This segment is new beginning in fiscal year 2025, as a result of the Sunder Acquisition which occurred late in the third quarter of fiscal 2025. This segment’s principal activity is a solar energy sales force to initiate and execute contracts with customers throughout the United States.

	Thirteen Weeks Ended
	September 28, 2025										September 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Dealer		Total			Residential Solar Installation			New Homes Business		Dealer		Total
	(As Restated)
Operating revenues	$	35,179		$	28,502		806	$	64,487		$	5,536		$	—	$	—	$	5,536

Less:
Cost of revenues⁽¹⁾		20,995			11,436		—					8,693			—		—
Sales commissions		7,479			55		636					7,270			—		—
Sales and marketing		4,171			1,648		—					1,093			—		—
General and administrative⁽²⁾		11,449			8,214		—					18,450			—		—
Operating (loss) income from continuing operations		(8,915	)		7,149		170		(1,596	)		(29,970	)		—		—		(29,970	)
Reconciliation of segment (loss) income from continuing operations before income taxes:
Unallocated amounts:
Interest expense									(6,738	)									(2,338	)
Interest income									—										86
Other expense, net									(4,256	)									(65,684	)
Gain on extinguishment of debt									—										19,948
Loss from continuing operations before income taxes								$	(12,590	)								$	(77,958	)

⁽¹⁾

For the thirteen weeks ended September 28, 2025, depreciation and amortization expense was $0.4 million for the Residential Solar Installation reportable segment.

⁽²⁾

	Thirty-Nine Weeks Ended
	September 28, 2025										September 29, 2024
(in thousands)	Residential Solar Installation			New Homes Business		Dealer		Total			Residential Solar Installation			New Homes Business		Dealer		Total
	(As Restated)
Operating revenues	$	110,199		$	98,010		806	$	209,015		$	20,068		$	—	$	—	$	20,068

Less:
Cost of revenues⁽¹⁾		68,622			57,177		—					21,834			—		—
Sales commissions		22,882			1,391		636					11,691			—		—
Sales and marketing		19,358			2,147		—					3,762			—		—
General and administrative⁽²⁾		32,446			18,599		—					29,789			—		—
Operating (loss) income from continuing operations		(33,109	)		18,696		170		(14,243	)		(47,008	)		—		—		(47,008	)
Reconciliation of segment (loss) income from continuing operations before income taxes:
Unallocated amounts:
Interest expense									(19,151	)									(8,230	)
Interest income									3										102
Other expense, net									(1,724	)									(66,234	)
Gain on extinguishment of debt									—										19,948
Loss from continuing operations before income taxes								$	(35,115	)								$	(101,422	)

⁽¹⁾

⁽²⁾

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Organization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Organization (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Dec. 29, 2024
Organization [Line Items]
Incorporation date			Feb. 22, 2010
Loss from continuing operations	$ (12,590)	$ (77,958)	$ (35,115)	$ (101,433)
Accumulated deficit	(447,594)		(447,594)		$ (411,379)
Total debt	198,500		198,500
Restricted cash	$ 5,100		$ 5,100

- Definition

Amount after tax of income (loss) from continuing operations attributable to the parent.

+ References

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+ Details

- Definition

Amount of accumulated undistributed earnings (deficit).

+ References + Details

Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements - Schedule of Restated Unaudited Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 28, 2025	Sep. 28, 2025
Previously Reported [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	$ 70,005	$ 220,269
Cost of revenues	37,965	126,970
Gross profit	32,040	93,299
Operating expenses:
Sales commissions	7,534	24,273
Sales and marketing	6,467	21,764
General and administrative	21,483	52,382
Total operating expenses	35,484	98,419
Loss from continuing operations	(3,444)	(5,120)
Interest expense	(8,104)	(23,258)
Interest income		3
Other expense, net	(4,256)	(1,724)
Total other expense, net	(12,360)	(24,979)
Loss from continuing operations before income taxes	(15,804)	(30,099)
Income tax provision
Net loss from continuing operations	(15,804)	(30,099)
Net loss from discontinued operations, net of taxes	(1,100)	(1,100)
Net loss	(16,904)	(31,199)
Comprehensive loss, net of tax	$ (16,904)	$ (31,199)
Net loss from continuing operations per share attributable to common stockholders, basic (in Dollars per share)	$ (0.19)	$ (0.37)
Net loss from continuing operations per share attributable to common stockholders, diluted (in Dollars per share)	(0.19)	(0.37)
Net loss from discontinued operations per share attributable to common stockholders, basic (in Dollars per share)	(0.01)	(0.01)
Net loss from discontinued operations per share attributable to common stockholders, diluted (in Dollars per share)	(0.01)	(0.01)
Net loss per share attributable to common stockholders, basic (in Dollars per share)	(0.2)	(0.38)
Net loss per share attributable to common stockholders, diluted (in Dollars per share)	$ (0.2)	$ (0.38)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in Shares)	84,904,228	82,036,790
Weighted-average shares used to compute net loss per share attributable to common stockholders, diluted (in Shares)	84,904,228	82,036,790
Revision of Prior Period, Adjustment [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	$ (5,518)	$ (11,254)
Cost of revenues	(5,534)	(1,171)
Gross profit	16	(10,083)
Operating expenses:
Sales commissions	636	636
Sales and marketing	(648)	(259)
General and administrative	(1,820)	(1,337)
Total operating expenses	(1,832)	(960)
Loss from continuing operations	1,848	(9,123)
Interest expense	1,366	4,107
Interest income
Other expense, net
Total other expense, net	1,366	4,107
Loss from continuing operations before income taxes	3,214	(5,016)
Income tax provision
Net loss from continuing operations	3,214	(5,016)
Net loss from discontinued operations, net of taxes
Net loss	3,214	(5,016)
Comprehensive loss, net of tax	$ 3,214	$ (5,016)
Net loss from continuing operations per share attributable to common stockholders, basic (in Dollars per share)	$ 0.04	$ (0.06)
Net loss from continuing operations per share attributable to common stockholders, diluted (in Dollars per share)	0.04	(0.06)
Net loss from discontinued operations per share attributable to common stockholders, basic (in Dollars per share)
Net loss from discontinued operations per share attributable to common stockholders, diluted (in Dollars per share)
Net loss per share attributable to common stockholders, basic (in Dollars per share)	0.04	(0.06)
Net loss per share attributable to common stockholders, diluted (in Dollars per share)	$ 0.04	$ (0.06)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in Shares)	(310,584)	(43,700)
Weighted-average shares used to compute net loss per share attributable to common stockholders, diluted (in Shares)	(310,584)	(43,700)
As Restated [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	$ 64,487	$ 209,015
Cost of revenues	32,431	125,799
Gross profit	32,056	83,216
Operating expenses:
Sales commissions	8,170	24,909
Sales and marketing	5,819	21,505
General and administrative	19,663	51,045
Total operating expenses	33,652	97,459
Loss from continuing operations	(1,596)	(14,243)
Interest expense	(6,738)	(19,151)
Interest income		3
Other expense, net	(4,256)	(1,724)
Total other expense, net	(10,994)	(20,872)
Loss from continuing operations before income taxes	(12,590)	(35,115)
Income tax provision
Net loss from continuing operations	(12,590)	(35,115)
Net loss from discontinued operations, net of taxes	(1,100)	(1,100)
Net loss	(13,690)	(36,215)
Comprehensive loss, net of tax	$ (13,690)	$ (36,215)
Net loss from continuing operations per share attributable to common stockholders, basic (in Dollars per share)	$ (0.15)	$ (0.43)
Net loss from continuing operations per share attributable to common stockholders, diluted (in Dollars per share)	(0.15)	(0.43)
Net loss from discontinued operations per share attributable to common stockholders, basic (in Dollars per share)	(0.01)	(0.01)
Net loss from discontinued operations per share attributable to common stockholders, diluted (in Dollars per share)	(0.01)	(0.01)
Net loss per share attributable to common stockholders, basic (in Dollars per share)	(0.16)	(0.44)
Net loss per share attributable to common stockholders, diluted (in Dollars per share)	$ (0.16)	$ (0.44)
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in Shares)	84,593,644	81,993,090
Weighted-average shares used to compute net loss per share attributable to common stockholders, diluted (in Shares)	84,593,644	81,993,090

Subsequent Events (Details) - USD ($)						3 Months Ended		9 Months Ended		12 Months Ended
Subsequent Events (Details) - USD ($)	Nov. 21, 2025	Nov. 20, 2025	Nov. 11, 2025	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024	Dec. 31, 2024	Dec. 29, 2024
Subsequent Events [Line Items]
Common stock par value (in Dollars per share)				$ 0.0001		$ 0.0001		$ 0.0001			$ 0.0001
Addition shares of common stock								$ 1,682,000	$ 6,143,000
Trading volume weighted average price period	20 days
Forecast [Member]
Subsequent Events [Line Items]
Addition shares of common stock	$ 9,375,000
Partial conversion of September 2024 Notes [Member]
Subsequent Events [Line Items]
Converted amount				$ 10,600,000
Converted shares (in Shares)					6,200,000
Convertible Senior Unsecured Convertible Note [Member]
Subsequent Events [Line Items]
Converted shares (in Shares)		626.9592
Principal amount		$ 1,000
Common Stock [Member]
Subsequent Events [Line Items]
Issuance of share (in Shares)						4,333,334	2,718,837	4,333,334	2,718,837
Addition shares of common stock								$ 1,700,000		$ 6,700,000
Common Stock [Member] \| Forecast [Member]
Subsequent Events [Line Items]
Issuance of share (in Shares)	10,243,924
Common stock par value (in Dollars per share)	$ 0.0001
Addition shares of common stock	$ 9,375,000
Related Party [Member] \| Senior Notes [Member] \| Convertible Senior Unsecured Convertible Note [Member]
Subsequent Events [Line Items]
Interest rate				12.00%		12.00%		12.00%
Related Party [Member] \| Senior Notes [Member] \| Convertible Senior Unsecured Convertible Note [Member] \| Forecast [Member]
Subsequent Events [Line Items]
Deposits		$ 2,000,000
Subsequent Event [Member] \| Letter of Intent to Acquire Ambia Solar [Member]
Subsequent Events [Line Items]
Exchange of equity			$ 37,500,000
Maximum [Member] \| Forecast [Member]
Subsequent Events [Line Items]
Price per share (in Dollars per share)	$ 2.8102
Minimum [Member] \| Forecast [Member]
Subsequent Events [Line Items]
Price per share (in Dollars per share)	$ 1.4988

Commitments and Contingencies

9 Months Ended

Sep. 28, 2025

Commitments and Contingencies [Abstract]

Commitments and Contingencies

(13) Commitments and Contingencies

Warranty provision

Activity by period relating to the Company’s warranty provision was as follows (in thousands):

	Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024
Warranty provision, beginning of period	$	5,968		$	4,849
Accruals for new warranties issued		3,238			830
Settlements, other		(5,837	)		(932	)
Warranty provision, end of period	$	3,369		$	4,747
Warranty provision, current	$	1,229		$	1,425
Warranty provision, noncurrent		2,140			3,322

Indemnification agreements

From time to time, in its normal course of business, the Company may indemnify other parties, with which it enters into contractual relationships, including customers, lessors, and parties to other transactions with the Company. The Company may agree to hold other parties harmless against specific losses, such as those that could arise from breach of representation, covenant or third-party infringement claims. It may not be possible to determine the maximum potential amount of liability under such indemnification agreements due to the unique facts and circumstances that are likely to be involved in each particular claim and indemnification provision. Historically, there have been no such indemnification claims. In the opinion of management, any liabilities resulting from these agreements would not have a material adverse effect on the business, financial position, results of operations, or cash flows of the Company.

Settlement of dispute with SunPower Debtors Bankruptcy Estate

Following the consummation of the acquisition of certain assets and assumption of certain liabilities of SunPower Debtors on September 30, 2024, certain matters pertaining to the acquisition were under dispute which included 1) amounts owed to and from the buyer and seller with respect to amounts in escrow related to the consideration transferred, 2) the right to the cash acquired in the acquisition, and 3) the right for the Company to sell and collect for certain solar systems that were acquired as a part of the acquisition that were sold or are to be sold to homebuilders within the New Homes Business. On June 25, 2025, all matters under dispute were resolved by the Company and the SunPower Bankruptcy Estate. Matters 1) and 2) were resolved such that no amounts will be paid (or received) by the Company. Matter 3) was resolved such that the Company has the right to sell the related inventory acquired and collect the underlying sales price for the sale of the solar system. In connection with each system sold, the Company is required to remit a portion of the sales price to the SunPower Bankruptcy Estate. The impact of the related settlement is not anticipated to be material.

Legal matters

The Company is a party to various legal proceedings and claims which arise in the ordinary course of business. The Company records a liability when it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated. If the Company determines that a loss is reasonably possible and the loss or range of loss can be reasonably estimated, the Company discloses the reasonably possible loss. The Company adjusts its accruals to reflect the impact of negotiations, settlements, rulings, advice of legal counsel and other information and events pertaining to a particular case. Legal costs are expensed as incurred. Although claims are inherently unpredictable, the Company is not aware of any matters that may have a material adverse effect on the Company’s business, financial position, results of operations, or cash flows. The Company has a loss contingency for legal settlements of $9.2 million and $7.7 million recorded within accrued expenses and other current liabilities in its unaudited condensed consolidated balance sheets at each of September 28, 2025 and December 29, 2024.

SolarPark litigation

In January 2023, SolarPark Korea Co., LTD (“SolarPark”) demanded approximately $80.0 million during discussions between the Company and SolarPark. In February 2023, the Company submitted its statement of claim seeking approximately $26.4 million in damages against SolarPark. The ultimate outcome of this arbitration is currently unknown and could result in a material liability to the Company. However, the Company believes that the allegations lack merit and intends to vigorously defend all claims asserted. No liability has been recorded in the Company’s unaudited condensed consolidated financial statements as the likelihood of a loss is not probable at this time.

On March 16, 2023, SolarPark filed a complaint against Solaria and the Company in the U.S. District Court for the Northern District of California (“the court”). The complaint alleges a civil conspiracy involving misappropriation of trade secrets, defamation, tortious interference with contractual relations, inducement to breach of contract, and violation of California’s Unfair Competition Law. The complaint indicates that SolarPark has suffered in excess of $220.0 million in damages.

On May 11, 2023, SolarPark filed a motion for preliminary injunction to seek an order restraining the Company from using or disclosing SolarPark’s trade secrets, making or selling shingled modules other than those produced by SolarPark, and from soliciting solar module manufacturers to produce shingled modules using Solaria’s shingled patents. On May 18, 2023, the Company responded by filing a motion for partial dismissal and stay. On June 1, 2023, SolarPark filed an opposition to the Company’s motion for dismissal and stay and a reply in support of their motion for preliminary injunction. On June 8, 2023, the Company replied in support of its motion for partial dismissal and stay. On July 11, 2023, the court conducted a hearing to consider SolarPark’s and the Company’s respective motions. On August 3, 2023, the court issued a ruling, which granted the preliminary injunction motion with respect to any purported misappropriation of SolarPark’s trade secrets. The court’s ruling does not prohibit the Company from producing shingled modules or from utilizing its own patents for the manufacture of shingled modules. The court denied SolarPark’s motion seeking a defamation injunction. The court denied the Company’s motion to dismiss and granted the Company’s motion to stay the entire litigation pending the arbitration in Singapore. On September 1, 2023, the Company filed a Limited Notice of Appeal to appeal the August 2023 order granting SolarPark’s motion for preliminary injunction. On September 26, 2023, Solaria filed a Notice of Withdrawal of Appeal and will not appeal the Court’s Preliminary Injunction Order. Between August 2023 and March 2024, the parties were engaged in discovery negotiations and the Company produced documents to SolarPark. The Company produced its last set of documents on March 14, 2024. On August 14, 2025, the Court held a virtual hearing and revived the case. SolarPark subsequently amended the complaint, and the Company responded on October 14, 2025, with a motion to dismiss the complaint in its entirety. The Company also believes it has valid counterclaims to pursue against SolarPark. The litigation remains ongoing.

No liability has been recorded in the Company’s unaudited condensed consolidated financial statements as the likelihood of a loss is not probable at this time.

Siemens litigation

On July 22, 2021, Siemens Government Technologies, Inc. (“Siemens Government Technologies”) filed a lawsuit against Solaria Corporation in Fairfax Circuit Court (the “Court”) in Fairfax, Virginia. On July 27, 2023, Siemens Government Technologies moved to amend the complaint to add Siemens Industry Inc. as a co-plaintiff. This motion was granted on August 25, 2023. On October 23, 2023, Siemens Government Technologies and Siemens Industry Inc. (collectively, “Siemens”) and Solaria Corporation stipulated to add Solar CA, LLC as a co-defendant. Solaria Corporation and Solar CA, LLC (collectively, the “Subsidiaries”) are both wholly-owned subsidiaries of the Company. In the lawsuit, Siemens alleged that the Subsidiaries breached express and implied warranties under a purchase order that Siemens placed with the Subsidiaries for a solar module system. Siemens claimed damages of approximately $6.9 million, inclusive of amounts of the Subsidiaries’ indemnity obligations to Siemens, plus attorneys’ fees.

On February 22, 2024, the Court issued an order against the Subsidiaries which awarded Siemens approximately $6.9 million, inclusive of the amounts of the Subsidiaries’ indemnity obligations to Siemens, plus attorneys’ fees, the amount of which would be determined at a later hearing. On March 15, 2024, Siemens filed a motion seeking to recover $2.67 million for attorneys’ fees, expenses, and pre-and post-judgment interest. The Company opposed Siemens’ motion for attorneys’ fees, expenses, and pre- and post-judgment interest on April 5, 2024. On June 17, 2024, the Court entered a final order which awarded Siemens a total of $2.0 million in attorneys’ fees and costs. The Company has appealed these judgments.

In addition to the above, on August 19, 2024, Siemens applied for the enforcement to a sister state judgment in the Superior Court of Alameda, California and the court entered a judgement in favor of Siemens. On December 9, 2024, Siemens moved to amend the judgment to add the Company as a judgement debtor. The Subsidiaries opposed the Siemens motion. On June 30, 2025, the California court found that the Company should be added as a judgment debtor party in California. In addition, the parties argued the appeal of the underlying Virginia litigation on July 24, 2025. On September 23, 2025, the Virginia Court of Appeals issued a decision on the appeal, affirming the original lower court decision and judgment against the Company. The Alameda County litigation has continued with several upcoming deadlines related to the already-noticed appeal and Siemens’ motion for fees and costs. The Company continues pursuing global settlement negotiations with Siemens.

The Company recognized $6.9 million as a legal settlement loss related to this litigation as of December 31, 2023. In the thirteen week period ended September 28, 2025, the Company recorded an additional $1.1 million of expense within discontinued operations in its unaudited condensed consolidated statement of operations and comprehensive (loss) to bring the liability for legal settlement with Siemens to $8.0 million as of September 28, 2025. This liability is included within accrued expenses and other current liabilities in the Company’s unaudited condensed consolidated balance sheets.

The Company recorded expense of $2.0 million within discontinued operations in its unaudited condensed consolidated statement of operations and comprehensive (loss) in the thirty-nine week period ended September 29, 2024, for attorneys’ fees, expenses, and pre-judgment interest, and this liability was also recorded within accrued expenses and other current liabilities in the Company’s unaudited condensed consolidated balance sheets as of September 28, 2025, and December 29, 2024.

On December 4, 2025, the Company entered into a Settlement Agreement (“Settlement Agreement”) with Siemens to resolve a case in the Court and other related cases as well as to resolve potential claims related to Siemens’ Atwater Wastewater Treatment Plant. In exchange for full releases, the Company agreed to pay Siemens $9.5 million spread across four payments to be made at the end of each calendar quarter during 2026. If the Company successfully engages in any form of new financing or new debt worth $1.0 million or more, or successfully obtains shareholder approval for the issuance of additional shares in connection with the raise of additional funds and/or any merger or acquisition activity, the next due quarterly payment to Siemens (if any) becomes immediately due and payable. The settlement payment to Siemens is secured by a first-priority continuing security interest in $9.5 of Company collateral. This security interest is reduced on a one-to-one basis as the settlement payments are made.

Letters of credit

The Company had $3.5 million of outstanding letters of credit related to normal business transactions as of September 28, 2025 and December 29, 2024. These agreements require the Company to maintain specified amounts of cash as collateral in segregated accounts to support the letters of credit issued thereunder. As discussed in Note 3 – Basis of Presentation and Summary of Significant Accounting Policies, the cash collateral in these restricted cash accounts was $3.8 million at each of September 28, 2025 and December 29, 2024.

Business Combinations (Tables)

9 Months Ended

Sep. 28, 2025

Business Combinations [Abstract]

Schedule of Provisional and Final Fair Values of Identifiable Assets Acquired and Liabilities

The following table summarizes the provisional and final fair values of identifiable assets acquired and liabilities assumed and measurement period adjustments (in thousands):

	Provisional fair values			Measurement period adjustment			Final fair values as of September 28, 2025
Net assets acquired:
Cash	$	1,000		$	—		$	1,000
Accounts receivable		16,614			—			16,614
Inventories		27,706			20,682			48,388
Prepaid expenses and other current assets		2,219			—			2,219
Property and equipment		5,867			—			5,867
Operating lease right-of-use assets		2,506			—			2,506
Other noncurrent assets		541			—			541
Intangibles		18,100			(2,206	)		15,894
Deferred revenue		(7,361	)		—			(7,361	)
Accounts payable		(5,270	)		—			(5,270	)
Accrued expenses and other current liabilities		(13,955	)		—			(13,955	)
Operating lease liabilities		(2,963	)		—			(2,963	)
Other long-term liabilities		(8,980	)		—			(8,980	)
Fair value of net tangible assets acquired		36,024			18,476			54,500
Goodwill recognized		18,476			(18,476	)		—
Consideration transferred	$	54,500		$	—		$	54,500

The following table summarizes the provisional fair value of identifiable assets acquired and liabilities assumed (in thousands):

Net assets acquired (As Restated):
Accounts receivable	$	257
Prepaid expenses and other current assets		387
Property and equipment		241
Operating lease right-of-use assets		313
Other noncurrent assets		552
Intangibles		25,922
Contract liabilities		(10,437	)
Accounts payable		(184	)
Accrued expenses and other current liabilities		(1,322	)
Operating lease liabilities		(215	)
Fair value of net tangible assets acquired		15,514
Goodwill recognized		42,275
Consideration transferred	$	57,789

Schedule of Total Consideration is Summarized

The total consideration is summarized as follows (in thousands):

Consideration
Cash	$	20,689
Seller note		20,000
Equity 3.3 million shares of the Company’s common stock		5,700
Contingent consideration arrangement – up to 6.6 million shares of the Company’s common stock		11,400
Fair value of total consideration transferred	$	57,789

Schedule of Intangible Assets Acquired and Estimated Useful Lives

As of the date of acquisition the intangible assets acquired and estimated useful lives were as follows:

	Estimated useful life	Amount
Customer related intangible	1 year	$	9,279
Trademark - Sunder	5 years		2,427
Developed technology - Sunder	5 years		14,216
Balance at end of period		$	25,922

Schedule of Pro Forma

The pro forma results do not necessarily reflect the actual results of operations of the combined business (in thousands).

	Thirty-Nine Weeks Ended
	September 28,			September 29,
	2025			2024
Pro forma revenue	$	276,353		$	319,639
Pro forma net loss from continuing operations		(45,402	)		(364,510	)

- Definition

Tabular disclosure of business combination. Includes, but is not limited to, recognized asset and liability.

+ References + Details

Fair Value Measurements

9 Months Ended

Sep. 28, 2025

Fair Value Measurements [Abstract]

Fair Value Measurements

(5) Fair Value Measurements

The following table sets forth the Company’s financial assets and liabilities that are measured at fair value, on a recurring basis (in thousands):

	As of September 28, 2025
	Level 1		Level 2		Level 3		Total
Financial Assets		(As Restated)

Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 Notes derivative liability	$	—	$	—	$	21,664	$	21,664
July 2024 Notes derivative liability – related parties		—		—		13,940		13,940
September 2024 derivative liability		—		—		52,708		52,708
September 2024 derivative liability – related parties		—		—		6,515		6,515
July 2025 Note derivative liability– related party		—		—		3,468		3,468
September 2025 Notes derivative liability		—		—		16,274		16,274
Forward purchase agreement liabilities		—		—		4,301		4,301
Public warrants		2,588		—		—		2,588
Private placement warrants		—		—		1,880		1,880
Working capital warrants		—		—		215		215
SAFE Agreement with related party		—		—		497		497
Total	$	2,588	$	—	$	121,462	$	124,050

	As of December 29, 2024
	Level 1		Level 2		Level 3		Total
Financial Assets
Restricted cash	$	3,841	$	—	$	—	$	3,841
Total	$	3,841	$	—	$	—	$	3,841
Financial Liabilities
July 2024 Notes derivative liability	$	—	$	—	$	13,563	$	13,563
July 2024 Notes derivative liability – related parties		—		—		21,127		21,127
September 2024 Notes derivative liability		—		—		55,474		55,474
September 2024 Notes derivative liability – related parties		—		—		6,958		6,958
Forward purchase agreement liabilities ⁽¹⁾		—		—		3,494		3,494
Public warrants		862		—		—		862
Private placement warrants		—		—		627		627
Working capital warrants		—		—		72		72
SAFE Agreement with related party		—		—		384		384
Total	$	862	$	—	$	101,699	$	102,561

⁽¹⁾	Includes $1.3 million due to related parties as of and December 29, 2024.

Subsequent to issuance, changes in the fair value of the derivative liabilities, liability classified warrants, forward purchase agreements and SAFEs are recorded within Other expense, net in the Company’s unaudited condensed consolidated statements of operations and comprehensive loss.

Derivative liabilities

The Company issued derivative liabilities in conjunction with the issuance of certain convertible notes in July 2024 September 2024 and July 2025 (as defined in Note 10 – Borrowings and Derivative Liabilities). The Company valued the derivative liabilities as of September 28, 2025, and December 29, 2024 using a binomial lattice model, which includes Level 3 unobservable inputs. The key inputs used were dividend yield, the Company’s common stock price, volatility, and risk-free rate of the derivative liabilities.

The July 2024 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025			December 29, 2024
Coupon rate		12.0	%		12.0	%
Conversion rate		595.24			595.24
Conversion price	$	1.68		$	1.68
Common stock price	$	1.77		$	1.81
Risk-free rate		3.7	%		4.43	%
Volatility		73.9	%		62.0	%
Dividend yield		0.0	%		0.0	%

The September 2024 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025			December 29, 2024
Coupon rate		7.0	%		7.0	%
Conversion rate		467.84			467.84
Conversion price	$	2.14		$	2.14
Common stock price	$	1.77		$	1.81
Risk-free rate		3.7	%		4.43	%
Volatility		77.8	%		66.6	%
Dividend yield		0.0	%		0.0	%

The July 2025 Note derivative liability valuation included the following inputs:

	As of
	September 28, 2025
Coupon rate		12.0	%
Conversion rate		558.66
Conversion price	$	1.79
Common stock price	$	1.77
Risk-free rate		3.7	%
Volatility		75.1	%
Dividend yield		0.0	%

The September 2025 Notes derivative liability valuation included the following inputs:

	As of
	September 28, 2025
Coupon rate		7.0	%
Conversion rate		467.84
Conversion price	$	2.14
Common stock price	$	1.77
Risk-free rate		3.7	%
Volatility		77.8	%
Dividend yield		0.0	%

Public warrants

The public warrants are measured at fair value on a recurring basis. The public warrants were valued based on the closing price of the publicly traded instrument and therefore are considered a Level 1 instrument in the fair value hierarchy.

Private placement and working capital warrants

The private placement and working capital warrants are measured at fair value. The Company valued the private placement and working capital warrants, based on a Black-Scholes Option Pricing Method, which included the following inputs:

	As of
	September 28,			December 29,
	2025			2024
Expected term		2.81 years			3.56 years
Expected volatility		169.0	%		68.1	%
Risk-free rate		3.65	%		4.39	%
Expected dividend yield		0.00	%		0.00	%

Forward purchase agreement liabilities

In the Third Quarter 2025, the Company entered into individual amendments with Meteora Special Opportunity Fund I, LP (“MSOF”), Meteora Capital Partners, LP (“MCP”), and Meteora Select Trading Opportunities Master, LP (“MSTO”) (with MSOF, MCP, and MSTO collectively as “Meteora”), Sandia Investment Management LP (“Sandia”) and Polar (collectively, the “FPA Amendments”) which among other things, extended the valuation date applicable to each of the FPAs.

FPAs are measured at fair value on a recurring basis using a Monte Carlo simulation analysis. The expected volatility is determined based on the historical equity volatility of comparable companies over a period that matches the simulation period, which included the following inputs:

	As of
	September 28,			December 29,
	2025			2024
VWAP	$	1.86		$	1.78
Simulation period		0.80 years			0.55 years
Risk-free rate		3.73	%		4.28	%
Volatility		84.8	%		117	%

SAFE agreement with related party

The SAFE Agreement was valued based on a conversion probability of 50% based on historical SAFE agreements and a 50% discount rate at the time of conversion as of September 28, 2025, and December 29, 2024.

Financial liabilities not measured at fair value:

The July 2024 Notes, the September 2024 Notes, the July 2025 Note, and the September 2025 Notes were fair valued using a binomial lattice model, which includes Level 3, unobservable inputs. The key inputs used are consistent with those used to fair value the derivative liabilities as discussed under Derivative Liabilities above. The following table sets forth the Company’s financial liabilities that were not measured at fair value, on a non-recurring basis (in thousands):

	As of September 28 2025
	Principal amount ⁽¹⁾		Unamortized debt discount and debt issuance costs			Net carrying amount excluding capitalized interest ⁽¹⁾		Fair value
	(As Restated)
12.0% senior unsecured convertible notes
July 2024 Notes	$	36,576	$	(16,325	)	$	20,251	$	33,130
July 2024 Notes – related parties		18,000		(10,332	)		7,668		23,099
Subtotal July 2024 Notes		54,576		(26,657	)		27,919		56,229
July 2025 Note – related party		5,000		(3,627	)		1,373		6,250
Subtotal – 12% senior unsecured convertible notes		59,576		(30,284	)		29,292		62,479

7.0% senior unsecured convertible notes
September 2024 Notes		71,250		(56,099	)		15,151		77,744
September 2024 Notes – related parties		8,750		(6,934	)		1,816		9,548
Subtotal September 2024 Notes		80,000		(63,033	)		16,967		87,292
September 2025 Note		22,000		(18,932	)		3,068		25,090
Subtotal – 7% senior unsecured convertible notes		102,000		(81,965	)		20,035		112,382
Total (As Restated)	$	161,576	$	(112,249	)	$	49,327	$	174,861

	As of December 29, 2024
	Principal amount ⁽¹⁾		Unamortized debt discount and debt issuance costs			Net carrying amount excluding capitalized interest ⁽¹⁾		Fair value
12.0% senior unsecured convertible notes
July 2024 Notes	$	22,765	$	(10,874	)	$	11,891	$	21,390
July 2024 Notes – related parties		33,969		(16,877	)		17,092		33,323
Subtotal July 2024 Notes		56,734		(27,751	)		28,983		54,713

7.0% senior unsecured convertible notes
September 2024 Notes		71,800		(66,164	)		5,636		77,245
September 2024 Notes – related parties		8,000		(7,524	)		476		8,583
Subtotal September 2024 Notes		79,800		(73,688	)		6,112		85,828
Total	$	136,534	$	(101,439	)	$	35,095	$	140,541

(1)

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 107
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-107

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 940
-SubTopic 820
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478119/940-820-50-1

+ Details

Other Intangible Assets - Schedule of Other Intangible Assets with Finite Useful Lives (Details) - Other Intangible Asset [Member] - USD ($)
$ in Thousands

Sep. 28, 2025

Dec. 29, 2024

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

$ 41,816

$ 18,100

Accumulated Amortization

(2,860)

(715)

Net Book Value

38,956

17,385

Customer related intangible [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

9,279

Accumulated Amortization

Net Book Value

9,279

Trademark – Blue Raven Solar [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

^[1]

7,094

8,400

Accumulated Amortization

^[1]

(840)

(210)

Net Book Value

^[1]

6,254

8,190

Trademark – SunPower [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

^[1]

4,300

5,200

Accumulated Amortization

^[1]

(520)

(130)

Net Book Value

^[1]

3,780

5,070

Trademark – Sunder [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

2,427

Accumulated Amortization

Net Book Value

2,427

Developed technology [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

^[1]

4,500

Accumulated Amortization

^[1]

(1,500)

(375)

Net Book Value

^[1]

3,000

$ 4,125

Developed technology – Sunder [Member]

Schedule of Other Intangible Assets with Finite Useful Lives [Line Items]

Gross Carrying Amount

14,216

Accumulated Amortization

Net Book Value

$ 14,216

[1]	The gross carrying amounts as of September 28, 2025 reflect the final allocation of the purchase consideration in connection with the SunPower Acquisition. The gross carrying amounts as of December 29, 2024 were provisional amounts.

Commitments and Contingencies - Schedule of Warranty Provision (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Dec. 29, 2024
Schedule of Warranty Provision [Line Items]
Warranty provision, beginning of period	$ 5,968	$ 4,849
Accruals for new warranties issued	3,238	830
Settlements, other	(5,837)	(932)
Warranty provision, end of period	3,369	4,747
Warranty provision, noncurrent	2,140	3,322	$ 3,437
Warranty Provision, Current [Member]
Schedule of Warranty Provision [Line Items]
Warranty provision, current	$ 1,229	$ 1,425

Basic and Diluted Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Numerator:
Net loss from continuing operations	$ (12,590)	$ (77,958)	$ (35,115)	$ (101,433)
Net loss from discontinued operations	(1,100)		(1,100)	(2,007)
Net loss	$ (13,690)	$ (77,958)	$ (36,215)	$ (103,440)
Denominator:
Weighted average common shares outstanding, basic	84,593,644	75,348,627	81,993,090	61,868,747
Weighted average common shares outstanding, diluted	84,593,644	75,348,627	81,993,090	61,868,747
Net loss per share, basic and diluted:
Continuing operations, basic	$ (0.15)	$ (1.03)	$ (0.43)	$ (1.64)
Continuing operations, diluted	(0.15)	(1.03)	(0.43)	(1.64)
Discontinued operations, basic	(0.01)		(0.01)	(0.03)
Discontinued operations, diluted	(0.01)		(0.01)	(0.03)
Net loss, Basic	(0.16)	(1.03)	(0.44)	(1.67)
Net loss, Diluted	$ (0.16)	$ (1.03)	$ (0.44)	$ (1.67)

Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Components of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
Schedule of Components of Prepaid Expenses and Other Current Assets [Abstract]
Deferred costs	$ 19,647	$ 3,759
Other	93	4,447
Total prepaid expenses and other current assets	$ 19,740	$ 8,206

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands

9 Months Ended

Sep. 28, 2025

Dec. 29, 2024

Schedule of Accrued Expenses and Other Current Liabilities [Abstract]

Accrued compensation and benefits

$ 5,983

$ 6,619

Professional fees

3,819

8,028

Accrued legal settlements

9,153

7,700

Accrued rebates and credits

5,769

7,641

Accrued interest

^[1]

4,471

4,523

Deferred consideration – related party

5,700

Investor financing deposit – related party

^[2]

2,000

Other accrued liabilities

^[3]

20,355

21,570

Total accrued expenses and other current liabilities

^[4]

$ 57,250

$ 56,081

[1]	Includes related party accrued interest of $1.3 million and $2.2 million as of September 28, 2025 and December 29, 2024, respectively.
[2]	The Company received $2.0 million from the Rodgers Massey Revocable Living Trust (“Rodgers Revocable Trust”) in the period ended September 28, 2025.
[3]	No individual items exceed 5% of total current liabilities.
[4]	Includes accrued interest due to related parties of $1.3 million and $2.2 million as of September 28, 2025, and December 29, 2024, respectively. Includes investor financing deposit of $2.0 million as of September 28, 2025.

Business Combinations - Schedule of Provisional and Final Fair Values of Identifiable Assets Acquired and Liabilities (Details) $ in Thousands	Sep. 28, 2025 USD ($)
Net assets acquired:
Accounts receivable	$ 257
Prepaid expenses and other current assets	387
Property and equipment	241
Operating lease right-of-use assets	313
Other noncurrent assets	552
Intangibles	25,922
Contract liabilities	(10,437)
Accounts payable	(184)
Accrued expenses and other current liabilities	(1,322)
Operating lease liabilities	(215)
Fair value of net tangible assets acquired	15,514
Goodwill recognized	42,275
Consideration transferred	57,789
SunPower Acquisition [Member]
Net assets acquired:
Cash	1,000
Accounts receivable	16,614
Inventories	48,388
Prepaid expenses and other current assets	2,219
Property and equipment	5,867
Operating lease right-of-use assets	2,506
Other noncurrent assets	541
Intangibles	15,894
Deferred revenue	(7,361)
Accounts payable	(5,270)
Accrued expenses and other current liabilities	(13,955)
Operating lease liabilities	(2,963)
Other long-term liabilities	(8,980)
Fair value of net tangible assets acquired	54,500
Goodwill recognized
Consideration transferred	54,500
Provisional Fair Values [Member] \| SunPower Acquisition [Member]
Net assets acquired:
Cash	1,000
Accounts receivable	16,614
Inventories	27,706
Prepaid expenses and other current assets	2,219
Property and equipment	5,867
Operating lease right-of-use assets	2,506
Other noncurrent assets	541
Intangibles	18,100
Deferred revenue	(7,361)
Accounts payable	(5,270)
Accrued expenses and other current liabilities	(13,955)
Operating lease liabilities	(2,963)
Other long-term liabilities	(8,980)
Fair value of net tangible assets acquired	36,024
Goodwill recognized	18,476
Consideration transferred	54,500
Measurement Period Adjustment [Member] \| SunPower Acquisition [Member]
Net assets acquired:
Cash
Accounts receivable
Inventories	20,682
Prepaid expenses and other current assets
Property and equipment
Operating lease right-of-use assets
Other noncurrent assets
Intangibles	(2,206)
Deferred revenue
Accounts payable
Accrued expenses and other current liabilities
Operating lease liabilities
Other long-term liabilities
Fair value of net tangible assets acquired	18,476
Goodwill recognized	(18,476)
Consideration transferred

Business Combinations - Schedule of Total Consideration is Summarized (Details) - Sunder Energy LLC [Member] $ in Thousands	9 Months Ended
	Sep. 28, 2025 USD ($)
Consideration
Cash	$ 20,689
Equity 3.3 million shares of the Company’s common stock	5,700
Contingent consideration arrangement – up to 6.6 million shares of the Company’s common stock	11,400
Fair value of total consideration transferred	57,789
Note payable to Seller [Member]
Consideration
Seller note	$ 20,000

Unaudited Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands

Sep. 28, 2025

Dec. 29, 2024

Current assets:

Cash and cash equivalents

$ 5,072

$ 13,378

Accounts receivable, net

73,047

51,908

Inventories

8,570

22,110

Prepaid expenses and other current assets

19,740

8,206

Total current assets

106,429

95,602

Restricted cash

3,841

Property and equipment, net

3,670

5,493

Operating lease right-of-use assets

2,528

3,041

Intangible assets, net

38,956

17,385

Goodwill

42,275

18,476

Other noncurrent assets

1,085

628

Total assets

198,784

144,466

Current liabilities:

Accounts payable

19,857

7,980

Accrued expenses and other current liabilities

^[1]

57,250

56,081

Current portion of notes payable

2,786

Contract liabilities

13,261

10,003

Forward purchase agreement liabilities

4,301

2,220

Total current liabilities

119,452

79,442

Warranty provision, noncurrent

2,140

3,437

Warrant liability

4,683

1,561

Contract liabilities, noncurrent

1,713

918

Notes payable and derivative liabilities, net of current

139,454

92,638

Operating lease liabilities, net of current portion

1,335

2,263

Other long-term liabilities

12,869

8,553

Total liabilities

316,445

242,005

Commitments and contingencies (Note 13)

Stockholders’ (deficit):

Common stock, $0.0001 par value; Authorized 1,000,000,000 shares as of September 28, 2025, and December 29, 2024; issued and outstanding 88,714,258 and 73,784,645 shares as of September 28, 2025, and December 29, 2024, respectively.

Additional paid-in capital

329,754

313,661

Accumulated other comprehensive income

165

Accumulated deficit

(447,594)

(411,379)

Total stockholders’ deficit

(117,661)

(97,539)

Total liabilities and stockholders’ deficit

198,784

144,466

Related Party

Current liabilities:

Notes payable to related parties

21,500

1,500

SAFE Agreement with related party

497

384

Forward purchase agreement liabilities with related parties

1,274

Notes payable and derivative liabilities with related parties, net of current

$ 34,799

$ 53,193

[1]	Includes accrued interest due to related parties of $1.3 million and $2.2 million as of September 28, 2025, and December 29, 2024, respectively. Includes investor financing deposit of $2.0 million as of September 28, 2025.

Business Combinations - Schedule of Pro Forma (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024
Schedule of Pro Forma [Abstract]
Pro forma revenue	$ 276,353	$ 319,639
Pro forma net loss from continuing operations	$ (45,402)	$ (364,510)

Other Expense, Net - Schedule of Other Expense, Net (Details) - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Sep. 28, 2025

Sep. 29, 2024

Schedule of Other Expense Net [Abstract]

Loss on issuance of derivative liabilities

^[1]

$ (24,688)

Change in fair value of derivative liabilities

^[2]

(2,034)

(37,875)

1,639

(37,875)

Change in fair value of forward purchase agreement liabilities

^[3]

(2,420)

7,728

(807)

4,906

Change in fair value of SAFE Agreement with related party

(79)

(900)

(113)

(900)

Change in fair value of FACT public, private placement and working capital warrants

(78)

(6,052)

(3,122)

(6,295)

Change in fair value of Carlyle Warrants with related party

2,869

Change in fair value of redeemable convertible preferred stock warrant liability

1,310

Loss on conversion of SAFE Agreements to common stock with related party

(1,250)

Other financing costs

(3,812)

Other, net

^[4]

355

(85)

679

(499)

Total Other Expense, net

^[5]

$ (4,256)

$ (65,684)

$ (1,724)

$ (66,234)

[1]	Includes $3.0 million of related party expense in each of the thirteen and thirty-nine week periods ended September 29, 2024.
[2]	Includes a loss of $0.3 million and a gain of $1.8 million due to related parties in the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Includes a loss of $22.8 million due to related parties in each of the thirteen and thirty-nine week periods ended September 29, 2024. Refer to Note 10 – Borrowings and Derivative Liabilities for details.
[3]	Includes a gain of zero and $0.1 million due to related parties for the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Includes a gain from related parties of $2.8 million and $1.8 million due to related parties in the thirteen and thirty-nine week periods ended September 29, 2024, respectively.
[4]	Includes zero and $0.1 million of income due to related parties in the thirteen and thirty-nine week periods ended September 28, 2025, respectively.
[5]	Includes the following related party transactions (in millions):

Unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands

3 Months Ended

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Sep. 28, 2025

Sep. 29, 2024

Income Statement [Abstract]

Revenues

$ 64,487

$ 5,536

$ 209,015

$ 20,068

Cost of revenues

^[1]

32,431

8,693

125,799

21,834

Gross profit (loss)

32,056

(3,157)

83,216

(1,766)

Operating expenses:

Sales commissions

8,170

7,270

24,909

11,691

Sales and marketing

5,819

1,093

21,505

3,762

General and administrative

19,663

18,450

51,045

29,789

Total operating expenses

33,652

26,813

97,459

45,242

Loss from continuing operations

(1,596)

(29,970)

(14,243)

(47,008)

Interest expense

^[2]

(6,738)

(2,338)

(19,151)

(8,230)

Interest income

102

Other expense, net

^[3]

(4,256)

(65,684)

(1,724)

(66,234)

Gain on troubled debt restructuring

19,948

Total other expense, net

(10,994)

(47,988)

(20,872)

(54,414)

Loss from continuing operations before income taxes

(12,590)

(77,958)

(35,115)

(101,422)

Income tax provision

(11)

Net loss from continuing operations

(12,590)

(77,958)

(35,115)

(101,433)

Loss from discontinued operations, net of tax

(1,100)

(2,007)

Net loss from discontinued operations, net of taxes

(1,100)

(2,007)

Net loss

(13,690)

(77,958)

(36,215)

(103,440)

Other comprehensive income:

Foreign currency translation adjustment

Comprehensive loss (net of tax)

$ (13,690)

$ (77,958)

$ (36,215)

$ (103,418)

Net loss per share attributable to common stockholders, basic (in Dollars per share)

$ (0.15)

$ (1.03)

$ (0.43)

$ (1.64)

Net loss per share attributable to common stockholders, diluted (in Dollars per share)

(0.15)

(1.03)

(0.43)

(1.64)

Net loss from discontinued operations per share attributable to common stockholders, basic (in Dollars per share)

(0.01)

(0.03)

Net loss from discontinued operations per share attributable to common stockholders, diluted (in Dollars per share)

(0.01)

(0.03)

Net loss per share attributable to common stockholders, basic (in Dollars per share)

(0.16)

(1.03)

(0.44)

(1.67)

Net loss per share attributable to common stockholders, diluted (in Dollars per share)

$ (0.16)

$ (1.03)

$ (0.44)

$ (1.67)

Weighted-average shares used to compute net loss per share attributable to common stockholders, basic (in Shares)

84,593,644

75,348,627

81,993,090

61,868,747

Weighted-average shares used to compute net loss per share attributable to common stockholders, diluted (in Shares)

84,593,644

75,348,627

81,993,090

61,868,747

[1]	Cost of revenue with related party was $0.1 million and $0.4 million in the thirteen week periods ended September 28, 2025 and September 29, 2024, respectively. Cost of revenue with related party was $0.5 million in each of the thirteen and thirty-nine week periods ended September 29, 2024, respectively. Refer to Note 17 – Related Party Transactions for details.
[2]	Includes related party interest expense and amortization of debt issuance costs of $1.7 million and $1.5 million in the thirteen week periods ended September 28, 2025, and September 29, 2024, respectively. Includes related party interest expense and amortization of debt issuance costs of $4.5 million and $5.6 million in the thirty-nine weeks periods ended September 28, 2025, and September 29, 2024, respectively.
[3]	Includes the following related party transactions (in millions):

Other Expense, Net

9 Months Ended

Sep. 28, 2025

Other Expense, Net [Abstract]

Other Expense, Net

(8) Other Expense, Net

Other expense, net consists of the following (in thousands):

	Thirteen Weeks Ended						Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024			September 28, 2025			September 29, 2024
Loss on issuance of derivative liabilities⁽¹⁾	$	—		$	(24,688	)	$	—		$	(24,688	)
Change in fair value of derivative liabilities⁽²⁾		(2,034	)		(37,875	)		1,639			(37,875	)
Change in fair value of forward purchase agreement liabilities⁽³⁾		(2,420	)		7,728			(807	)		4,906
Change in fair value of SAFE Agreement with related party		(79	)		(900	)		(113	)		(900	)
Change in fair value of FACT public, private placement and working capital warrants		(78	)		(6,052	)		(3,122	)		(6,295	)
Change in fair value of Carlyle Warrants with related party		—			—			—			2,869
Change in fair value of redeemable convertible preferred stock warrant liability		—			—			—			1,310
Loss on conversion of SAFE Agreements to common stock with related party		—			—			—			(1,250	)
Other financing costs		—			(3,812	)		—			(3,812	)
Other, net⁽⁴⁾		355			(85	)		679			(499	)
Total Other Expense, net	$	(4,256	)	$	(65,684	)	$	(1,724	)	$	(66,234	)

(1)	Includes $3.0 million of related party expense in each of the thirteen and thirty-nine week periods ended September 29, 2024.

(2)

(3)

(4)	Includes zero and $0.1 million of income due to related parties in the thirteen and thirty-nine week periods ended September 28, 2025, respectively.

Borrowings and Derivative Liabilities - Schedule of Borrowings and Derivative Liabilities (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
12.0% senior unsecured convertible notes
Total Notes payable	$ 198,539	$ 147,331
Less current portion	(24,286)	(1,500)
Notes payable and convertible notes, net of current portion	174,253	145,831
As classified in the unaudited condensed consolidated balance sheets
Notes payable and derivative liabilities	139,454	92,638
July 2024 Notes [Member]
12.0% senior unsecured convertible notes
Total Notes payable	33,394	17,965
July 2024 Notes derivative liability [Member]
12.0% senior unsecured convertible notes
Total Notes payable	21,664	13,563
July 2024 Notes – related parties [Member]
12.0% senior unsecured convertible notes
Total Notes payable	7,668	24,632
July 2024 derivative liability – related parties [Member]
12.0% senior unsecured convertible notes
Total Notes payable	13,940	21,127
July 2025 Note – related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	1,373
July 2025 Note – derivative liability – related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	3,468
September 2024 Notes [Member]
12.0% senior unsecured convertible notes
Total Notes payable	15,151	5,636
September 2024 Notes derivative liability [Member]
12.0% senior unsecured convertible notes
Total Notes payable	52,708	55,474
September 2024 Notes – related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	1,816	476
September 2024 Notes – derivative liability – related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	6,515	6,958
September 2025 Notes [Member]
12.0% senior unsecured convertible notes
Total Notes payable	3,068
September 2025 Notes Derivative Liability [Member]
12.0% senior unsecured convertible notes
Total Notes payable	16,274
Note payable to Seller – related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	20,000
Loan with related party [Member]
12.0% senior unsecured convertible notes
Total Notes payable	1,500	1,500
Notes Payable [Member]
12.0% senior unsecured convertible notes
Total Notes payable	21,500	1,500
As classified in the unaudited condensed consolidated balance sheets
Notes payable and derivative liabilities	139,454	92,638
Notes payable and derivative liabilities with related parties, net of current portion	34,799	53,193
Total Notes payable	198,539	$ 147,331
Current Portion of Notes Payable [Member]
As classified in the unaudited condensed consolidated balance sheets
Current portion of notes payable	$ 2,786

Stock-Based Compensation - Schedule of RSU Activity (Details) - Restricted Stock Units [Member]	9 Months Ended
	Sep. 28, 2025 $ / shares shares
Schedule of RSU Activity [Line Items]
Number of RSUs, Unvested, Beginning balance \| shares	1,982,135
Weighted Average Grant Date Fair Value, Unvested, Beginning balance \| $ / shares	$ 1.79
Number of RSUs, Granted \| shares	22,235,871
Weighted Average Grant Date Fair Value, Granted \| $ / shares	$ 1.73
Number of RSUs, Vested and released \| shares	(3,864,608)
Weighted Average Grant Date Fair Value, Vested and released \| $ / shares	$ 1.75
Number of RSUs, Cancelled or forfeited \| shares	(3,213,876)
Weighted Average Grant Date Fair Value, Cancelled or forfeited \| $ / shares	$ 1.76
Number of RSUs, Unvested, Ending balance \| shares	17,139,522
Weighted Average Grant Date Fair Value, Unvested, Ending balance \| $ / shares	$ 1.73

Other Intangible Assets

9 Months Ended

Sep. 28, 2025

Other Intangible Assets [Abstract]

Other Intangible Assets

(6) Other Intangible Assets

The Company’s other intangible assets were acquired in connection with the SunPower Acquisition and Sunder acquisition transactions. The following table represents the Company’s other intangible assets with finite useful lives as of September 28, 2025, and December 29, 2024 (in thousands):

As of September 28, 2025	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Customer related intangible	$	9,279	$	—		$	9,279
Trademark – Blue Raven Solar ⁽¹⁾		7,094		(840	)		6,254
Trademark – SunPower ⁽¹⁾		4,300		(520	)		3,780
Trademark – Sunder		2,427		—			2,427
Developed technology ⁽¹⁾		4,500		(1,500	)		3,000
Developed technology – Sunder		14,216		—			14,216
Total	$	41,816	$	(2,860	)	$	38,956

As of December 29, 2024	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Trademark – Blue Raven Solar ⁽¹⁾	$	8,400	$	(210	)	$	8,190
Trademark – SunPower ⁽¹⁾		5,200		(130	)		5,070
Developed technology ⁽¹⁾		4,500		(375	)		4,125
Total	$	18,100	$	(715	)	$	17,385

(1)

The gross carrying amounts as of September 28, 2025 reflect the final allocation of the purchase consideration in connection with the SunPower Acquisition. The gross carrying amounts as of December 29, 2024 were provisional amounts.

Aggregate amortization expense of intangible assets was $0.7 million and $2.1 million for the thirteen and thirty-nine week periods ended September 28, 2025, respectively. Amortization expense was zero in each of the thirteen and thirty-nine week periods ended September 29, 2024. Amortization expense is recognized within cost of revenues and general and administrative expenses in the accompany unaudited condensed consolidated statements of operations and comprehensive loss.

Basic and Diluted Net Loss Per Share

9 Months Ended

Sep. 28, 2025

Basic and Diluted Net Loss Per Share [Abstract]

Basic and Diluted Net Loss Per Share

(15) Basic and Diluted Net Loss Per Share

The Company uses the two-class method to calculate net loss per share. No dividends were declared or paid in the thirteen and thirty-nine week periods ended September 28, 2025 and September 29, 2024.

	Thirteen Weeks Ended						Thirty-Nine Weeks Ended
	September 28, 2025			September 29, 2024			September 28, 2025			September 29, 2024
	(As Restated)						(As Restated)
Numerator:
Net loss from continuing operations	$	(12,590	)	$	(77,958	)	$	(35,115	)	$	(101,433	)
Net loss from discontinued operations		(1,100	)		—			(1,100	)		(2,007	)
Net loss	$	(13,690	)	$	(77,958	)	$	(36,215	)	$	(103,440	)
Denominator:
Weighted average common shares outstanding, basic and diluted		84,593,644			75,348,627			81,993,090			61,868,747
Net loss per share, basic and diluted:
Continuing operations	$	(0.15	)	$	(1.03	)	$	(0.43	)	$	(1.64	)
Discontinued operations		(0.01	)		—			(0.01	)		(0.03	)
Net loss	$	(0.16	)	$	(1.03	)	$	(0.44	)	$	(1.67	)

The computation of basic net loss per share attributable to common stockholders is inclusive of warrants with an insignificant exercise price. The Company’s calculation of the weighted average shares outstanding is inclusive of 234,610 warrants with an insignificant exercise price (which assumes that the warrants were outstanding as of the beginning of the period or the date of the grant, whichever is earlier) for each of the thirteen and thirty-nine week periods ended September 28, 2025, respectively. The computation of diluted net loss per share attributable to common stockholders is the same for the thirteen and thirty-nine week periods ended September 28, 2025 and September 29, 2024 because the inclusion of potential shares of common stock would have been anti-dilutive for the periods presented.

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
Common stock warrants		193,740		31,670,265		197,578		31,670,265
Stock options and RSUs issued and outstanding		15,338,613		14,170,385		9,850,548		14,170,385
Convertible notes		77,821,528		58,579,636		77,821,528		58,579,636
Third SAFE Agreement		2,750,000		—		2,750,000		—
Deferred consideration shares		6,666,666		—		6,666,666		—
Total potential common shares excluded from diluted net loss per share		102,770,547		104,420,286		97,286,320		104,420,286

Fair Value Measurements - Schedule of Derivative Liability Valuation Inputs (Details)	Sep. 28, 2025	Dec. 29, 2024
Coupon rate [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	12	12
Coupon rate [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	7	7
Coupon rate [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	12
Coupon rate [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	7
Conversion rate [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	595.24	595.24
Conversion rate [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	467.84	467.84
Conversion rate [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	558.66
Conversion rate [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	467.84
Conversion price [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.68	1.68
Conversion price [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	2.14	2.14
Conversion price [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.79
Conversion price [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	2.14
Common stock price [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.77	1.81
Common stock price [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.77	1.81
Common stock price [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.77
Common stock price [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	1.77
Risk-free rate [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	3.7	4.43
Risk-free rate [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	3.7	4.43
Risk-free rate [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	3.7
Risk-free rate [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	3.7
Volatility [Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	73.9	62
Volatility [Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	77.8	66.6
Volatility [Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	75.1
Volatility [Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	77.8
Dividend yield []Member] \| July 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	0	0
Dividend yield []Member] \| September 2024 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	0	0
Dividend yield []Member] \| July 2025 Note [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	0
Dividend yield []Member] \| September 2025 Notes [Member]
Schedule of Derivative Liability Valuation Inputs [Line Items]
Derivative liability, measurement inputs	0

Stock-Based Compensation (Tables)

9 Months Ended

Sep. 28, 2025

Stock-Based Compensation [Abstract]

Schedule of Stock Option Activity

The information below summarizes the stock option activity under the Plans.

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Contractual Term (Years)		Aggregate Intrinsic Value (in thousands)
Outstanding—December 29, 2024		9,997,233		$	2.77		5.29	$	6,356
Options granted		—
Options exercised		(712,467	)		0.73				88
Options canceled		(4,874,689	)		2.53
Outstanding—September 28, 2025		4,410,078			3.04				2,157
Vested and expected to vest— September 28, 2025		4,410,078			3.04				2,157
Vested and exercisable— September 28, 2025		2,364,439			6.98				722

Schedule of RSU Activity

The information below summarizes the RSU activity.

	Number of RSUs			Weighted Average Grant Date Fair Value
	(As Restated)
Unvested at December 29, 2024		1,982,135		$	1.79
Granted		22,235,871			1.73
Vested and released		(3,864,608	)		1.75
Cancelled or forfeited		(3,213,876	)		1.76
Unvested at September 28, 2025		17,139,522			1.73

Schedule of Stock-Based Compensation Expense

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
	(As Restated)				(As Restated)
Cost of revenues	$	714	$	49	$	2,232	$	105
Sales and marketing		570		196		2,057		490
General and administrative		839		1,271		3,587		3,491
Total stock-based compensation expense	$	2,123	$	1,516	$	7,876	$	4,086

Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

Sep. 28, 2025

Accrued Expenses and Other Current Liabilities [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

	As of
	September 28,		December 29,
	2025		2024
	(As Restated)
Accrued compensation and benefits	$	5,983	$	6,619
Professional fees		3,819		8,028
Accrued legal settlements		9,153		7,700
Accrued rebates and credits		5,769		7,641
Accrued interest ⁽¹⁾		4,471		4,523
Deferred consideration – related party		5,700		—
Investor financing deposit – related party ⁽²⁾		2,000		—
Other accrued liabilities ⁽³⁾		20,355		21,570
Total accrued expenses and other current liabilities	$	57,250	$	56,081

⁽¹⁾	Includes related party accrued interest of $1.3 million and $2.2 million as of September 28, 2025 and December 29, 2024, respectively.

⁽²⁾	The Company received $2.0 million from the Rodgers Massey Revocable Living Trust (“Rodgers Revocable Trust”) in the period ended September 28, 2025.

⁽³⁾	No individual items exceed 5% of total current liabilities.

Borrowings and Derivative Liabilities - Schedule of Fair Value of the Derivative Liability (Details) - USD ($) $ in Thousands	Sep. 28, 2025	Dec. 29, 2024
July 2024 Notes [Member] \| 12.0% senior unsecured convertible notes [Member]
Schedule of Fair Value of the Derivative Liability [Line Item]
Derivative liability	$ 67,719	$ 70,348
Less Unamortized debt discount	(26,657)	(27,751)
Total carrying amount	41,062	42,597
July 2025 Note – related party [Member] \| 12.0% senior unsecured convertible notes [Member]
Schedule of Fair Value of the Derivative Liability [Line Item]
Derivative liability	5,000
Less Unamortized debt discount	(3,627)
Total carrying amount	1,373
September 2024 Notes [Member] \| 7.0% senior unsecured convertible notes [Member]
Schedule of Fair Value of the Derivative Liability [Line Item]
Derivative liability	80,000	79,800
Less Unamortized debt discount	(63,033)	(73,688)
Total carrying amount	16,967	6,112
September 2025 Notes [Member] \| 7.0% senior unsecured convertible notes [Member]
Schedule of Fair Value of the Derivative Liability [Line Item]
Derivative liability	22,000
Less Unamortized debt discount	(18,932)
Total carrying amount	$ 3,068

Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Details) - Share-Based Payment Arrangement, Option [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 2,123	$ 1,516	$ 7,876	$ 4,086
Cost of Revenues [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense from continuing operations	714	49	2,232	105
Sales and Marketing [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense from continuing operations	570	196	2,057	490
General and Administrative [Member]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense from continuing operations	$ 839	$ 1,271	$ 3,587	$ 3,491

Business Combinations

9 Months Ended

Sep. 28, 2025

Business Combinations [Abstract]

Business Combinations

(4) Business Combinations

SunPower Acquisition

On September 30, 2024, commencing the Company’s fourth quarter of fiscal 2024, the Company completed the acquisition of certain assets and assumption of certain liabilities from SunPower Debtors for an aggregate cash consideration paid of $54.5 million, net of $1.0 million of cash acquired. Prior to its declaration of bankruptcy SunPower Debtors was a solar technology and energy services provider that offered fully integrated solar, storage, and home energy solutions to customers in the United States through an array of hardware, software, and “Smart Energy” solutions. The financial results of the SunPower Acquisition have been included in the Company’s unaudited condensed consolidated financial statements since the date of the SunPower Acquisition. This transaction was accounted for as a business combination in accordance with ASC 805, Business Combinations.

Transaction costs incurred in connection with the close of the SunPower Acquisition totaled $7.2 million and were expensed by the Company and included in general and administrative expenses within the fourth quarter of the Company’s fiscal year ended December 29, 2024.

The fair values of assets acquired and liabilities assumed were based upon a preliminary valuation. Consistent with previous disclosures, the Company disclosed that further adjustments to the Company’s inventory were expected in the thirty-nine week period ended September 28, 2025. As of September 28, 2025, the Company finalized the fair value of the assets acquired and liabilities assumed. The inventory acquired related to 1) work-in-progress at various stages of completion as of the acquisition date for which further analysis was required in order to determine which systems could be sold to a financing partner (for which the remaining units determined to be sellable to that partner were resolved during the thirteen-weeks ended September 28, 2025) and 2) completed systems that were acquired as of the acquisition date for which uncertainty existed due to unsettled matters with the SunPower Bankruptcy Estate (which were resolved in connection with the Company’s settlement with the SunPower Bankruptcy Estate). The final determination of the fair values of the inventory and intangibles upon settlement of these matters resulted in a revision to the inventory and intangibles with the offsetting adjustment to goodwill during the measurement period. The Company concluded that the finalization of the measurement period adjustment resulted in the recognition of $2.2 million of costs of goods in the thirteen week period ended September 28, 2025 that would have been recognized in the thirteen week period ended June 29, 2025 (which the Company concluded was not material to the financial statements for the thirteen- and thirty-nine week periods ended September 28, 2025).

The following table summarizes the provisional and final fair values of identifiable assets acquired and liabilities assumed and measurement period adjustments (in thousands):

	Provisional fair values			Measurement period adjustment			Final fair values as of September 28, 2025
Net assets acquired:
Cash	$	1,000		$	—		$	1,000
Accounts receivable		16,614			—			16,614
Inventories		27,706			20,682			48,388
Prepaid expenses and other current assets		2,219			—			2,219
Property and equipment		5,867			—			5,867
Operating lease right-of-use assets		2,506			—			2,506
Other noncurrent assets		541			—			541
Intangibles		18,100			(2,206	)		15,894
Deferred revenue		(7,361	)		—			(7,361	)
Accounts payable		(5,270	)		—			(5,270	)
Accrued expenses and other current liabilities		(13,955	)		—			(13,955	)
Operating lease liabilities		(2,963	)		—			(2,963	)
Other long-term liabilities		(8,980	)		—			(8,980	)
Fair value of net tangible assets acquired		36,024			18,476			54,500
Goodwill recognized		18,476			(18,476	)		—
Consideration transferred	$	54,500		$	—		$	54,500

Sunder Energy LLC Acquisition

On September 24, 2025 (“Closing”), the Company completed the acquisition of all assets and assumption of all liabilities of the Membership Interests of Sunder for aggregate consideration of $57.8 million. Sunder is a solar sales company. The Company acquired Sunder as a strategic acquisition to expand its overall market share and its penetration into more U.S. states. Per the terms of the MIPA, the Company acquired all of the outstanding membership interest of Sunder for (1) $20.7 million in cash, subject to certain working capital and other adjustments; (2) a promissory note to the Member in the principal amount of $20.0 million (“Seller Note”); (3) and 10.0 million shares of the Company’s common stock (valued at the closing share price on September 24, 2025, of $1.71 per share), consisting of (i) 3,333,334 shares of the Company’s common stock and (ii) subject to approval of such issuances by the Company’s stockholders, (x) an additional 3,333,333 shares of the Company’s common stock to be issued on the 12-month anniversary of the Closing and (y) a further 3,333,333 shares of the Company’s common stock to be issued on the 18-month anniversary of the Closing (“Deferred Consideration Shares”). In lieu of issuing the Deferred Consideration Shares, the Company, in its sole discretion, may elect to pay the Member a cash payment equal to the number of Deferred Consideration Shares otherwise issuable by the Company multiplied by the volume-weighted average price of the Company’s common stock as quoted on Nasdaq for the 30-trading day period ending two business days prior to the date on which the applicable Deferred Consideration Shares were otherwise issuable (“Cash in Lieu Amount”). If the Company elects to pay the Cash in Lieu Amount, 50% of the Cash in Lieu Amount will be paid on the three-month anniversary of the date on which the applicable Deferred Consideration Shares were otherwise issuable, with the remaining 50% of the Cash in Lieu Amount payable on the 6 month anniversary of the date on which the applicable Deferred Consideration Shares were otherwise issuable. The shares of the Company’s common stock were valued at $17.1 million at the date of acquisition. The deferred consideration paid and payable in connection with the Sunder acquisition was accounted for on the Company’s balance sheet as of September 28, 2025, as (i) $5.7 million within Additional paid-in capital, (ii) $5.7 million within Accrued expenses and other current liabilities, and (iii) $5.7 million within Other long-term liabilities.

The total consideration is summarized as follows (in thousands):

Consideration
Cash	$	20,689
Seller note		20,000
Equity 3.3 million shares of the Company’s common stock		5,700
Contingent consideration arrangement – up to 6.6 million shares of the Company’s common stock		11,400
Fair value of total consideration transferred	$	57,789

The fair values of assets acquired and liabilities assumed were based upon a preliminary valuation, and the Company’s estimates and assumptions are subject to change within the measurement period. Due to the timing of the acquisition at the end of the September 28, 2025 quarterly period, the purchase price accounting remains open for the components of working capital, identification and valuation of intangibles and allocation of goodwill to reportable segments. The Company has elected the practical expedient within ASC 805-20-30-27 through 805-20-30-30 to recognize and measure contract liabilities in accordance with ASC 606 – Revenue from Contracts with Customers as if it had originated the acquired contract. Thus, the amount of any contract liabilities immediately prior to the acquisition will be the comparable amounts recognized in the determination of assets acquired and liabilities assumed by the Company.

The following table summarizes the provisional fair value of identifiable assets acquired and liabilities assumed (in thousands):

Net assets acquired (As Restated):
Accounts receivable	$	257
Prepaid expenses and other current assets		387
Property and equipment		241
Operating lease right-of-use assets		313
Other noncurrent assets		552
Intangibles		25,922
Contract liabilities		(10,437	)
Accounts payable		(184	)
Accrued expenses and other current liabilities		(1,322	)
Operating lease liabilities		(215	)
Fair value of net tangible assets acquired		15,514
Goodwill recognized		42,275
Consideration transferred	$	57,789

As of the date of acquisition the intangible assets acquired and estimated useful lives were as follows:

	Estimated useful life	Amount
Customer related intangible	1 year	$	9,279
Trademark - Sunder	5 years		2,427
Developed technology - Sunder	5 years		14,216
Balance at end of period		$	25,922

Goodwill represents the excess of the preliminary estimated consideration transferred over the fair value of the net tangible and intangible assets acquired that is associated with the excess cash flows that the acquisition is expected to generate in the future. The goodwill is tax deductible.

The Sunder acquisition contributed $4.3 million in revenue and $0.3 million of income before income taxes for the period from the acquisition date to September 28, 2025.

Unaudited pro forma financial information

The following presents the unaudited pro forma consolidated financial information of the Company for the periods presented, as if the SunPower Acquisition and Sunder had been acquired as of January 1, 2024.

The unaudited pro forma combined financial information does not give effect to any cost savings, operating synergies or revenue synergies that may result from the acquisition of SunPower Acquisition or Sunder. The pro forma results do not necessarily reflect the actual results of operations of the combined business (in thousands).

	Thirty-Nine Weeks Ended
	September 28,			September 29,
	2025			2024
Pro forma revenue	$	276,353		$	319,639
Pro forma net loss from continuing operations		(45,402	)		(364,510	)

- Definition

The entire disclosure for business combination.

+ References

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-URI https://asc.fasb.org/1943274/2147479328/805-10-50-7

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-5

Reference 31: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 10
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/805-10/tableOfContent

+ Details

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Cash flows from operating activities from continuing operations

Net loss

$ (36,215)

$ (103,440)

Net loss from discontinued operations, net of income taxes

(1,100)

(2,007)

Net loss from continuing operations

(35,115)

(101,433)

Adjustments to reconcile net loss to net cash used in operating activities:

Stock-based compensation expense

7,876

4,086

Non-cash interest expense

1,938

Non-cash lease expense

826

483

Depreciation and amortization

4,293

991

Provision for credit losses

4,159

3,065

Change in reserve for excess and obsolete inventory

131

Change in fair value of SAFE Agreement – related party

113

900

Change in fair value of forward purchase agreement liabilities

^[1]

807

(4,906)

Change in fair value of derivative liabilities

^[2]

(1,639)

37,875

Change in fair value of warrant liabilities

3,122

2,116

Amortization of debt issuance costs

^[3]

11,828

1,361

Non-cash income

^[4]

(474)

Loss on impairments and disposals

140

3,721

Accretion of debt in CS Solis – related party

3,872

Loss on conversion of SAFE Agreements to shares of common stock

1,250

Non-cash expense in connection with warrant issued for vendor services

5,410

Loss on issuance of derivative liability

^[5]

24,688

Gain on debt extinguishment

(19,948)

Other financing costs

3,812

Changes in operating assets and liabilities, net of business acquisitions:

Accounts receivable

(25,041)

14,735

Inventories

34,222

2,378

Prepaid expenses and other current assets

(11,372)

(3,185)

Other noncurrent assets

Accounts payable

11,692

(8,496)

Accrued expenses and other liabilities

(11,531)

(1,646)

Operating lease liabilities

(866)

(875)

Contract liabilities

(6,384)

(1,434)

Net cash used in operating activities

(13,249)

(29,111)

Cash flows from investing activities from continuing operations

Cash paid for acquisition, net of cash acquired

(20,689)

Capitalization of internal-use software costs

(1,044)

Net cash used in investing activities from continuing operations

(20,689)

(1,044)

Cash flows from financing activities from continuing operations

Proceeds from issuance of convertible notes, net of debt discount

20,000

68,725

Proceeds from issuance of convertible notes due to related parties

5,000

26,000

Payment of debt issuance costs

(200)

Finance lease payments

(1,528)

Principal repayment of notes payable

(2,157)

(300)

Proceeds from issuance of common stock

1,682

6,143

Proceeds from exercise of common stock options

775

492

Proceeds from exercise of warrant for common stock

Investor financing deposit

2,000

Proceeds from issuance of SAFE Agreements

6,000

Net cash provided by financing activities from continuing operations

25,632

107,060

Effect of exchange rate changes

Net (decrease) increase in cash, cash equivalents and restricted cash

(8,306)

76,927

Cash, cash equivalents, and restricted cash at beginning of period

17,219

6,416

Cash, cash equivalents, and restricted cash at end of period

8,913

83,343

Supplemental disclosures of cash flow information:

Cash paid during the period for interest

7,654

Cash paid for income taxes

Supplemental disclosure of noncash financing and investing activities:

Issuance of Seller Note as partial purchase consideration in Sunder acquisition

^[6]

20,000

Issuance of common stock as partial consideration for acquisition of Sunder

^[7]

5,700

Deferred consideration recognized for acquisition of Sunder

^[7]

11,400

Debt issuance costs incurred in connection with the issuance of September 2025 Notes

1,150

Cancellation of existing indebtedness in Exchange Agreement

65,872

Issuance of convertible notes in Exchange Agreement

31,452

Issuance of common stock in Exchange Agreement

2,220

Conversion of SAFE Agreements to shares of common stock with related party

5,000

Carlyle warrant modification

660

Operating lease right-of-use assets obtained in exchange for lease obligations

116

Issuance of common stock warrants

1,400

Measurement period adjustments related to the SunPower acquisition – (Refer to Note 4 – Business Combinations for detail.)

[1]	Includes related party income of $0.1 million and $1.8 million in the thirty-nine week periods ended September 28, 2025, and September 29, 2024, respectively.
[2]	Includes related party remeasurement of gain of $1.8 million and loss of $22.8 million in the thirty-nine week periods ended September 28, 2025 and September 29, 2024, respectively.
[3]	Includes related party amortization expense of $2.0 million and $0.6 million in the thirty-nine week periods ended September 28, 2025 and September 29, 2024, respectively.
[4]	Includes related party non-cash income of $0.1 million in the thirty-nine week period ended September 28, 2025.
[5]	Includes $3.0 million of related party expense in each of the thirteen and thirty-nine week periods ended September 29, 2024.
[6]	Issuance of Seller Note was deemed to be with a related party. Refer to Note 10 – Borrowings and Derivative Liabilities for details.
[7]	The deferred consideration paid and payable in connection with the Sunder acquisition was accounted for on the Company’s condensed consolidated balance sheet as of September 28, 2025, as (i) $5.7 million within Additional paid-in capital, (ii) $5.7 million within Accrued expenses and other current liabilities, and (iii) $5.7 million within Other long-term liabilities.

Unaudited Condensed Consolidated Statements of Stockholders’ Deficit - USD ($) $ in Thousands	Common Stock	Additional Paid-in- Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Total
Balance at Dec. 31, 2023	$ 7	$ 277,965	$ (354,928)	$ 143	$ (76,813)
Balance (in Shares) at Dec. 31, 2023	49,065,361
Exercise of common stock options		492			492
Exercise of common stock options (in Shares)	373,003
Stock-based compensation		4,086			4,086
Issuance of common stock warrants		1,400			1,400
Issuance of common stock warrant for services		9,179			9,179
Issuance of common stock upon conversion of SAFE Agreements with related party	$ 6	6,244			6,250
Issuance of common stock upon conversion of SAFE Agreements with related party (in Shares)	13,888,889
Exercise of common stock warrants	$ 1				1
Exercise of common stock warrants (in Shares)	5,343,616
Issuance of common stock for exchange of debt		2,670			2,670
Issuance of common stock for exchange of debt (in Shares)	1,500,000
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	88,215
Issuance of common stock		6,143			6,143
Issuance of common stock (in Shares)	2,718,837
Modification of warrant agreement		7,306			7,306
Net loss			(103,440)		(103,440)
Foreign currency translation adjustment				22	22
Balance at Sep. 29, 2024	$ 14	315,485	(458,368)	165	(142,704)
Balance (in Shares) at Sep. 29, 2024	72,977,921
Balance at Jun. 30, 2024	$ 13	288,259	(380,410)	165	(91,973)
Balance (in Shares) at Jun. 30, 2024	63,044,287
Exercise of common stock options		432			432
Exercise of common stock options (in Shares)	282,966
Stock-based compensation		1,516			1,516
Issuance of common stock warrants		1,400			1,400
Issuance of common stock warrant for services		7,759			7,759
Exercise of common stock warrants	$ 1				1
Exercise of common stock warrants (in Shares)	5,343,616
Issuance of common stock for exchange of debt		2,670			2,670
Issuance of common stock for exchange of debt (in Shares)	1,500,000
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	88,215
Issuance of common stock		6,143			6,143
Issuance of common stock (in Shares)	2,718,837
Modification of warrant agreement		7,306			7,306
Net loss			(77,958)		(77,958)
Balance at Sep. 29, 2024	$ 14	315,485	(458,368)	165	(142,704)
Balance (in Shares) at Sep. 29, 2024	72,977,921
Balance at Dec. 29, 2024	$ 14	313,661	(411,379)	165	$ (97,539)
Balance (in Shares) at Dec. 29, 2024	73,784,645				73,784,645
Exercise of common stock options		775			$ 775
Exercise of common stock options (in Shares)	731,671
Stock-based compensation		7,876			7,876
Exercise of common stock warrants		60			60
Exercise of common stock warrants (in Shares)	6,000,000
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	3,864,608
Issuance of common stock		7,382			7,382
Issuance of common stock (in Shares)	4,333,334
Net loss			(36,215)		(36,215)
Balance at Sep. 28, 2025	$ 14	329,754	(447,594)	165	$ (117,661)
Balance (in Shares) at Sep. 28, 2025	88,714,258				88,714,258
Balance at Jun. 29, 2025	$ 14	320,033	(433,904)	165	$ (113,692)
Balance (in Shares) at Jun. 29, 2025	82,189,469
Exercise of common stock options		216			216
Exercise of common stock options (in Shares)	198,096
Stock-based compensation		2,123			2,123
Vesting of restricted stock units
Vesting of restricted stock units (in Shares)	1,993,359
Issuance of common stock		7,382			7,382
Issuance of common stock (in Shares)	4,333,334
Net loss			(13,690)		(13,690)
Balance at Sep. 28, 2025	$ 14	$ 329,754	$ (447,594)	$ 165	$ (117,661)
Balance (in Shares) at Sep. 28, 2025	88,714,258				88,714,258

Capital Stock - Schedule of Common Stock for Outstanding Warrants (Details) - $ / shares

9 Months Ended

Sep. 28, 2025

Sep. 29, 2024

Public Warrants [Member]

Liability classified warrants

Potential shares of common stock

6,266,667

Exercise price per share (in Dollars per share)

$ 11.5

Expiration date

^[1]

July 18, 2028 (1)

Private Placement Warrants [Member]

Liability classified warrants

Potential shares of common stock

8,625,000

Exercise price per share (in Dollars per share)

$ 11.5

Expiration date

^[1]

July 18, 2028 (1)

Working Capital Warrants [Member]

Liability classified warrants

Potential shares of common stock

716,668

Exercise price per share (in Dollars per share)

$ 11.5

Expiration date

^[1]

July 18, 2028 (1)

Liability Classified Warrants [Member]

Liability classified warrants

Potential shares of common stock

15,608,335

Series B Warrants [Member]

Liability classified warrants

Potential shares of common stock

5,054

Exercise price per share (in Dollars per share)

$ 4.3

Expiration date

February 2026

Series C Warrants [Member]

Liability classified warrants

Potential shares of common stock

482,969

Exercise price per share (in Dollars per share)

$ 1

Expiration date

July 2026

Series C-1 Warrants [Member]

Liability classified warrants

Potential shares of common stock

173,067

Exercise price per share (in Dollars per share)

$ 0.01

Expiration date

January 2030

SVB Common Stock Warrants [Member]

Liability classified warrants

Potential shares of common stock

2,473

Exercise price per share (in Dollars per share)

$ 0.38

Expiration date

2033

SVB Common Stock Warrants [Member]

Liability classified warrants

Potential shares of common stock

2,525

Exercise price per share (in Dollars per share)

$ 0.62

Expiration date

2033

Promissory Note Common Stock Warrants [Member]

Liability classified warrants

Potential shares of common stock

24,148

Exercise price per share (in Dollars per share)

$ 0.01

Expiration date

October 2031

July 2023 Common Stock Warrants [Member]

Liability classified warrants

Potential shares of common stock

38,981

Exercise price per share (in Dollars per share)

$ 0.01

Expiration date

July 2028

Common Stock Warrants Issued in 2023 [Member]

Liability classified warrants

Potential shares of common stock

6,266,572

Exercise price per share (in Dollars per share)

$ 11.5

Expiration date

July 18, 2033

Ayna Warrant [Member]

Liability classified warrants

Potential shares of common stock

6,000,000

Exercise price per share (in Dollars per share)

$ 0.01

Expiration date

June 2029

Cantor Warrant [Member]

Liability classified warrants

Potential shares of common stock

3,066,141

Exercise price per share (in Dollars per share)

$ 1.68

Expiration date

June 2029

Equity classified warrants [Member]

Liability classified warrants

Potential shares of common stock

10,061,930

16,061,930

Total potential shares of common stock [Member]

Liability classified warrants

Potential shares of common stock

25,670,265

31,670,265

[1]	The warrants expire five years after the Closing date of the Mergers, which date was July 18, 2023, or earlier upon redemption or liquidation.

Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Sep. 28, 2025	Dec. 29, 2024
Restatement of Previously Issued Unaudited Condensed Consolidated Financial Statements [Abstract]
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in Shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in Shares)	88,714,258	73,784,645
Common stock, shares outstanding (in Shares)	88,714,258	73,784,645

Accounting Policies, by Policy (Policies)

9 Months Ended

Sep. 28, 2025

Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Basis of presentation

(a) Basis of presentation

Cash and cash equivalents and restricted cash

(b) Cash and cash equivalents and restricted cash

	As of
	September 28, 2025		December 29, 2024
Cash and cash equivalents	$	5,072	$	13,378
Restricted cash		3,841		3,841
Total cash, cash equivalents and restricted cash	$	8,913	$	17,219

Estimated credit losses

(c) Estimated credit losses

The following table summarizes the allowance for credit loss activity as of and for the periods ended (in thousands):

	Thirty-Nine Weeks Ended
	September 28,			September 29,
	2025			2024
Balance at beginning of year	$	(1,701	)	$	(9,846	)
Provision charged to earnings		(4,159	)		(4,204	)
Amounts written off, net of recoveries and other adjustments		1,048			1,041
Balance at end of period	$	(4,812	)	$	(13,009	)

Contract liabilities

(d) Contract liabilities

	As of
	September 28,			December 29,
	2025			2024
		(As Restated)
Contract liabilities current and noncurrent		(14,974	)		(10,921	)

Revenue recognition

(e) Revenue recognition

Step 1. Identification of the contract(s) with a customer;

Step 2. Identification of the performance obligations in the contracts(s);

Step 3. Determination of the transaction price;

Step 4. Allocation of the transaction price to the performance obligations;

Step 5. Recognition of the revenue when, or as, the Company satisfies a performance obligation.

Residential Solar Installation revenues

●

New Homes Business revenues

The Company’s New Homes Business segment sells through a network of home builders as well as its internal sales team. The Company’s contracts with customers include two primary contract types:

●

Dealer (previously identified as “Sunder” in the Original Report)

Costs to obtain and fulfill contracts

Disaggregation of revenue

Refer to the table below for the Company’s revenue recognized (in thousands):

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
	September 28, 2025		September 29, 2024		September 28, 2025		September 29, 2024
	(As Restated)				(As Restated)
Residential Solar Installation
Revenue recognized over time	$	35,179	$	5,536	$	110,199	$	20,068
Total Residential Solar Installation		35,179		5,536		110,199		20,068

New Homes Business
Revenue recognized over time		9,415		—		34,943		—
Revenue recognized at a point in time		19,087		—		63,067		—
Total New Homes Business		28,502		—		98,010		—

Dealer
Revenue recognized at a point in time		806		—		806		—
Total Dealer		806		—		806		—
Total revenue	$	64,487	$	5,536	$	209,015	$	20,068

Total revenue recognized over time	$	44,594	$	5,536	$	145,142	$	20,068
Total revenue recognized at a point in time		19,893		—		63,873		—

All revenue was generated in the United States.

Remaining performance obligations

The Company elected the practical expedient not to disclose the remaining performance obligations for contracts that are less than one year in length.

Incremental costs of obtaining customer contracts

Prepaid expenses and other current assets

(f) Prepaid expenses and other current assets

The following table summarizes the components of prepaid expenses and other current assets:

	As of
	September 28,		December 29,
	2025		2024
		(As Restated)
Deferred costs	$	19,647	$	3,759
Other		93		4,447
Total prepaid expenses and other current assets	$	19,740	$	8,206

Recent accounting pronouncements

(g) Recent accounting pronouncements

Accounting pronouncements adopted

Accounting pronouncements not yet adopted

Changes in related parties

(h) Changes in related parties

- Definition

Disclosure of accounting policy for revenue from contract with customer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 19
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-URI https://asc.fasb.org/1943274/2147479806/606-10-50-19

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Paragraph 18
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-18

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 50
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Pay vs Performance Disclosure
Net Income (Loss)	$ (13,690)	$ (77,958)	$ (36,215)	$ (103,440)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 946
-SubTopic 830
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479168/946-830-55-10

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
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-Name Accounting Standards Codification
-Section 55
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-URI https://asc.fasb.org/1943274/2147476153/220-40-55-4

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
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-URI https://asc.fasb.org/1943274/2147476153/220-40-55-21

Reference 4: http://www.xbrl.org/2003/role/exampleRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

SAFE Agreements

9 Months Ended

Sep. 28, 2025

SAFE Agreements [Abstract]

SAFE Agreements

(11) SAFE Agreements

First SAFE

On January 31, 2024, the Company entered into a Simple Agreement for Future Equity (“SAFE”) (the “First SAFE”) with the Rodgers Massey Freedom and Free Markets Charitable Trust (the “Purchaser”), a related party, affiliated with Thurman J. Rodgers, the Company’s Chief Executive Officer and a director, in connection with the Purchaser investing $1.5 million in the Company. The First SAFE did not accrue interest. The First SAFE was initially convertible into shares of the Company’s common stock, par value $0.0001 per share, upon the closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company would have issued and sold shares of its common stock at a fixed valuation (an “Equity Financing”), at a per share conversion price which was equal to the lower of (i) (a) $53.54 million divided by (b) the Company’s capitalization immediately prior to such Equity Financing (such conversion price, the “SAFE Price”), and (ii) 80% of the price per share of its common stock sold in the Equity Financing. If the Company consummated a change of control prior to the termination of the First SAFE, the Purchaser would have been automatically entitled to receive a portion of the proceeds of such liquidity event equal to the greater of (i) $1.5 million and (ii) the amount payable on the number of shares of common stock equal to (a) $1.5 million divided by (b)(1) $53.54 million divided by (2) the Company’s capitalization immediately prior to such liquidity event (the “Liquidity Price”), subject to certain adjustments as set forth in the First SAFE. The First SAFE was convertible into a maximum of 1,431,297 shares of the Company’s common stock, assuming a per share conversion price of $1.05, which is the product of (i) $1.31, the closing price per share of the Company’s common stock on January 31, 2024, multiplied by (ii) 80%.

On April 21, 2024, the Company entered into an amendment (“First SAFE Amendment”) that converted the First SAFE investment of $1.5 million into 4,166,667 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the First SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to the First SAFE Agreement of $1.5 million, a credit to Additional paid-in-capital of $1.9 million and recognized expense of $0.4 million within Other expense, net in its unaudited condensed consolidated statement of operations in the Company’s second fiscal quarter ended June 30, 2024.

Second SAFE

On February 15, 2024, the Company entered into a second SAFE (the “Second SAFE”) with the Purchaser, in connection with the Purchaser investing $3.5 million in the Company. The Second SAFE did not accrue interest. The Second SAFE was initially convertible into shares of the Company’s common stock upon the initial closing of an Equity Financing transaction at a per share conversion price which was equal to the lower of (i) the Second SAFE Price, and (ii) 80% of the price per share of the Company’s common stock sold in an Equity Financing transaction. If the Company consummated a change of control prior to the termination of the Second SAFE, the Purchaser would have been automatically entitled to receive an amount equal to the greater of (i) $3.5 million and (ii) the amount payable on the number of shares of the Company’s common stock equal to $3.5 million divided by the Liquidity Price, subject to certain adjustments as set forth in the Second SAFE. The Second SAFE was convertible into a maximum of 3,707,627 shares of the Company’s common stock, assuming a per share conversion price of $0.94, which is the product of (i) $1.18, the closing per share price of its common stock on February 15, 2024, multiplied by (ii) 80%.

On April 21, 2024, the Company entered into an amendment (“Second SAFE Amendment”) that converted the Second SAFE investment of $3.5 million into 9,722,222 shares of the Company’s common stock based on a conversion price of $0.36 per share, defined in the Second SAFE Amendment as the product of (i) $0.45, the closing price of the Company’s common stock on April 19, 2024, multiplied by (ii) 80%. Upon conversion, the Company recorded a debit to the Second SAFE Agreement of $3.5 million, a credit to Additional paid-in-capital of $4.4 million and recognized expense of $0.9 million within Other expense, net in its unaudited condensed consolidated statement of operations in the Company’s second fiscal quarter ended June 30, 2024.

Third SAFE

On May 13, 2024, the Company entered into a third SAFE (the “Third SAFE”) with the Purchaser, in connection with the Purchaser investing $1.0 million in the Company. The Third SAFE is convertible into shares of the Company’s common stock upon the initial closing of a bona fide transaction or series of transactions with the principal purpose of raising capital, pursuant to which the Company issues and sells shares of its common stock in an Equity Financing transaction, at a per share conversion price which is equal to 50% of the price per share of the Company’s common stock sold in an Equity Financing. If the Company consummates a change of control prior to the termination of the Third SAFE, the Purchaser will be automatically entitled to receive a portion of the proceeds of such liquidity event equal to $1.0 million, subject to certain adjustments as set forth in the Third SAFE. The Third SAFE is convertible into a maximum of 2,750,000 shares of the Company’s common stock, assuming a per share conversion price of $0.275, which is the product of (i) $0.55, the closing price of the Company’s common stock on May 13, 2024, multiplied by (ii) 50%. Given that the Third SAFE may be settled in cash or a variable number of shares, the Company has accounted for the instrument as a liability at its fair value.

The estimated fair value of the Third SAFE was $0.5 million and $0.4 million as of September 28, 2025 and December 29, 2024, based upon the assumptions disclosed in Note 5 – Fair Value Measurements.

The change in the fair value of the Third SAFE is recorded within Other expense, net in the accompanying condensed consolidated statements of operations and comprehensive loss. The change in the fair value of the Third SAFE was expense of $0.1 million and $0.9 million in the thirteen week periods ended September 28, 2025 and September 29, 2024, respectively. The change in the fair value of the Third SAFE was expense of $0.1 million and $0.9 million in the thirty-nine week periods ended September 28, 2025 and September 29, 2024, respectively.

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 28, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Schedule of Related Parties Transactions - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Supplemental Income Statement Elements [Abstract]
Loss on issuance of derivative liabilities		$ (3.0)		$ (3.0)
(Loss) gain on remeasurement of derivative liabilities (Note 10 – Borrowings and Derivative Liabilities)	(0.3)	(22.8)	1.8	(22.8)
Gain (loss) due to change in fair value of Forward Purchase Agreements		2.8	0.1	1.8
Loss on conversion of SAFE Agreements to common stock				(1.3)
Change in fair value of SAFE Agreement	(0.1)	(0.9)	(0.1)	(0.9)
(Loss) gain due to change in fair value of Carlyle warrants				$ 2.9

Stock-Based Compensation (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Millions	Jul. 31, 2023	Sep. 28, 2025
Service Based Option [Member]
Stock-Based Compensation [Line Items]
Unrecognized stock-based compensation		$ 1.6
Weighted-average period		2 years 9 months 18 days
Restricted Stock Units (RSUs) [Member]
Stock-Based Compensation [Line Items]
Unrecognized stock-based compensation		$ 28.3
Weighted-average period		4 years 3 months 18 days
2023 Incentive Equity Plan [Member]
Stock-Based Compensation [Line Items]
Shares issued under plan	8,763,322
Percentage of common stock outstanding	4.00%
ISOs under the 2023 Plan [Member]
Stock-Based Compensation [Line Items]
Shares issued under plan	26,289,966

Basic and Diluted Net Loss Per Share (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 28, 2025	Sep. 28, 2025	Sep. 29, 2024
Basic and Diluted Net Loss Per Share [Line Items]
Dividends amount
Warrants [Member]
Basic and Diluted Net Loss Per Share [Line Items]
Weighted average shares outstanding (in Shares)		234,610

Other Intangible Assets (Tables)

9 Months Ended

Sep. 28, 2025

Other Intangible Assets [Abstract]

Schedule of Other Intangible Assets with Finite Useful Lives

The following table represents the Company’s other intangible assets with finite useful lives as of September 28, 2025, and December 29, 2024 (in thousands):

As of September 28, 2025	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Customer related intangible	$	9,279	$	—		$	9,279
Trademark – Blue Raven Solar ⁽¹⁾		7,094		(840	)		6,254
Trademark – SunPower ⁽¹⁾		4,300		(520	)		3,780
Trademark – Sunder		2,427		—			2,427
Developed technology ⁽¹⁾		4,500		(1,500	)		3,000
Developed technology – Sunder		14,216		—			14,216
Total	$	41,816	$	(2,860	)	$	38,956

As of December 29, 2024	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Trademark – Blue Raven Solar ⁽¹⁾	$	8,400	$	(210	)	$	8,190
Trademark – SunPower ⁽¹⁾		5,200		(130	)		5,070
Developed technology ⁽¹⁾		4,500		(375	)		4,125
Total	$	18,100	$	(715	)	$	17,385

(1)

Capital Stock - Schedule of Reserved Shares of Common Stock (Details) - shares	Sep. 28, 2025	Dec. 29, 2024
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	154,338,666	116,906,160
Common stock warrants [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	25,670,265	31,670,265
Employee Stock Purchase Plan [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	3,174,434	2,628,996
Stock options and RSUs, issued and outstanding [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	21,549,600	11,979,368
Stock options and RSUs, authorized for future issuance [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	9,986,173	2,577,895
SAFE Agreements [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	2,750,000	2,750,000
Forward purchase agreements [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	6,720,000	67,200,000
Convertible notes [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	77,821,528	58,579,636
Deferred consideration [Member]
Schedule of Reserved Shares of Common Stock [Line Items]
Total shares reserved	6,666,666

Business Combinations - Schedule of Total Consideration is Summarized (Parentheticals) (Details) - Sunder Energy LLC [Member]	9 Months Ended
	Sep. 28, 2025 shares
Schedule of Total Consideration is Summarized [Line Items]
Equity shares common stock (in Shares)	3.3
Contingent consideration arrangement shares (in Shares)	6.6

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Other Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Other Expense, Net (Details) - USD ($) $ in Millions	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Related Party [Member]
Other Expense, Net [Line Items]
Other expenses		$ 3.0		$ 3.0
Other income	$ 0.0	2.8	$ 0.1	1.8
Borrowings and Derivative Liabilities [Member]
Other Expense, Net [Line Items]
Other income		$ 22.8	$ 1.8	$ 22.8

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Basic and Diluted Net Loss Per Share - Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	102,770,547	104,420,286	97,286,320	104,420,286
Common stock warrants [Member]
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	193,740	31,670,265	197,578	31,670,265
Stock options and RSUs issued and outstanding [Member]
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	15,338,613	14,170,385	9,850,548	14,170,385
Convertible Notes [Member]
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	77,821,528	58,579,636	77,821,528	58,579,636
Third SAFE Agreement [Member]
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	2,750,000		2,750,000
Deferred consideration shares [Member]
Schedule of Potential Common Shares Outstanding that were Excluded from the Computation of Diluted Net Loss Per Share of Common Stock [Line Items]
Total potential common shares excluded from diluted net loss per share	6,666,666		6,666,666

Income Taxes

9 Months Ended

Sep. 28, 2025

Income Taxes [Abstract]

Income Taxes

(14) Income Taxes

As a result of the Company’s history of net operating losses, the Company has provided a full valuation allowance against its deferred tax assets. For each of the thirteen week periods ended September 28, 2025, and September 29, 2024, the Company recognized income tax expense of zero. For the thirty-nine week periods ended September 28, 2025, and September 29, 2024, the Company recognized income tax expense of zero and eleven thousand dollars, respectively.

The One Big Beautiful Bill Act (“OBBBA”) was enacted on July 4, 2025. The OBBBA contains significant changes to corporate taxation, including accelerated deductions for capital expenditures, expensing of research and development costs incurred in the US, and increased deductibility of interest expense. The Company is currently evaluating the impact of OBBBA, but does not expect a material provision would impact the effective tax rate.

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details