XML 146 R128.htm IDEA: XBRL DOCUMENT
v3.26.1

Common Stock and Common Stock Warrants - Schedule of Liability Classified Warrants (Details) - $ / shares | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2026 | [1] | Dec. 28, 2025 | Dec. 29, 2024
Liability classified warrants |  |  |  |  |
Liability classified warrants, Potential shares of common stock |  | 15,608,335 | 15,608,335 | [1],[2] | 15,608,335
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 10,061,930 | 10,061,930 | [1],[2] | 16,061,930
Total potential shares of common stock |  | 25,670,265 | 25,670,265 | [1],[2] | 31,670,265
Public Warrants [Member] |  |  |  |  |
Liability classified warrants |  |  |  |  |
Liability classified warrants, Potential shares of common stock |  | 8,625,000 | 8,625,000 | [1],[2] | 8,625,000
Liability classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 11.5 |  |
Liability classified warrants, Expiration date | [3] |  | July 18, 2028 (2) |  |
Private Placement Warrants [Member] |  |  |  |  |
Liability classified warrants |  |  |  |  |
Liability classified warrants, Potential shares of common stock |  | 6,266,667 | 6,266,667 | [1],[2] | 6,266,667
Liability classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 11.5 |  |
Liability classified warrants, Expiration date | [3] |  | July 18, 2028 (2) |  |
Working Capital Warrants [Member] |  |  |  |  |
Liability classified warrants |  |  |  |  |
Liability classified warrants, Potential shares of common stock |  | 716,668 | 716,668 | [1],[2] | 716,668
Liability classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 11.5 |  |
Liability classified warrants, Expiration date | [3] |  | July 18, 2028 (2) |  |
Series B Warrants (converted to common stock warrants) [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 5,054 | 5,054 | [1],[2] | 5,054
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 4.3 |  |
Equity classified warrants, Expiration date |  |  | February 2026 |  |
Series C Warrants (converted to common stock warrants) [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 482,969 | 482,969 | [1],[2] | 482,969
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 1 |  |
Equity classified warrants, Expiration date |  |  | July 2026 |  |
Series C-1 Warrants (converted to common stock warrants) [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 173,067 | 173,067 | [1],[2] | 173,067
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.01 |  |
Equity classified warrants, Expiration date |  |  | January 2030 |  |
SVB Common Stock Warrants One [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 2,473 | 2,473 | [1],[2] | 2,473
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.38 |  |
Equity classified warrants, Expiration date |  |  | 2033 |  |
SVB Common Stock Warrants [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 2,525 | 2,525 | [1],[2] | 2,525
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.62 |  |
Equity classified warrants, Expiration date |  |  | 2033 |  |
Promissory Note Common Stock Warrants [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 24,148 | 24,148 | [1],[2] | 24,148
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.01 |  |
Equity classified warrants, Expiration date |  |  | October 2031 |  |
July 2023 Common Stock Warrants [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 38,981 | 38,981 | [1],[2] | 38,981
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.01 |  |
Equity classified warrants, Expiration date |  |  | July 2028 |  |
Common Stock Warrants Issued in 2023 (“Merger Warrants”) [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 6,266,572 | 6,266,572 | [1],[2] | 6,266,572
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 11.5 |  |
Equity classified warrants, Expiration date |  |  | July 18, 2033 |  |
Ayna Warrant [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  |  |  | [2] | 6,000,000
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 0.01 |  |
Equity classified warrants, Expiration date |  |  | June 2029 |  |
Cantor Warrant [Member] |  |  |  |  |
Equity classified warrants |  |  |  |  |
Equity classified warrants, Potential shares of common stock |  | 3,066,141 | 3,066,141 | [1],[2] | 3,066,141
Equity classified warrants, Exercise price per share (in Dollars per share) |  |  | $ 1.68 |  |
Equity classified warrants, Expiration date |  |  | June 2029 |  |
[1] | Excludes the 2025 Cantor Warrant which was not issued as of March 29, 2026.
[2] | Excludes the 2025 Cantor Warrant (as defined below) which was not issued as of December 28, 2025.
[3] | The warrants expire five years after the Closing date of the Mergers, which date was July 18, 2023, or earlier upon redemption or liquidation.

X
- References No definition available. + Details
Name: | spwr_EquityClassifiedWarrantsAbstract0
Namespace Prefix: | spwr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity classified warrants, Exercise price per share + References No definition available. + Details
Name: | spwr_EquityClassifiedWarrantsExercisePricePerShare
Namespace Prefix: | spwr_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity classified warrants, Expiration date + References No definition available. + Details
Name: | spwr_EquityClassifiedWarrantsExpirationDate
Namespace Prefix: | spwr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity classified warrants, Potential shares of common stock + References No definition available. + Details
Name: | spwr_EquityClassifiedWarrantsPotentialSharesOfCommonStock
Namespace Prefix: | spwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | spwr_LiabilityClassifiedWarrantsAbstract0
Namespace Prefix: | spwr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Liability classified warrants, Exercise price per share + References No definition available. + Details
Name: | spwr_LiabilityClassifiedWarrantsExercisePricePerShare
Namespace Prefix: | spwr_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Liability classified warrants, Expiration date + References No definition available. + Details
Name: | spwr_LiabilityClassifiedWarrantsExpirationDate
Namespace Prefix: | spwr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Liability classified warrants, Potential shares of common stock + References No definition available. + Details
Name: | spwr_LiabilityClassifiedWarrantsPotentialSharesOfCommonStock
Namespace Prefix: | spwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total potential shares of common stock + References No definition available. + Details
Name: | spwr_TotalPotentialSharesOfCommonStock
Namespace Prefix: | spwr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_PublicWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_PrivatePlacementWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_WorkingCapitalWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_SeriesBWarrantsconvertedToCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_SeriesCWarrantsconvertedToCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_SeriesC1WarrantsconvertedToCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_SVBCommonStockWarrantsOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_SVBCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_PromissoryNoteCommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_July2023CommonStockWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_CommonStockWarrantsIssuedIn2023MergerWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_AynaWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=spwr_CantorWarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |