TRINA SOLAR (SCHWEIZ) AG

SEC source: 0000912282-26-000768 · form4.xml · nonDerivative · entry 5

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,652,664

SEC source: 0000912282-26-000768 · form4.xml · nonDerivative · entry 4

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,672,760

F4 · price: The sale price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.74 to $8.72, inclusive. The reporting person undertakes to provide to T1 Energy Inc., any security holder of T1 Energy Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000912282-26-000768 · form4.xml · nonDerivative · entry 3

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,152,664

F3 · price: The sale price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.61 to $8.96, inclusive. The reporting person undertakes to provide to T1 Energy Inc., any security holder of T1 Energy Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000912282-26-000768 · form4.xml · nonDerivative · entry 2

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,152,664

F2 · price: The sale price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.07 to $9.43, inclusive. The reporting person undertakes to provide to T1 Energy Inc., any security holder of T1 Energy Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000912282-26-000768 · form4.xml · nonDerivative · entry 1

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,303,640

F1 · price: The sale price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.07 to $9.06, inclusive. The reporting person undertakes to provide to T1 Energy Inc., any security holder of T1 Energy Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0000912282-26-000113 · form4.xml · nonDerivative · entry 1

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,152,664

F1 · shares: Pursuant to anti-dilution rights granted to the Reporting Person under the Transaction Agreement dated November 6, 2024, the Issuer issued 4,274,704 common shares to the Reporting Person on January 21, 2026.

SEC source: 0000912282-26-000764 · form4a.xml · nonDerivative · entry 1

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · Director · 10% owner · Director by Deputization

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,152,664

F1 · shares: Pursuant to anti-dilution rights granted to the Reporting Person under the Transaction Agreement dated November 6, 2024, the Issuer issued 4,274,704 common shares to the Reporting Person on January 21, 2026.

SEC source: 0000912282-26-000019 · form4.xml · nonDerivative · entry 1

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,877,960

F1 · kind: Pursuant to a Letter Agreement among the Issuer, Reporting Person, and other parties named therein dated December 29, 2025, the Issuer issued 3,000,000 common shares to the Reporting Person on December 30, 2025, in connection with a debt settlement. The issuance serves as partial consideration for (i) the full discharge of the Issuer's obligations under that certain $150.0 million 1% per annum senior unsecured note due 2029 and (ii) the partial satisfaction of a Production Reservation Fee owed by the Issuer and certain of its affiliates to an affiliate of the Reporting Person under the Transaction Agreement dated November 6, 2024.

F1 · price: Pursuant to a Letter Agreement among the Issuer, Reporting Person, and other parties named therein dated December 29, 2025, the Issuer issued 3,000,000 common shares to the Reporting Person on December 30, 2025, in connection with a debt settlement. The issuance serves as partial consideration for (i) the full discharge of the Issuer's obligations under that certain $150.0 million 1% per annum senior unsecured note due 2029 and (ii) the partial satisfaction of a Production Reservation Fee owed by the Issuer and certain of its affiliates to an affiliate of the Reporting Person under the Transaction Agreement dated November 6, 2024.

SEC source: 0000912282-25-001474 · form4.xml · derivative · entry 3

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,918,460 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · price: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · derivative.exercise_date: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · derivative.expiration_date: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

SEC source: 0000912282-25-001474 · form4.xml · nonDerivative · entry 1

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,877,960

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

SEC source: 0000912282-25-001474 · form4.xml · derivative · entry 2

TRINA SOLAR (SCHWEIZ) AG · CIK 0002047012 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,400,000

Underlying: Common Stock · 30,400,000 shares

Expires not disclosed

F1 · derivative.exercise_price: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · kind: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · price: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · derivative.exercise_date: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.

F1 · derivative.expiration_date: As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.