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TRINA SOLAR (SCHWEIZ) AG boosts T1 Energy (TE) stake with 4.27M-share grant

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4/A

Rhea-AI Filing Summary

T1 Energy Inc. reported that major shareholder and director-by-deputization TRINA SOLAR (SCHWEIZ) AG received an additional 4,274,704 common shares of T1 Energy on January 21, 2026. The shares were issued under anti-dilution rights in a Transaction Agreement dated November 6, 2024.

The award is recorded at $1.70 per share and classified as a grant or other acquisition, not an open-market purchase. Following this issuance, TRINA SOLAR (SCHWEIZ) AG holds 53,152,664 T1 Energy common shares directly.

Positive

  • None.

Negative

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Insider TRINA SOLAR (SCHWEIZ) AG
Role null
Type Security Shares Price Value
Grant/Award Common Shares 4,274,704 $1.70 $7.27M
Holdings After Transaction: Common Shares — 53,152,664 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Shares granted 4,274,704 shares Common shares issued on January 21, 2026
Grant price $1.70 per share Reporting value for the share grant
Total holdings after grant 53,152,664 shares TRINA SOLAR (SCHWEIZ) AG direct T1 Energy holdings post-transaction
Transaction code A Classified as grant, award, or other acquisition
Transaction date January 21, 2026 Date shares were issued under anti-dilution rights
Agreement date November 6, 2024 Date of Transaction Agreement granting anti-dilution rights
anti-dilution rights financial
"Pursuant to anti-dilution rights granted to the Reporting Person under the Transaction Agreement..."
Transaction Agreement financial
"under the Transaction Agreement dated November 6, 2024, the Issuer issued 4,274,704 common shares..."
Grant, award, or other acquisition financial
"transaction_code_description": "Grant, award, or other acquisition""
ten percent owner financial
""is_ten_percent_owner": 1"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
TRINA SOLAR (SCHWEIZ) AG

(Last)(First)(Middle)
BIRKENWEG 4

(Street)
WALLISELLEN8304

(City)(State)(Zip)

SWITZERLAND

(Country)
2. Issuer Name and Ticker or Trading Symbol
T1 Energy Inc. [ TE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)XOther (specify below)
Director by Deputization
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
01/21/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)
01/23/2026
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Shares01/21/2026A4,274,704(1)A$1.753,152,664D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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.
Remarks:
The Reporting Person is a director by deputization of the Issuer.
Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors05/26/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did T1 Energy Inc. (TE) disclose in this Form 4/A?

T1 Energy disclosed that TRINA SOLAR (SCHWEIZ) AG received 4,274,704 common shares as a grant on January 21, 2026. The issuance stems from contractual anti-dilution rights under a prior Transaction Agreement, rather than an open-market share purchase.

Who is TRINA SOLAR (SCHWEIZ) AG in relation to T1 Energy Inc. (TE)?

TRINA SOLAR (SCHWEIZ) AG is identified as a director by deputization and a more-than-10% owner of T1 Energy. Its status means it is both a significant shareholder and a board-level representative, making its equity position important for governance and control.

How many T1 Energy (TE) shares does TRINA SOLAR (SCHWEIZ) AG own after this transaction?

After receiving 4,274,704 additional common shares, TRINA SOLAR (SCHWEIZ) AG directly holds 53,152,664 T1 Energy shares. This total reflects its position immediately following the January 21, 2026 grant reported in the Form 4/A filing.

At what price was the new T1 Energy (TE) share grant to TRINA SOLAR (SCHWEIZ) AG recorded?

The 4,274,704 common shares issued to TRINA SOLAR (SCHWEIZ) AG were recorded at a price of $1.70 per share. This price is used for reporting purposes in the Form 4/A, reflecting the value of the grant acquisition.

Why did T1 Energy (TE) issue additional shares to TRINA SOLAR (SCHWEIZ) AG?

T1 Energy issued the additional 4,274,704 shares pursuant to anti-dilution rights granted in a Transaction Agreement dated November 6, 2024. These rights are designed to maintain the holder’s ownership level when other equity changes occur, triggering new share issuances.

Was the T1 Energy (TE) share transaction a market purchase or a grant?

The transaction is classified as a grant or other acquisition, not a market purchase. The Form 4/A lists transaction code A and describes it as a grant, award, or other acquisition tied to contractual anti-dilution rights, rather than open-market buying.