T1 Energy Inc. (TE) insider adds 17.9M shares via note conversion

Rhea-AI Filing Summary

T1 Energy Inc. reported that major shareholder and director Trina Solar (Schweiz) AG converted part of a 7% unsecured convertible note due 2030 into common stock. On 12/10/2025, the reporting person acquired 17,918,460 common shares in a transaction coded "C" (conversion), bringing its beneficial ownership to 45,877,960 common shares held directly.

According to the footnote, the note was originally issued in connection with an acquisition and allowed two conversion tranches, both subject to approvals. The Committee on Foreign Investment in the United States determined on 5/27/2025 that the transaction was not a covered transaction, and the company’s stockholders approved the second conversion on 12/3/2025, after which this second conversion closed on 12/10/2025.

SEC Form 4

FORM 4

UNITED 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

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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)

WALLISELLEN V8 8304

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
T1 Energy Inc. [ TE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	12/10/2025		C		17,918,460	A	(1)	45,877,960	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
7% Unsecured Convertible Note Due in 2030	(1)	12/03/2025		J(1)		17,918,460		(1)	(1)	Common Stock	30,400,000	(1)	30,400,000	D
7% Unsecured Convertible Note Due in 2030	(1)	12/10/2025		C			17,918,460	(1)	(1)	Common Stock	17,918,460	(1)	0	D

Explanation of Responses:

1. 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.

	Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors	12/30/2025
	** Signature of Reporting Person	Date
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FAQ

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

The filing shows that Trina Solar (Schweiz) AG, a director and 10% owner of T1 Energy Inc., converted part of a 7% unsecured convertible note due 2030 into 17,918,460 shares of common stock on 12/10/2025.

How many T1 Energy Inc. (TE) shares does the reporting person own after the transaction?

Following the reported conversion, the reporting person beneficially owns 45,877,960 common shares of T1 Energy Inc., held in direct ownership.

What type of security was converted into T1 Energy Inc. (TE) common stock?

The transaction involved a 7% unsecured convertible note due in 2030. A portion of this note was converted into 17,918,460 shares of T1 Energy Inc. common stock in the transaction coded "C" on 12/10/2025.

What approvals were required before the note conversion into T1 Energy Inc. (TE) stock?

The note’s conversion was contingent on several approvals. The Committee on Foreign Investment in the United States issued a letter on 5/27/2025 stating the transaction was not a covered transaction. In addition, T1 Energy Inc.’s stockholders approved the second conversion tranche on 12/3/2025.

How was the 7% convertible note into T1 Energy Inc. (TE) shares structured?

As described, the 7% convertible note could be converted into two tranches of T1 Energy Inc. common stock: a First Conversion into 12,521,653 shares and a Second Conversion into 17,918,460 shares. The second tranche is the one reported here as occurring on 12/10/2025.

What earlier events led up to this T1 Energy Inc. (TE) note conversion?

The note was issued on 12/23/2024 in connection with an acquisition transaction. The First Conversion into 12,521,653 shares occurred on 9/5/2025, and after stockholder approval on 12/3/2025, the Second Conversion into 17,918,460 shares took place on 12/10/2025.