T1 Energy (TE) accounting officer reports 75,000 RSUs in Form 3 filing

Rhea-AI Filing Summary

T1 Energy Inc. officer Thomas Mahrer filed an initial ownership report showing beneficial ownership of 75,000 restricted stock units (RSUs) tied to the company’s common stock. The filing reflects his position as Chief Accounting Officer and Corporate Controller.

These RSUs were granted on November 4, 2025 under the T1 Energy 2021 Equity Incentive Plan and vest in three equal annual installments on November 4, 2026, 2027, and 2028. Each RSU represents a right to receive one share of common stock upon settlement, and the units are net settled in shares.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Mahrer Thomas

(Last) (First) (Middle)

1211 E 4TH ST.

(Street)

AUSTIN TX 78702

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
02/05/2026

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units (RSUs)	(1)	(1)	Common Stock	75,000	(2)	D

Explanation of Responses:

1. Consists of restricted stock units ("RSUs") granted on November 4, 2025 under the T1 Energy 2021 Equity Incentive Plan (amended and restated as of April 22, 2024). The RSUs vest in three equal annual installments, one-third (1/3) on November 4, 2026, one-third (1/3) on November 4, 2027 and one-third (1/3) on November 4, 2028. The RSUs are net settled in shares of Common Stock.

2. Each RSU represents a right to receive one share of Common Stock upon settlement.

Remarks:

Relationship of Reporting Person to Issuer - Chief Accounting Officer and Corporate Controller | Exhibit List Exhibit 24.1 - Power of Attorney

	/s/ Harold Callo Sanchez, as Attorney-in-Fact	02/13/2026
	** Signature of Reporting Person	Date
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 5 (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).
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FAQ

What does the Form 3 filing by T1 Energy (TE) disclose?

The filing discloses that officer Thomas Mahrer beneficially owns 75,000 restricted stock units (RSUs) in T1 Energy Inc. These RSUs relate to the company’s common stock and are reported as his initial statement of ownership as Chief Accounting Officer and Corporate Controller.

How many RSUs does T1 Energy officer Thomas Mahrer hold?

Thomas Mahrer holds 75,000 restricted stock units (RSUs) linked to T1 Energy’s common stock. This amount is reported as directly owned and reflects his equity-based compensation position under the company’s 2021 Equity Incentive Plan, as amended and restated in 2024.

When do Thomas Mahrer’s T1 Energy RSUs vest?

The RSUs vest in three equal annual installments on November 4, 2026, November 4, 2027, and November 4, 2028. This schedule spreads the vesting over three years, aligning the officer’s equity compensation with longer-term service and performance at T1 Energy.

What is the grant date of the RSUs reported for T1 Energy (TE)?

The 75,000 RSUs were granted on November 4, 2025 under the T1 Energy 2021 Equity Incentive Plan. The plan was amended and restated as of April 22, 2024, and these units are part of that equity compensation framework for company officers.

How are the T1 Energy RSUs settled for Thomas Mahrer?

The restricted stock units are net settled in shares of T1 Energy common stock upon vesting. Each RSU represents the right to receive one share when it settles, providing share-based compensation rather than cash to the reporting officer.

What position does the reporting person hold at T1 Energy (TE)?

The reporting person, Thomas Mahrer, serves as Chief Accounting Officer and Corporate Controller at T1 Energy Inc. His role is identified in the filing’s remarks section, alongside disclosure of his beneficial ownership of 75,000 restricted stock units.