SEC FORM 3/A

SEC FORM 3/ASEC 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

TEXAS

78702

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)
02/13/2026

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

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

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Restricted Stock Units (RSUs)	⁽¹⁾	⁽¹⁾	Common Stock	75,000	$0⁽³⁾	D
Restricted Stock Units (RSUs)	⁽²⁾	⁽²⁾	Common Stock	12,670	$0⁽³⁾	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 "Plan")). 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. Consists of RSUs granted on January 29, 2026 under the Plan. The RSUs vest in three equal annual installments, one-third (1/3) on January 29, 2027, one-third (1/3) on January 29, 2028 and one-third (1/3) on January 29, 2029. The RSUs are net settled in shares of Common Stock.

3. 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. This Amendment No. 1 to the Form 3 originally filed on February 13, 2026 is being filed to report an additional grant of 12,670 restricted stock units beneficially owned by the Reporting Person as of February 5, 2026, that was inadvertently omitted from the original Form 3. Exhibit List: Exhibit 24.1 - Power of Attorney.

	/s/ Harold Callo Sanchez, as Attorney-in-Fact	05/11/2026
	** 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).
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 3: SEC 1473 (03-26)

Amendment: SEC Form 3 filed by new insider Mahrer Thomas