T1 Energy awards Thomas Mahrer 10,000 stock units

The RSUs vest in three equal annual installments from November 2, 2027, through November 2, 2029, and are net settled in Common Stock.

Available on EDGAR 11/10/2026 - 07:35 PM EST Accepted by SEC EDGAR 11/10/2026 - 07:35 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

T1 Energy Inc. Chief Accounting Officer Thomas Mahrer received an award of 10,000 restricted stock units (RSUs) on November 8, 2026, bringing his reported RSU position to 10,000. Each RSU represents the right to receive one share of Common Stock. The RSUs vest in equal annual installments of one-third on November 2, 2027, November 2, 2028, and November 2, 2029, and are net settled in Common Stock.

Insider Trade Summary

Grant/Award: 10,000 shares

Grant/Award 1 txn

Insider Mahrer Thomas

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units (RSUs) F1, F2	10,000	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units (RSUs) — 10,000 units (Direct)

Footnotes (2)

1. F1. Each Restricted Stock Unit ("RSU") represents a right to receive one share of Common Stock granted pursuant to the 2021 Equity Incentive Plan (amended and restated as of April 22, 2024 (the "Plan")).
2. F2. Consists of RSUs granted under the Plan pursuant to a unanimous written consent of the Compensation Committee of the Company's Board of Directors, which was executed on November 8, 2026. The RSUs vest in equal annual installments, one-third (1/3) on November 2, 2027; one-third (1/3) on November 2, 2028; and one-third (1/3) on November 2, 2029. The RSUs are net settled in shares of Common Stock.

Key Figures

RSUs awarded: 10,000 RSUs Reported resulting RSU position: 10,000 RSUs Shares per RSU: 1 Common Stock share +3 more

6 metrics

RSUs awarded 10,000 RSUs Awarded November 8, 2026

Reported resulting RSU position 10,000 RSUs Following the award

Shares per RSU 1 Common Stock share Each RSU represents a right to receive one share

First vesting installment One-third of the RSUs November 2, 2027

Second vesting installment One-third of the RSUs November 2, 2028

Third vesting installment One-third of the RSUs November 2, 2029

Key Terms

Restricted Stock Unit, net settled, equal annual installments, 2021 Equity Incentive Plan

4 terms

Restricted Stock Unit financial

"Each Restricted Stock Unit ("RSU") represents a right to receive one share"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

net settled financial

"The RSUs are net settled in shares of Common Stock"

equal annual installments financial

"The RSUs vest in equal annual installments"

2021 Equity Incentive Plan financial

"granted pursuant to the 2021 Equity Incentive Plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many RSUs did T1 Energy (TE) award Thomas Mahrer?

Thomas Mahrer, T1 Energy's Chief Accounting Officer, received an award of 10,000 RSUs on November 8, 2026. Each RSU represents a right to receive one share of Common Stock.

When do T1 Energy's (TE) RSUs vest?

The RSUs vest in equal annual installments: one-third on November 2, 2027, one-third on November 2, 2028, and one-third on November 2, 2029. They are net settled in shares of Common Stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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

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^*

Mahrer Thomas

(Last) (First) (Middle)

1211 E 4TH ST.

(Street)

AUSTIN TEXAS 78702

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/08/2026

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

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

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

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

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
Restricted Stock Units (RSUs)	(1)	11/08/2026		A		10,000		(2)	(2)	Common Stock	10,000	$0	10,000	D

Explanation of Responses:

1. Each Restricted Stock Unit ("RSU") represents a right to receive one share of Common Stock granted pursuant to the 2021 Equity Incentive Plan (amended and restated as of April 22, 2024 (the "Plan")).

2. Consists of RSUs granted under the Plan pursuant to a unanimous written consent of the Compensation Committee of the Company's Board of Directors, which was executed on November 8, 2026. The RSUs vest in equal annual installments, one-third (1/3) on November 2, 2027; one-third (1/3) on November 2, 2028; and one-third (1/3) on November 2, 2029. The RSUs are net settled in shares of Common Stock.

Remarks:

	/s/ Harold Callo Sanchez, as Attorney-in-Fact	11/10/2026
	** 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 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)