TETRA Technologies (NYSE: TTI) SVP RSUs vest, shares withheld for tax

Rhea-AI Filing Summary

TETRA TECHNOLOGIES INC senior vice president Timothy C. Moeller reported vesting of restricted stock units that converted into common shares and a related tax-withholding share disposition. On February 28, 2026, 27,198 restricted stock units vested and converted into 27,198 shares of common stock at no exercise price, increasing his directly held common stock before tax withholding.

To cover taxes on this vesting, 12,199 common shares were surrendered to the company at $8.66 per share as a tax-withholding disposition, leaving him with 469,445 common shares held directly afterward. He also reported 54,397 restricted stock units held after the transaction, with the remaining unvested portion of this award scheduled to vest every six months until fully vested on February 25, 2028.

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^*

Moeller Timothy C

(Last) (First) (Middle)

10000 ENERGY DRIVE

SUITE 600

(Street)

SPRING TX 77389

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TETRA TECHNOLOGIES INC [ TTI ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP - Supply Chain & Chemicals

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2026

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 Stock	02/28/2026		M(1)		27,198	A	$0.00	481,644	D
Common Stock	02/28/2026		F(2)		12,199	D	$8.66	469,445	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
Restricted Stock Units	$0.00	02/28/2026		M(1)			27,198	(3)	(3)	Common Stock	27,198	$0.00	54,397	D

Explanation of Responses:

1. Represents vested shares of restricted stock units granted on February 28, 2025. Restricted stock units convert into common stock on a one-for-one basis.

2. Reflects units surrendered to the Issuer for tax withholding purposes upon the vesting of the restricted stock unit granted on February 28, 2025.

3. The remaining unvested portion of this restricted stock unit award will vest every six months until fully vested on February 25, 2028. Each restricted stock unit represents the contingent right to receive one share of the Issuer's common stock upon vesting of the unit.

Remarks:

	Kimberly M. O'Brien, attorney in fact	03/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transaction did TETRA TECHNOLOGIES (TTI) report for Timothy C. Moeller?

Timothy C. Moeller reported vesting of restricted stock units that converted into common stock and a related tax-withholding share disposition. The activity reflects equity compensation mechanics rather than open-market buying or selling of TETRA TECHNOLOGIES shares.

How many TETRA TECHNOLOGIES (TTI) restricted stock units vested for Timothy C. Moeller?

A total of 27,198 restricted stock units vested for Timothy C. Moeller and converted into an equal number of TETRA TECHNOLOGIES common shares. The units were granted on February 28, 2025 and convert into common stock on a one-for-one basis upon vesting.

Why were 12,199 TETRA TECHNOLOGIES (TTI) shares surrendered at $8.66?

Moeller surrendered 12,199 common shares to TETRA TECHNOLOGIES at $8.66 per share to cover tax withholding obligations triggered by the RSU vesting. This tax-withholding disposition is coded as an F transaction and is not an open-market sale to third-party investors.

What is Timothy C. Moeller’s TETRA TECHNOLOGIES (TTI) share ownership after the filing?

Following these transactions, Moeller directly held 469,445 TETRA TECHNOLOGIES common shares. He also reported ownership of 54,397 restricted stock units, each representing the contingent right to receive one share of common stock upon future vesting events.

What is the vesting schedule for Timothy C. Moeller’s remaining TETRA TECHNOLOGIES (TTI) RSUs?

The remaining unvested portion of Moeller’s restricted stock unit award will vest every six months until fully vested on February 25, 2028. Each vested unit converts into one share of TETRA TECHNOLOGIES common stock when the vesting condition is satisfied.

Are the TETRA TECHNOLOGIES (TTI) transactions by Timothy C. Moeller open-market buys or sells?

The reported transactions relate to RSU vesting and tax withholding, not open-market trades. RSUs converted into common stock via an exercise or conversion, and shares were surrendered back to TETRA TECHNOLOGIES solely to satisfy tax obligations associated with the vesting.