[Form 4] TETRA Technologies, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Tetra Technologies insider report: Sr. Vice President & CFO Elijio V. Serrano reported several restricted stock unit (RSU) vesting and related share-withholding transactions on 08/25/2025. A total of 41,421 RSUs vested (21,256 from a 2023 award and 20,165 from a 2024 award), of which 16,300 shares were surrendered to the issuer to satisfy tax-withholding obligations at a price of $4.49 per share. The net effect was an increase of 25,121 shares beneficially owned, leaving the reporting person with 1,492,208 shares reported as beneficially owned after the transactions. The filing notes remaining unvested portions of the awards that vest semiannually through February 2026 and February 2027.

Positive

• Net insider ownership increased by 25,121 shares due to RSU vesting, bringing beneficial ownership to 1,492,208 shares
• Vesting reflects alignment between executive compensation and shareholder interests through time-based RSUs
• Remaining RSUs vest semiannually through February 2026 and February 2027, supporting retention

Negative

• None.

Insights

Financial Analyst

TL;DR: Insider saw a net increase of 25,121 TTI shares from RSU vesting after tax-withholding surrender, a routine compensation-related ownership change.

The transactions reflect scheduled vesting of equity compensation rather than open-market buys or sells. Vesting converted 41,421 RSUs into common shares, with 16,300 surrendered to cover tax withholding at $4.49 per share. The net addition of 25,121 shares modestly increases insider ownership to 1,492,208 shares, which may slightly strengthen alignment with shareholders but is not a material change relative to typical outstanding share counts. No option exercises or cash purchases were reported.

Corporate Governance Expert

TL;DR: This Form 4 documents expected RSU vesting and tax withholding; it indicates routine executive compensation and continued retention incentives.

The filing documents standard equity-compensation mechanics: time-based RSU vesting from awards granted in 2023 and 2024 and automatic share surrender to satisfy tax obligations. The explanations state remaining unvested tranches that vest semiannually through February 2026 and February 2027, indicating ongoing retention incentives. There are no departures, discretionary sales, or unusual transactions disclosed here.

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

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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^*

SERRANO ELIJIO V

(Last) (First) (Middle)

24955 INTERSTATE 45 NORTH

(Street)

THE WOODLANDS TX 77380

(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)
	Sr. Vice President & CFO

3. Date of Earliest Transaction (Month/Day/Year)
08/25/2025

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 Stock	08/25/2025		M(1)		21,256	A	$0.00	1,488,343	D
Common Stock	08/25/2025		F(2)		8,365	D	$4.49	1,479,978	D
Common Stock	08/25/2025		M(3)		20,165	A	$0.00	1,500,143	D
Common Stock	08/25/2025		F(4)		7,935	D	$4.49	1,492,208	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	08/25/2025		M(1)			21,256	(5)	(5)	Common Stock	21,256	$0.00	21,256	D
Restricted Stock Units	$0.00	08/25/2025		M(3)			20,165	(6)	(6)	Common Stock	20,165	$0.00	60,497	D

Explanation of Responses:

1. Represents vested shares of restricted stock units granted on February 22, 2023. Restricted stock units convert into common stock on a one-for-one basis.

2. Reflects units surrendered to the Issuer to satisfy tax withholding obligations upon the vesting of the restricted stock unit granted on February 22, 2023.

3. Represents vested shares of restricted stock units granted on February 19, 2024. Restricted stock units convert into common stock on a one-for-one basis.

4. Reflects units surrendered to the Issuer to satisfy tax withholding obligations upon the vesting of the restricted stock unit granted on February 19, 2024.

5. The remaining unvested portion of this restricted stock unit award will vest every six months until fully vested on February 25, 2026. Each restricted stock unit represents the contingent right to receive one share of the Issuer's common stock upon vesting of the unit.

6. The remaining unvested portion of this restricted stock unit award will vest every six months until fully vested on February 25, 2027. 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	08/27/2025
	** 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).
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FAQ

What did Elijio V. Serrano report on the Form 4 for TTI?

The report discloses vesting of RSUs and related tax-withholding transactions on 08/25/2025, resulting in a net increase of 25,121 shares and reported beneficial ownership of 1,492,208 shares.

How many RSUs vested and how many shares were surrendered for taxes?

A total of 41,421 RSUs vested (21,256 from 2023 award and 20,165 from 2024 award); 16,300 shares were surrendered to satisfy tax-withholding at $4.49 per share.

Do any unvested RSUs remain and when do they vest?

Yes. The remaining unvested portion of the 2023 award vests semiannually until February 25, 2026, and the 2024 award vests semiannually until February 25, 2027.

Was this Form 4 filed jointly or by one reporting person?

The form was filed by one reporting person, Elijio V. Serrano.

Who signed the Form 4 filing for the reporting person?

The form was signed by Kimberly M. O'Brien, attorney in fact on 08/27/2025.