TETRA Technologies' Kokenes receives 9,881 shares

The remaining unvested portion will vest every six months until fully vested on September 25, 2028.

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Form Type

Rhea-AI Filing Summary

Tetra Technologies Inc. (TTI) VP & Chief Accounting Officer Kathrine Kokenes had 9,881 restricted stock units vest and convert into 9,881 common shares on September 29, 2026, on a one-for-one basis. At vesting, 3,691 shares were surrendered to the issuer to satisfy tax withholding obligations. Her reported resulting position was 19,764 restricted stock units.

Insider Trade Summary

9,881 shares exercised/converted

Exercise 3 txns

Insider Kokenes Kathrine

Role VP & Chief Accounting Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units ^{F1, F3}	9,881	$0.00	$0.00
Exercise	Common Stock ^F1	9,881	$0.00	$0.00
Tax Withholding	Common Stock ^F2	3,691	$5.81	$21K

Holdings After Transaction: Restricted Stock Units — 19,764 contracts (Direct); Common Stock — 6,190 shares (Direct)

Footnotes (3)

F1. Represents vested shares of restricted stock units granted on September 29, 2025. Restricted stock units convert into common stock on a one-for-one basis.
F2. Reflects units surrendered to the Issuer to satisfy tax withholding obligations upon the vesting of the restricted stock unit granted on September 29, 2025.
F3. The remaining unvested portion of this restricted stock unit award will vest every six months until fully vested on September 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.

Key Figures

Restricted stock units vested: 9,881 units Common shares acquired on conversion: 9,881 shares Shares surrendered for tax withholding: 3,691 shares +4 more

7 metrics

Restricted stock units vested 9,881 units September 29, 2026

Common shares acquired on conversion 9,881 shares September 29, 2026; one-for-one conversion

Shares surrendered for tax withholding 3,691 shares Upon vesting on September 29, 2026

Restricted stock units following transaction 19,764 units Reported resulting position

Conversion ratio 1 common share per restricted stock unit Units convert upon vesting

Vesting frequency Every six months Remaining unvested portion of the award

Full vesting date September 25, 2028 Remaining unvested portion of the award

Key Terms

Restricted stock units, one-for-one basis, tax withholding obligations

3 terms

Restricted stock units financial

"Restricted stock units convert into common stock on a one-for-one basis."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

one-for-one basis financial

"convert into common stock on a one-for-one basis"

tax withholding obligations financial

"satisfy tax withholding obligations upon the vesting"

FAQ

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

How many TTI restricted stock units vested and converted into shares?

On September 29, 2026, 9,881 vested restricted stock units converted into 9,881 common shares on a one-for-one basis.

How many TTI shares were surrendered for tax withholding?

At vesting on September 29, 2026, 3,691 shares were surrendered to the issuer to satisfy tax withholding obligations.

What is the vesting schedule for Kathrine Kokenes's remaining TTI award?

The remaining unvested portion will vest every six months until fully vested on September 25, 2028.

How many TTI restricted stock units remained after the transaction?

The reported resulting position was 19,764 restricted stock units.

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

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Available on EDGAR 09/30/2026 - 04:27 PM Accepted by SEC EDGAR 09/30/2026 - 04:27 PM

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^*

Kokenes Kathrine

(Last)

(First)

(Middle)

10000 ENERGY DRIVE

SUITE 600

(Street)

SPRING

TEXAS

77389

(City)

(State)

(Zip)

UNITED STATES

(Country)

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)
	VP & Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/29/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	09/29/2026		M⁽¹⁾		9,881	A	$0.00	9,881	D
Common Stock	09/29/2026		F⁽²⁾		3,691	D	$5.81	6,190	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	$0.00	09/29/2026		M⁽¹⁾			9,881	⁽³⁾	⁽³⁾	Common Stock	9,881	$0.00	19,764	D

Explanation of Responses:

1. Represents vested shares of restricted stock units granted on September 29, 2025. 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 September 29, 2025.

3. The remaining unvested portion of this restricted stock unit award will vest every six months until fully vested on September 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	09/30/2026
	** 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)

Source: View Original Filing on SEC EDGAR