# EDGAR Filing Document

**Accession Number:** 0000844965
**File Stem:** 0000844965-26-000027
**Filing Date:** 2026-4
**Character Count:** 6348
**Document Hash:** 66af987c9882a407b4bc6bfee3894b40
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000844965-26-000027.hdr.sgml**: 20260409

**ACCESSION NUMBER**: 0000844965-26-000027

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260409

**DATE AS OF CHANGE**: 20260409

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TETRA TECHNOLOGIES INC
- **CENTRAL INDEX KEY:** 0000844965
- **STANDARD INDUSTRIAL CLASSIFICATION:** CRUDE PETROLEUM & NATURAL GAS [1311]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 742148293
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-13455
- **FILM NUMBER:** 26850356

**BUSINESS ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **STREET 2:** SUITE 600, BOX 4
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389
- **BUSINESS PHONE:** 281-367-1983

**MAIL ADDRESS:**
- **STREET 1:** 10000 ENERGY DRIVE
- **STREET 2:** SUITE 600, BOX 4
- **CITY:** SPRING
- **STATE:** TX
- **ZIP:** 77389

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**SCHEDULE 14A INFORMATION**

**Proxy Statement Pursuant to Section 14(a) of the**

**Securities Exchange Act of 1934**

**(Amendment No. -)**

Filed by the registrant ☒ Filed by a party other than the registrant ☐.

Check the appropriate box:

☐ Preliminary proxy statement

☐ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2))

☐ Definitive proxy statement

☒ Definitive additional materials

☐ Soliciting material under Rule 14a-12

**<u>TETRA TECHNOLOGIES, INC.</u>**

**(Name of Registrant as Specified in its Charter)**

**(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)**

Payment of Filing Fee (check all boxes that apply):

☒ No fee required

☐ Fee paid previously with preliminary materials

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

![](notice001.jpg)

Step 1: Go to www.envisionreports.com/TTI. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. www.envisionreports.com/TTI Online Go to www.envisionreports.com/TTI or scan the QR code — login details are located in the shaded bar below. Stockholder Meeting Notice 049CWB Important Notice Regarding the Availability of Proxy Materials for the TETRA Technologies, Inc. Stockholder Meeting to be Held on Friday, May 22, 2026 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders' meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The 2025 Annual Report and Proxy Statement are available at: Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before May 12, 2026 to facilitate timely delivery. 2 N O T Easy Online Access — View your proxy materials and vote. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Step 4: Make your selections as instructed on each screen for your delivery preferences. Step 5: Vote your shares. Votes submitted electronically must be received by 11:59 pm ET, on May 21, 2026. MMMMMMMMMMMM M M M M M M M M M 0 0 0 0 0 1 MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 ENDORSEMENT_LINE______________ SACKPACK_____________ 1234 5678 9012 345 C 1234567890 C O Y MMMMMMM

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![](notice002.jpg)

Here's how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials. — Internet – Go to www.envisionreports.com/TTI. Click Cast Your Vote or Request Materials. — Phone – Call us free of charge at 1-866-641-4276. — Email – Send an email to investorvote@computershare.com with "Proxy Materials TETRA Technologies, Inc." in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, all requests for a paper copy of proxy materials must be received by May 12, 2026. TETRA Technologies, Inc.'s Annual Meeting of Stockholders will be held on Friday, May 22, 2026, at the TETRA Technologies Corporate Headquarters Building, 10000 Energy Drive, Spring, Texas, at 11:00 am Local Time. Proposals to be voted on at the meeting are listed below along with the Board of Directors' recommendations. The Board of Directors recommends a vote FOR all nominees listed in Proposal 1 and FOR Proposals 2, 3 and 4. 1. Election of Directors: Nominees: 01) Thomas R. Bates, Jr. 02) Christian A. Garcia 03) John F. Glick 04) Angela D. John 05) Sharon B. McGee 06) Brady M. Murphy 07) Julia A. Sloat 08) Shawn D. Williams 2. Advisory vote to approve executive compensation. 3. Ratification of the appointment of Grant Thornton LLP as our independent registered public accounting firm. 4. Ratification of Amendment No. 1 to our Tax Benefits Preservation Plan. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. You may obtain directions to the location of the 2026 annual meeting by contacting our Investor Relations Department at 281-367-1983 or at the Investor Relations area of our website at www.onetetra.com. Stockholder Meeting Notice

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