1 unchanged sentence
Rule 10b5-1 Trading Arrangements
−Removed: During the three months ended September 30, 2025, no director or officer of TETRA adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
−Removed: 3.1 Certificate of Designation of Series A Junior Participating Preferred Stock (incorporated by reference to Exhibit 3.1 to the Company’s Form 8-K filed on March 1, 2023 (SEC File No.
+Added: During the three months ended March 31, 2026, Brady Murphy , President and Chief Executive Officer , adopted a Rule 10b5‑1 trading arrangement intended to comply with Rule 10b5‑1(c).
+Added: The plan, adopted on March 30, 2026 , provides for transactions over a period beginning July 1, 2026 and ending April 1, 2027 , and covers an aggregate of 349,100 shares of the Company’s common stock.
+Added: No trades may occur until the mandatory 90-day cooling‑off period required under Rule 10b5‑1(c) has elapsed.
+Added: No other director or officer of TETRA adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.
+Added: Certificate of Designation of Series A Junior Participating Preferred Stock, as filed with the Secretary of State of the State of Delaware on February 25, 2026 (incorporated by reference to Exhibit 3.1 to the Company’s Annual Report on Form 10-K filed on February 25, 2026 (SEC File No.
Amended and Restated Certificate of Incorporation of TETRA Technologies, Inc.
−Removed: (incorporated by reference to Exhibit 3.1 to the Company’s Form 8-K filed on May 25, 2023 (SEC File No.
+Added: (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on May 25, 2023 (SEC File No.
Second Amended and Restated Bylaws of TETRA Technologies, Inc.
−Removed: (incorporated by reference to Exhibit 3.2 to the Company’s Form 8-K filed on May 25, 2023 (SEC File No.
+Added: (incorporated by reference to Exhibit 3.2 to the Company’s Current Report on Form 8-K filed on May 25, 2023 (SEC File No.
+Added: Amendment No.
+Added: 1 to Third Amended and Restated 2018 Equity Incentive Plan adopted by TETRA Technologies, Inc.
+Added: on February 20, 2026.
31.1* Certification Pursuant to Rule 13a-14(a) or 15d-14(a) of the Exchange Act, As Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
13 unchanged sentences
++ Attached as Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language):
−Removed: (i) Consolidated Statements of Operations for the three and nine-month periods ended September 30, 2025 and 2024;
−Removed: (ii) Consolidated Statements of Comprehensive Income for the three and nine-month periods ended September 30, 2025 and 2024;
−Removed: (iii) Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024;
−Removed: (iv) Consolidated Statements of Equity for the nine-month periods ended September 30, 2025 and 2024;
−Removed: (v) Consolidated Statements of Cash Flows for the nine-month periods ended September 30, 2025 and 2024;
−Removed: and (vi) Notes to Consolidated Financial Statements for the nine months ended September 30, 2025.
+Added: (i) Consolidated Statements of Operations for the three-month periods ended March 31, 2026 and 2025;
+Added: (ii) Consolidated Statements of Comprehensive Income for the three-month periods ended March 31, 2026 and 2025;
+Added: (iii) Condensed Consolidated Balance Sheets as of March 31, 2026 and December 31, 2025;
+Added: (iv) Consolidated Statements of Equity for the three-month periods ended March 31, 2026 and 2025;
+Added: (v) Consolidated Statements of Cash Flows for the three-month periods ended March 31, 2026 and 2025;
+Added: and (vi) Notes to Consolidated Financial Statements for the three months ended March 31, 2026.
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
TETRA Technologies, Inc.
−Removed: October 28, 2025 By:
+Added: April 29, 2026 By:
President and Chief Executive Officer
Principal Executive Officer
−Removed: October 28, 2025 By:
−Removed: Senior Vice President and Chief Financial Officer
+Added: April 29, 2026 By:
+Added: /s/Matthew J.
+Added: Executive Vice President and Chief Financial Officer
Principal Financial Officer
−Removed: October 28, 2025 By:
+Added: April 29, 2026 By:
/s/Katherine Kokenes
3 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.