SERRANO ELIJIO V 4

What Happened Elijio V. Serrano, Senior Vice President & Chief Financial Officer of Tetra Technologies (TTI), had 137,654 restricted stock units (RSUs) vest on March 14, 2026. The RSUs converted into 137,654 common shares (recorded as a derivative conversion). To satisfy tax withholding obligations, 54,167 of those shares were surrendered to the issuer at an effective price of $8.22 per share, generating $445,253. After withholding, Serrano retained 83,487 shares (137,654 − 54,167).

Key Details

• Transaction date: March 14, 2026; Form 4 filed March 17, 2026 (appears timely).
• Vesting/conversion: 137,654 RSUs converted to common stock (code M).
• Tax withholding: 54,167 shares surrendered to issuer at $8.22/share for $445,253 (code F).
• Shares retained after withholding: 83,487 shares.
• Footnotes: F1 — RSUs granted March 14, 2025 vested and convert 1:1 to common stock. F2 — units surrendered for tax withholding. F3 — no remaining unvested portion of this award.
• Transaction codes: M = exercise/conversion of derivative (RSU conversion); F = shares surrendered for tax withholding.

Context This was a vesting of previously granted RSUs, not an open-market buy or sale for investment purposes. Surrendering shares to cover taxes is a routine administrative step and does not necessarily signal insider sentiment. The key takeaway for investors is the net increase in Serrano’s shareholdings (83,487 shares retained) following the vesting.