TTI CFO Matthew Sanderson Converts RSUs; Surrenders Shares

What Happened

• Matthew Sanderson, Executive Vice President & Chief Financial Officer of Tetra Technologies (TTI), had restricted stock units (RSUs) vest on Aug 25, 2026 and converted them into common stock. Two RSU vesting events resulted in 15,124 and 14,570 shares (total 29,694) issued to him at $0.00 exercise/conversion price.
• To satisfy tax-withholding obligations, Sanderson surrendered 5,952 shares (valued at $6.77 each = $40,295) and 5,734 shares (valued at $6.77 each = $38,819), for a total of 11,686 shares surrendered and $79,114 withheld. Net new shares received = 29,694 − 11,686 = 18,008 shares.

Key Details

• Transaction date: 2026-08-25.
• Actions/codes: M = exercise/conversion of derivative (RSU conversion into common stock); F = shares surrendered to issuer to satisfy tax withholding.
• Per-share value used for withholding: $6.77; total tax withholding = $79,114.
• Exercise/conversion price: $0.00 for the issued shares.
• Shares owned following the transactions: Not specified in the provided filing.
• Relevant footnotes: RSUs granted 02/19/2024 (vested) and 02/28/2025 (vested); remaining unvested portions of awards vest semiannually through 02/25/2027 and 02/25/2028 (F1–F6). F2/F4 note the surrendered units were for tax withholding.
• Filing timeliness: No late filing flag indicated in the provided data.

Context

• This was a vesting and conversion of RSUs (derivative conversion), not an open-market purchase or sale for investment; the surrender of shares for taxes is routine when equity awards vest (a cashless sell-to-cover). Such transactions reflect compensation realization rather than a direct buy/sell trade signaling the insider’s market view.