Volpi Kirsten M 4

What Happened
Kirsten M. Volpi, a director of Tetra Tech Inc. (TTEK), exercised stock options on February 10, 2026. She acquired 1,000 common shares by exercising options at an exercise price of $9.59 per share, for a total cash outlay of $9,590. The filing also shows the corresponding derivative (the option) was converted/disposed (reported at $0), which is the usual bookkeeping entry when an option is exercised.

Key Details

• Transaction date: 2026-02-10
• Exercise: 1,000 shares acquired at $9.59 each (total $9,590) — SEC transaction code M (option exercise)
• Derivative disposition: 1,000 option units reported disposed at $0 (reflects conversion of the option into shares)
• Shares owned after transaction: Not specified in this filing
• Footnote: F1 — the option becomes 100% exercisable on the grant-date anniversary
• Filing timeliness: Report filed 2026-02-12 for a 2026-02-10 transaction (filed promptly; no late-report flag indicated)

Context
This was an exercise of vested options, not an open-market sale — Volpi paid cash to acquire the shares rather than selling them immediately (no cashless sale reported). Exercises are routine for insiders when options vest and do not by themselves indicate a buy/sell opinion; they simply convert an existing derivative into common shares.