TTEK (Tetra Tech Inc)
Insider Trading Activity
Every open-market purchase and sale reported by TTEK officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-06 | Kirsten M Volpi | Director | M | — | — |
| 2026-08-06 | Kirsten M Volpi | Director | M | — | — |
| 2026-06-05 | Kirsten M Volpi | Director | M | — | — |
| 2026-05-15 | Jeffrey R Feeler | Director | Buy | — | — |
| 2026-04-28 | Eric W Thornburg | Director | A | — | — |
| 2026-03-18 | Kimberly E Ritrievi | Director | MIXED | — | — |
| 2026-02-20 | Roger R Argus | President and CEO | A | — | — |
| 2026-02-20 | Christiana Obiaya | Director | M | — | — |
| 2026-02-12 | Kirsten M Volpi | Director | M | — | — |
| 2026-02-06 | BRIAN N CARTER | SVP, Corporate Controller | Sell | — | — |
| 2026-02-06 | STEVEN M BURDICK | EVP, CFO | G | — | — |
| 2026-01-28 | M Susan Hardwick | Director | A | — | — |
| 2026-01-28 | Jeffrey R Feeler | Director | A | — | — |
| 2026-01-14 | Kimberly E Ritrievi | Director | A | — | — |
| 2026-01-14 | Gary Birkenbeuel | Director | MIXED | — | — |
| 2025-12-03 | Kimberly E Ritrievi | Director | A | — | — |
| 2025-12-02 | DAN L BATRACK | Chairman and CEO | MIXED | — | — |
| 2025-12-02 | Roger R Argus | President | MIXED | — | — |
| 2025-12-02 | Gary Birkenbeuel | Director | A | — | — |
| 2025-12-02 | STEVEN M BURDICK | EVP, CFO | MIXED | — | — |
| 2025-12-02 | BRIAN N CARTER | SVP, Corporate Controller | MIXED | — | — |
| 2025-12-02 | Prashant Gandhi | Director | M | — | — |
| 2025-12-02 | Preston Hopson | EVP, Chief Legal/Human Capital | MIXED | — | — |
| 2025-12-02 | Christiana Obiaya | Director | M | — | — |
| 2025-12-02 | LESLIE L SHOEMAKER | EVP, Chief Sustainability | MIXED | — | — |
| 2025-12-02 | Kirsten M Volpi | Director | M | — | — |
| 2025-11-20 | Kirsten M Volpi | Director | A | — | — |
| 2025-11-20 | STEVEN M BURDICK | EVP, CFO | MIXED | — | — |
| 2025-11-20 | Preston Hopson | EVP, Chief Legal/Human Capital | MIXED | — | — |
| 2025-11-20 | LESLIE L SHOEMAKER | EVP, Chief Sustainability | MIXED | — | — |
| 2025-11-20 | Christiana Obiaya | Director | A | — | — |
| 2025-11-20 | Roger R Argus | President | MIXED | — | — |
| 2025-11-20 | Prashant Gandhi | Director | A | — | — |
| 2025-11-20 | DAN L BATRACK | Chairman and CEO | MIXED | — | — |
| 2025-08-15 | Gary Birkenbeuel | Director | Sell | — | — |
| 2025-03-14 | Kimberly E Ritrievi | Director | J | — | — |
| 2025-03-03 | John M. Douglas | Director | MIXED | — | — |
| 2025-02-06 | Kirsten M Volpi | Director | MIXED | — | — |
| 2024-12-03 | Roger R Argus | President, Commer/Int'l Group | MIXED | — | — |
| 2024-12-03 | DAN L BATRACK | Chairman, CEO and President | MIXED | — | — |
| 2024-12-03 | STEVEN M BURDICK | EVP, CFO | MIXED | — | — |
| 2024-12-03 | BRIAN N CARTER | SVP, Corporate Controller | MIXED | — | — |
| 2024-12-03 | Prashant Gandhi | Director | M | — | — |
| 2024-12-03 | Preston Hopson III | EVP, Chief Legal/Human Capital | MIXED | — | — |
| 2024-12-03 | Christiana Obiaya | Director | M | — | — |
| 2024-12-03 | LESLIE L SHOEMAKER | EVP, Chief Sustainability | MIXED | — | — |
| 2024-12-03 | Kirsten M Volpi | Director | M | — | — |
| 2024-11-22 | Roger R Argus | President, Commer/Int'l Group | MIXED | — | — |
| 2024-11-22 | DAN L BATRACK | Chairman, CEO and President | MIXED | — | — |
| 2024-11-22 | Gary Birkenbeuel | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | SVP, Chief Engineer | 426,880 | — |
| — | EXECUTIVE VICE PRESIDENT | 362,715 | — |
| — | Chairman and CEO | 332,498 | — |
| — | EVP, Chief Sustainability | 329,528 | — |
| — | CHIEF FINANCIAL OFFICER | 300,400 | — |
| — | Director | 289,375 | — |
| — | Director | 237,850 | — |
| — | FORMER EVP | 196,525 | — |
| — | EXECUTIVE VICE PRESIDENT | 185,520 | — |
| — | SVP, CIO | 182,035 | — |
| — | SVP, Corporate Administration | 178,875 | — |
| — | Director | 164,658 | — |
| — | VICE PRESIDENT | 162,455 | — |
| — | Director | 161,655 | — |
| — | EVP, CFO | 138,251 | — |
| — | EXECUTVIE VICE PRESIDENT | 125,510 | — |
| — | SVP, GENERAL COUNSEL | 125,230 | — |
| — | Former SVP, Human Resources | 110,190 | — |
| — | Director | 106,100 | — |
| — | Director | 97,785 | — |
| — | EVP, Chief Legal/Human Capital | 85,186 | — |
| — | Director | 74,218 | — |
| — | SVP, Comm./Int'l Svcs. Group | 71,840 | — |
| — | SVP, Canada and South America | 64,335 | — |
| — | Director | 54,925 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the TTEK quote page; the site-wide leaderboard is on the insider transactions hub.