Tetra Tech Inc
TTEK- Exchange
- Nasdaq
- Industry
- Services-Engineering Services
- SEC CIK
- 0000831641
No open-market purchases or sales by Tetra Tech Inc insiders were filed in the last 90 days; 555 institutions reported holding it in 13F filings for Q2 2026, worth $7.32B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Tetra Tech Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Tetra Tech Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Volpi Kirsten M | Director | 74,218 | Aug 6, 2026 | 5 |
| Feeler Jeffrey R | Director | 1,900 | May 15, 2026 | 2 |
| Thornburg Eric W | Director | – | Apr 28, 2026 | 1 |
| Ritrievi Kimberly E | Director | 192,259 | Mar 18, 2026 | 3 |
| Argus Roger R | President and CEO | 39,890 | Feb 20, 2026 | 3 |
| Obiaya Christiana | Director | 9,666 | Feb 20, 2026 | 3 |
| Burdick Steven M | EVP, CFO | 138,251 | Feb 6, 2026 | 3 |
| Carter Brian N | SVP, Corporate Controller | 46,496 | Feb 6, 2026 | 2 |
| Hardwick M Susan | Director | – | Jan 28, 2026 | 1 |
| Birkenbeuel Gary | Director | 51,032 | Jan 14, 2026 | 2 |
| Batrack Dan L | Chairman and CEO | 332,498 | Dec 2, 2025 | 2 |
| Shoemaker Leslie L | EVP, Chief Sustainability | 325,821 | Dec 2, 2025 | 2 |
| Hopson Preston III | EVP, Chief Legal/Human Capital | 83,142 | Dec 2, 2025 | 2 |
| Gandhi Prashant | Director | 16,553 | Dec 2, 2025 | 2 |
| Douglas John M. | Director | 610 | Mar 3, 2025 | 0 |
| Maguire Joanne M | Director | 97,785 | Oct 2, 2024 | 0 |
| Hudkins Jill | President | 2,828 | Apr 30, 2024 | 0 |
| Thompson J Kenneth | Director | 10,985 | Feb 16, 2024 | 0 |
| Lewis J Christopher | Director | 57,875 | Dec 16, 2022 | 0 |
| Amidon Derek G | SVP, Comm./Int'l Svcs. Group | 11,141 | Nov 22, 2022 | 0 |
| O'Rourke Brendan M. | SVP, Enterprise Risk Mgmt. | 1,344 | Nov 18, 2022 | 0 |
| Haden Patrick C | Director | 3,062 | Mar 21, 2022 | 0 |
| Brownlie William R | SVP, Chief Engineer | 85,376 | Mar 21, 2022 | 0 |
| Lemmon Richard A | SVP, Corporate Administration | 35,775 | Dec 8, 2021 | 0 |
| Christensen Craig L | SVP, CIO | 36,407 | Nov 30, 2021 | 0 |
| Teufele Bernard | SVP, Canada and South America | 12,867 | Nov 24, 2021 | 0 |
| Rynning Mark A | SVP, R&S Infrastructure | 1,164 | Nov 22, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 12, 2024 (view filing) | Sep 10 | 2 days | Volpi Kirsten MDirector | SSale | −1.95K | $46.00 | −$89.7K | −3.0%63.8K after | |
| Sep 12, 2024 (view filing) | Sep 10 | 2 days | Shoemaker Leslie LEVP, Chief Sustainability | SSale | −78.4K | $46.11 | −$3.62M | −20.9%296.0K after | |
| Sep 12, 2024 (view filing) | Sep 11 | 1 day | Ritrievi Kimberly EDirector | SSale | −6.50K | $46.48 | −$302.1K | −4.3%143.2K after | |
| Sep 12, 2024 (view filing) | Sep 11 | 1 day | Burdick Steven MEVP, CFO | SSale | −36.8K | $46.57 | −$1.72M | −24.6%112.6K after | |
| Feb 6, 2025 (view filing) | Feb 4 | 2 days | Volpi Kirsten MDirector | SSale | −10.1K | $34.33 | −$347.3K | −14.4%60.2K after | 3 lots |
| Aug 15, 2025 (view filing) | Aug 14 | 1 day | Birkenbeuel GaryDirector | SSale | −2.39K | $36.00 | −$86.0K | −6.0%37.7K after | |
| Feb 6, 2026 (view filing) | Feb 4 | 2 days | Carter Brian NSVP, Corporate Controller | SSale | −9.98K | $40.23 | −$401.5K | −17.7%46.5K after | |
| May 15, 2026 (view filing) | May 15 | Same day | Feeler Jeffrey RDirector | PPurchase | +1.90K | $26.41 | +$50.2K | New position1.90K after |