SEC Form 4 · Updated Daily
TTEK
— TETRA TECH, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| BATRACK DAN L | Director · Officer | 354,894 | 2025-11-30 | M |
| SHOEMAKER LESLIE L | Officer | 329,528 | 2025-11-30 | M |
| Ritrievi Kimberly E | Director | 192,259 | 2026-03-16 | A |
| BURDICK STEVEN M | Officer | 138,251 | 2026-02-06 | G |
| Maguire Joanne M | Director | 97,785 | 2024-09-30 | M |
| BROWNLIE WILLIAM R | Officer | 96,843 | 2022-03-18 | M |
| KING DAVID W | Reporting Owner | 87,580 | 2011-06-28 | M |
| Hopson Preston | Officer | 85,186 | 2025-11-30 | M |
| PAGENKOPF JAMES R | Officer | 80,543 | 2015-10-12 | M |
| CHU RONALD J | Officer | 79,499 | 2017-11-09 | M |
| Volpi Kirsten M | Director | 74,218 | 2026-08-04 | M |
| LEWIS J CHRISTOPHER | Director | 62,623 | 2022-12-14 | S |
| BIEBER MICHAEL A | Officer | 55,693 | 2015-02-25 | M |
| Birkenbeuel Gary | Director | 51,032 | 2026-01-12 | A |
| SMITH ALBERT E | Director | 47,570 | 2020-02-26 | M |
| CARTER BRIAN N | Officer | 46,496 | 2026-02-04 | S |
| Argus Roger R | Officer | 42,755 | 2025-11-30 | M |
| GROSS FRANK C JR | Officer | 39,305 | 2015-06-22 | M |
| CHRISTENSEN CRAIG L | Officer | 36,407 | 2021-11-30 | G |
| LEMMON RICHARD A | Officer | 35,775 | 2021-12-07 | G |
| BOX SAM W | Officer | 32,491 | 2008-12-31 | A |
| GRANT HUGH M | Director | 32,331 | 2020-02-24 | M |
| ROGERS DONALD I JR | Officer | 25,102 | 2010-12-31 | A |
| SALIN JANIS B | Officer | 25,046 | 2017-11-29 | S |
| MCDONALD KEVIN P | Officer | 22,038 | 2018-11-18 | F |
| TRULY RICHARD H | Director | 21,220 | 2017-04-10 | M |
| Gandhi Prashant | Director | 16,553 | 2025-11-30 | M |
| Teufele Bernard | Officer | 15,972 | 2021-11-23 | A |
| Amidon Derek G | Officer | 14,780 | 2022-11-18 | M |
| THOMPSON J KENNETH | Director | 10,985 | 2024-02-14 | S |
| Obiaya Christiana | Director | 9,666 | 2026-02-19 | M |
| SMITH DOUGLAS G | Officer | 7,942 | 2013-01-04 | S |
| HAUN PATRICK D | Officer | 7,098 | 2008-12-31 | A |
| Auman Jan K | Officer | 7,002 | 2019-11-20 | M |
| WALSH MARK A | Officer | 6,762 | 2007-12-31 | A |
| HADEN PATRICK C | Director | 3,062 | 2022-03-17 | S |
| Hudkins Jill | Officer | 2,936 | 2024-04-26 | M |
| Feeler Jeffrey R | Director | 1,900 | 2026-05-15 | P |
| Rynning Mark A | Officer | 1,651 | 2021-11-18 | M |
| O'Rourke Brendan M. | Officer | 1,344 | 2022-01-29 | F |
| Douglas John M. | Director | 718 | 2025-02-27 | M |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2031-11-18 | BATRACK DAN L | Open-market sale | 15,000 | $28.76 | 159,029 |
| 2026-08-04 | Volpi Kirsten M | Option exercise (derivative) | 2,300 | $0.00 | 4,000 |
| 2026-08-04 | Volpi Kirsten M | Option exercise | 2,300 | $9.59 | 74,218 |
| 2026-06-04 | Volpi Kirsten M | Option exercise (derivative) | 1,700 | $0.00 | 6,300 |
| 2026-06-04 | Volpi Kirsten M | Option exercise | 1,700 | $9.59 | 71,918 |
| 2026-05-15 | Feeler Jeffrey R | Open-market buy | 1,900 | $26.41 | 1,900 |
| 2026-04-27 | Thornburg Eric W | Grant / award (derivative) | 1,259 | $0.00 | 1,259 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise (derivative) | 1,925 | $0.00 | 1,925 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise (derivative) | 2,250 | $0.00 | 2,250 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise (derivative) | 4,500 | $0.00 | 0 |
| 2026-03-16 | Ritrievi Kimberly E | Grant / award | 25,883 | $0.00 | 192,259 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 1,718 | $0.00 | 166,376 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 2,125 | $0.00 | 164,658 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 1,900 | $0.00 | 162,533 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 795 | $0.00 | 160,633 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 795 | $0.00 | 159,838 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 2,050 | $0.00 | 159,043 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 2,910 | $0.00 | 156,993 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 1,925 | $0.00 | 154,083 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 2,250 | $0.00 | 152,158 |
| 2026-03-16 | Ritrievi Kimberly E | Option exercise | 4,500 | $0.00 | 149,908 |
| 2026-02-19 | Argus Roger R | Grant / award (derivative) | 28,174 | $0.00 | 28,174 |
| 2026-02-19 | Obiaya Christiana | Option exercise (derivative) | 495 | $0.00 | 0 |
| 2026-02-19 | Obiaya Christiana | Option exercise | 495 | $0.00 | 9,666 |
| 2026-02-10 | Volpi Kirsten M | Option exercise (derivative) | 1,000 | $0.00 | 8,000 |
| 2026-02-10 | Volpi Kirsten M | Option exercise | 1,000 | $9.59 | 70,218 |
| 2026-02-06 | BURDICK STEVEN M | Gift | 11,100 | $0.00 | 138,251 |
| 2026-02-04 | CARTER BRIAN N | Open-market sale | 9,979 | $40.23 | 46,496 |
| 2026-01-26 | Hardwick M Susan | Grant / award (derivative) | 1,754 | $0.00 | 1,754 |
| 2026-01-26 | Feeler Jeffrey R | Grant / award (derivative) | 1,754 | $0.00 | 1,754 |
| 2026-01-12 | Ritrievi Kimberly E | Grant / award | 2,208 | $0.00 | 145,408 |
| 2026-01-12 | Birkenbeuel Gary | Option exercise (derivative) | 1,590 | $0.00 | 0 |
| 2026-01-12 | Birkenbeuel Gary | Grant / award | 4,397 | $0.00 | 51,032 |
| 2026-01-12 | Birkenbeuel Gary | Option exercise | 1,590 | $0.00 | 46,635 |
| 2025-11-30 | BATRACK DAN L | Option exercise (derivative) | 19,330 | $0.00 | 57,990 |
| 2025-11-30 | BATRACK DAN L | Option exercise (derivative) | 21,255 | $0.00 | 42,505 |
| 2025-11-30 | BATRACK DAN L | Tax withholding | 22,396 | $34.74 | 332,498 |
| 2025-11-30 | BATRACK DAN L | Option exercise | 19,330 | $0.00 | 354,894 |
| 2025-11-30 | BATRACK DAN L | Option exercise | 21,255 | $0.00 | 335,564 |
| 2025-11-30 | Argus Roger R | Option exercise (derivative) | 2,455 | $0.00 | 7,363 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.