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.
13F holders, Q2 2026
Institutional positions in Tetra Tech Inc as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 555
- −32 vs. Q1 2026
- Shares held
- 253.3M
- +10.9M (+4.5%) vs. Q1 2026
- Total value
- $7.32B
- +$6.63M (+0.1%) vs. Q1 2026
- New holders
- 54
- 206 more added
- Sold out
- 86
- 214 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TTEK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 555 | $7.32B |
| Q1 2026 | 593 | $7.35B |
| Q4 2025 | 611 | $8.10B |
| Q3 2025 | 597 | $8.22B |
| Q2 2025 | 590 | $8.94B |
| Q1 2025 | 568 | $7.18B |
| Q4 2024 | 638 | $9.45B |
| Q3 2024 | 646 | $11.2B |
| Q2 2024 | 600 | $9.88B |
| Q1 2024 | 512 | $8.66B |
| Q4 2023 | 510 | $7.87B |
| Q3 2023 | 471 | $7.09B |
| Q2 2023 | 455 | $7.67B |
| Q1 2023 | 445 | $6.81B |
| Q4 2022 | 470 | $6.68B |
| Q3 2022 | 412 | $5.91B |
| Q2 2022 | 415 | $6.31B |
| Q1 2022 | 404 | $7.86B |
| Q4 2021 | 401 | $7.93B |
| Q3 2021 | 359 | $7.08B |
| Q2 2021 | 366 | $5.68B |
| Q1 2021 | 365 | $6.39B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Camden Capital, LLC | 0 | $0 | 0.00% | −9,119−100.0% | Sold out |
| Blueshift Asset Management, LLC | 0 | $0 | 0.00% | −9,028−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −9,025−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −8,951−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −8,716−100.0% | Sold out |
| Sequoia Financial Advisors, LLC | 0 | $0 | 0.00% | −7,723−100.0% | Sold out |
| Crestwood Advisors Group LLC | 0 | $0 | 0.00% | −7,548−100.0% | Sold out |
| Novem Group | 0 | $0 | 0.00% | −7,106−100.0% | Sold out |
| Keebeck Alpha, LP | 0 | $0 | 0.00% | −7,062−100.0% | Sold out |
| EP Wealth Advisors, LLC | 0 | $0 | 0.00% | −6,982−100.0% | Sold out |
| RSM US Wealth Management LLC | 0 | $0 | 0.00% | −6,896−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −730−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −645−100.0% | Sold out |
| Trust Co | 0 | $0 | 0.00% | −626−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −595−100.0% | Sold out |
| Vega Investment Solutions | 0 | $0 | 0.00% | −574−100.0% | Sold out |
| Basecamp Wealth Advisors LLC | 0 | $0 | 0.00% | −313−100.0% | Sold out |
| Atlantic Union Bankshares Corp | 0 | $0 | 0.00% | −264−100.0% | Sold out |
| Brown, Lisle/Cummings, Inc. | 0 | $0 | 0.00% | −190−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Capital & Planning, LLC | 0 | $0 | 0.00% | −170−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −140−100.0% | Sold out |
| Whipplewood Advisors, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| Wealth Enhancement Trust Services, Inc. | 0 | $0 | 0.00% | −85−100.0% | Sold out |
| St Germain D J Co Inc | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Hazlett, Burt & Watson, Inc. | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Lummis Asset Management, LP | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Bell Investment Advisors, Inc | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Signature Equity Partners, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Intentional Wealth Strategies, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Bogart Wealth, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| South State Corp. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Owl Creek Wealth Partners LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| IMA Wealth, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| AdvisorNet Financial, Inc | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Curio Wealth, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| U.S. Capital Wealth Advisors, LLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Skopos Labs, Inc. | – | – | – | – | Not filed |
| Evelyn Partners Investment Management Services Ltd | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |