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, Q4 2025
Institutional positions in Tetra Tech Inc as of Dec 31, 2025. 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
- 611
- +26 vs. Q3 2025
- Shares held
- 241.8M
- −4.04M (−1.6%) vs. Q3 2025
- Total value
- $8.10B
- −$102.0M (−1.2%) vs. Q3 2025
- New holders
- 96
- 182 more added
- Sold out
- 70
- 253 more reduced
12 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Geode Capital Management, LLC | 5,082,342 | $170.5M | 0.01% | +52,375+1.0% | Added |
| Amundi | 5,095,797 | $170.9M | 0.05% | −663,884−11.5% | Reduced |
| Sands Capital Management, LLC | 7,007,004 | $235.0M | 0.71% | −172,028−2.4% | Reduced |
| Neuberger Berman Group LLC | 8,351,221 | $280.1M | 0.21% | −676,477−7.5% | Reduced |
| Capital International Investors | 9,016,577 | $302.4M | 0.05% | +1,936,902+27.4% | Added |
| State Street Corp | 9,424,246 | $316.1M | 0.01% | −1,868,482−16.5% | Reduced |
| Pictet Asset Management Holding SA | 11,204,346 | $375.8M | 0.36% | −2,984,899−21.0% | Reduced |
| BlackRock, Inc. | 25,731,629 | $863.0M | 0.01% | +225,612+0.9% | Added |
| Vanguard Group Inc | 25,800,544 | $865.4M | 0.01% | −501,178−1.9% | Reduced |
| DekaBank Deutsche Girozentrale | 279,017 | – | – | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 3,272 | – | – | +1,982+153.6% | Added |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −618,862−100.0% | Sold out |
| TimesSquare Capital Management, LLC | 0 | $0 | 0.00% | −495,020−100.0% | Sold out |
| Kames Capital plc | 0 | $0 | 0.00% | −341,807−100.0% | Sold out |
| Macquarie Group Ltd | 0 | $0 | 0.00% | −280,010−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −268,180−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −186,069−100.0% | Sold out |
| Artemis Investment Management LLP | 0 | $0 | 0.00% | −127,167−100.0% | Sold out |
| Scholtz & Company, LLC | 0 | $0 | 0.00% | −93,235−100.0% | Sold out |
| VELA Investment Management, LLC | 0 | $0 | 0.00% | −80,787−100.0% | Sold out |
| Brasada Capital Management, LP | 0 | $0 | 0.00% | −73,660−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −48,113−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −42,134−100.0% | Sold out |
| Tredje AP-fonden | 0 | $0 | 0.00% | −38,112−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −35,899−100.0% | Sold out |
| Qsemble Capital Management, LP | 0 | $0 | 0.00% | −35,626−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −25,954−100.0% | Sold out |
| Groupama Asset Managment | 0 | $0 | 0.00% | – | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −22,362−100.0% | Sold out |
| Financiere des Professionnels - Fonds d,investissement inc. | 0 | $0 | 0.00% | −22,144−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −21,123−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −20,911−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −20,057−100.0% | Sold out |
| Catalytic Wealth RIA, LLC | 0 | $0 | 0.00% | −18,210−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −17,166−100.0% | Sold out |
| Kovitz Investment Group Partners, LLC | 0 | $0 | 0.00% | −16,039−100.0% | Sold out |
| Perbak Capital Partners LLP | 0 | $0 | 0.00% | −13,752−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −13,374−100.0% | Sold out |
| Pure Financial Advisors, Inc. | 0 | $0 | 0.00% | −12,943−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −11,738−100.0% | Sold out |
| Hilltop Holdings Inc. | 0 | $0 | 0.00% | −11,715−100.0% | Sold out |
| Fieldview Capital Management, LLC | 0 | $0 | 0.00% | −11,516−100.0% | Sold out |
| Wormser Freres Gestion | 0 | $0 | 0.00% | −11,444−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −11,220−100.0% | Sold out |
| Insigneo Advisory Services, LLC | 0 | $0 | 0.00% | −9,303−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −9,211−100.0% | Sold out |
| Resona Asset Management Co.,Ltd. | 0 | $0 | 0.00% | −9,160−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −8,789−100.0% | Sold out |
| Vident Advisory, LLC | 0 | $0 | 0.00% | −8,738−100.0% | Sold out |
| Envestnet Portfolio Solutions, Inc. | 0 | $0 | 0.00% | −8,688−100.0% | Sold out |
| Verdence Capital Advisors LLC | 0 | $0 | 0.00% | −8,514−100.0% | Sold out |
| Banco Santander, S.A. | 0 | $0 | 0.00% | −8,371−100.0% | Sold out |
| Transcend Wealth Collective, LLC | 0 | $0 | 0.00% | −8,291−100.0% | Sold out |
| Oak Ridge Investments LLC | 0 | $0 | 0.00% | −8,215−100.0% | Sold out |
| Journey Strategic Wealth LLC | 0 | $0 | 0.00% | −7,967−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −7,796−100.0% | Sold out |
| Park Avenue Securities LLC | 0 | $0 | 0.00% | −7,574−100.0% | Sold out |
| Vestmark Advisory Solutions, Inc. | 0 | $0 | 0.00% | −7,425−100.0% | Sold out |
| Petrus Trust Company, LTA | 0 | $0 | 0.00% | −7,093−100.0% | Sold out |
| PharVision Advisers, LLC | 0 | $0 | 0.00% | −6,517−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −6,134−100.0% | Sold out |
| Oppenheimer Asset Management Inc. | 0 | $0 | 0.00% | −6,033−100.0% | Sold out |
| Blume Capital Management, Inc. | 0 | $0 | 0.00% | −4,375−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −3,845−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −3,300−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −1,354−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −1,061−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −811−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −661−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −605−100.0% | Sold out |
| Webster Bank, N. A. | 0 | $0 | 0.00% | −290−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| Proffitt & Goodson Inc | 0 | $0 | 0.00% | −105−100.0% | Sold out |
| JPL Wealth Management, LLC | 0 | $0 | 0.00% | −67−100.0% | Sold out |
| Beaird Harris Wealth Management, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Quest 10 Wealth Builders, Inc. | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| Winthrop Capital Management, LLC | 0 | $0 | 0.00% | −44−100.0% | Sold out |
| IMG Wealth Management, Inc. | 0 | $0 | 0.00% | −26−100.0% | Sold out |
| Tortoise Investment Management, LLC | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| North Capital, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Cloud Capital Management, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Thematics Asset Management | – | – | – | – | Not filed |
| Bristlecone Advisors, LLC | – | – | – | – | Not filed |
| Gitterman Wealth Management, LLC | – | – | – | – | Not filed |
| Wetherby Asset Management Inc | – | – | – | – | Not filed |
| Synovus Financial Corp | – | – | – | – | Not filed |
| Glenmede Investment Management, LP | – | – | – | – | Not filed |
| Wolverine Trading, LLC | – | – | – | – | Not filed |
| Abich Financial Wealth Management LLC | – | – | – | – | Not filed |
| Kathleen S. Wright Associates Inc. | – | – | – | – | Not filed |
| Binnacle Investments Inc | – | – | – | – | Not filed |
| Hemington Wealth Management | – | – | – | – | Not filed |
| Pineridge Advisors LLC | – | – | – | – | Not filed |