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, Q3 2025
Institutional positions in Tetra Tech Inc as of Sep 30, 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
- 597
- +14 vs. Q2 2025
- Shares held
- 246.3M
- −56.3K (0.0%) vs. Q2 2025
- Total value
- $8.22B
- −$607.6M (−6.9%) vs. Q2 2025
- New holders
- 74
- 231 more added
- Sold out
- 60
- 202 more reduced
7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alps Advisors Inc | 24,159 | $806.4K | 0.00% | +12,027+99.1% | Added |
| Groupama Asset Managment | – | $814.7K | 0.01% | – | – |
| Capital Group Investment Management Pte. Ltd. | 24,540 | $819.1K | 0.14% | +24,540 | New |
| Patten Group, Inc. | 25,247 | $842.7K | 0.16% | +3,631+16.8% | Added |
| Baird Financial Group, Inc. | 25,344 | $846.0K | 0.00% | −3,200−11.2% | Reduced |
| Equitable Trust Co | 25,756 | $859.7K | 0.04% | +8,858+52.4% | Added |
| Lazard Freres Gestion S.A.S. | 25,830 | $862.0K | 0.02% | 00.0% | Unchanged |
| MML Investors Services, LLC | 25,855 | $863.0K | 0.00% | −2,657−9.3% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 25,206 | $863.3K | 0.00% | +3,507+16.2% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 25,915 | $865.0K | 0.01% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 25,946 | $866.0K | 0.00% | −1,584−5.8% | Reduced |
| Susquehanna International Group, LLP | 25,954 | $866.3K | 0.00% | −34,859−57.3% | Reduced |
| New York Life Investment Management LLC | 26,679 | $890.5K | 0.01% | −1,334−4.8% | Reduced |
| Quadrant Capital Group LLC | 26,850 | $896.3K | 0.03% | +1,820+7.3% | Added |
| Prudential Financial Inc | 27,070 | $903.6K | 0.00% | −665−2.4% | Reduced |
| Mariner, LLC | 27,203 | $908.0K | 0.00% | −16,868−38.3% | Reduced |
| Coldstream Capital Management Inc | 27,348 | $912.9K | 0.01% | +3,272+13.6% | Added |
| Hillsdale Investment Management Inc. | 27,400 | $914.6K | 0.03% | +27,400 | New |
| State of Alaska, Department of Revenue | 28,182 | $940.0K | 0.01% | −1,393−4.7% | Reduced |
| Syon Capital LLC | 29,672 | $990.5K | 0.05% | +8,455+39.9% | Added |
| Gitterman Wealth Management, LLC | 30,211 | $1.01M | 0.23% | +11,754+63.7% | Added |
| PDT Partners, LLC | 30,252 | $1.01M | 0.06% | +30,252 | New |
| Legacy Wealth Asset Management, LLC | 30,270 | $1.01M | 0.25% | −443−1.4% | Reduced |
| D.A. Davidson & Co. | 30,465 | $1.02M | 0.01% | +1,800+6.3% | Added |
| Axq Capital, LP | 30,678 | $1.02M | 0.39% | +3,789+14.1% | Added |
| Ethic Inc. | 31,026 | $1.04M | 0.02% | +996+3.3% | Added |
| Aaron Wealth Advisors | 31,122 | $1.04M | 0.06% | +23,065+286.3% | Added |
| Natixis Advisors, L.P. | 31,751 | $1.06M | 0.00% | −24,936−44.0% | Reduced |
| Triglav Skladi, D.O.O. | 32,090 | $1.07M | 0.07% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 32,329 | $1.08M | 0.00% | +32,329 | New |
| Tributary Capital Management, LLC | 32,747 | $1.09M | 0.10% | −7,210−18.0% | Reduced |
| Hunter Associates Investment Management LLC | 32,495 | $1.09M | 0.15% | −880−2.6% | Reduced |
| Whittier Trust Co | 32,915 | $1.11M | 0.01% | 00.0% | Unchanged |
| JustInvest LLC | 33,331 | $1.11M | 0.01% | +27+0.1% | Added |
| Vancity Investment Management Ltd | 34,211 | $1.14M | 0.15% | +1,534+4.7% | Added |
| Bleakley Financial Group, LLC | 34,455 | $1.15M | 0.03% | −1,889−5.2% | Reduced |
| O'Shaughnessy Asset Management, LLC | 34,813 | $1.16M | 0.01% | +1,446+4.3% | Added |
| Fox Run Management, L.L.C. | 34,948 | $1.17M | 0.18% | +5,924+20.4% | Added |
| Qsemble Capital Management, LP | 35,626 | $1.19M | 0.12% | +35,626 | New |
| Oak Thistle LLC | 35,899 | $1.20M | 0.18% | +2,931+8.9% | Added |
| Entropy Technologies, LP | 36,058 | $1.20M | 0.09% | +36,058 | New |
| Davy Global Fund Management Ltd | 36,739 | $1.23M | 0.08% | +9,411+34.4% | Added |
| Tredje AP-fonden | 38,112 | $1.27M | 0.01% | +5,432+16.6% | Added |
| Inscription Capital, LLC | 38,643 | $1.29M | 0.14% | +24,556+174.3% | Added |
| Xponance, Inc. | 38,992 | $1.30M | 0.01% | −2,294−5.6% | Reduced |
| Bailard, Inc. | 39,000 | $1.30M | 0.03% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 39,045 | $1.30M | 0.00% | −37,550−49.0% | Reduced |
| Formula Growth Ltd | 39,050 | $1.30M | 0.46% | 00.0% | Unchanged |
| Victory Capital Management Inc | 39,579 | $1.32M | 0.00% | −4,435−10.1% | Reduced |
| Oddo BHF Asset Management SAS | 40,071 | $1.34M | 0.05% | −39,869−49.9% | Reduced |
| Farringdon Capital, Ltd. | 42,134 | $1.41M | 0.36% | +42,134 | New |
| One Capital Management, LLC | 42,224 | $1.41M | 0.04% | +15,707+59.2% | Added |
| Future Fund LLC | 42,224 | $1.41M | 0.50% | +15,707+59.2% | Added |
| Quantbot Technologies LP | 42,786 | $1.43M | 0.04% | +38,767+964.6% | Added |
| Radnor Capital Management, LLC | 45,620 | $1.52M | 0.23% | +11,700+34.5% | Added |
| VestGen Advisors, LLC | 46,329 | $1.55M | 0.05% | −1,447−3.0% | Reduced |
| Nordea Investment Management AB | 47,558 | $1.59M | 0.00% | 00.0% | Unchanged |
| Atria Investments LLC | 47,508 | $1.59M | 0.02% | +17,911+60.5% | Added |
| Terra Alpha Investments LLC | 47,958 | $1.60M | 1.63% | −462−1.0% | Reduced |
| Dynamic Technology Lab Private Ltd | 48,113 | $1.61M | 0.27% | +48,113 | New |
| Worldquant Millennium Advisors LLC | 49,944 | $1.67M | 0.01% | +49,944 | New |
| CAPROCK Group, Inc. | 46,156 | $1.68M | 0.04% | +46,156 | New |
| Y-Intercept (Hong Kong) Ltd | 50,564 | $1.69M | 0.04% | +32,480+179.6% | Added |
| Captrust Financial Advisors | 50,744 | $1.69M | 0.00% | +1,903+3.9% | Added |
| Brevan Howard Capital Management LP | 51,119 | $1.71M | 0.02% | +13,848+37.2% | Added |
| Brinker Capital Investments, LLC | 51,484 | $1.72M | 0.01% | +1,737+3.5% | Added |
| Cerity Partners LLC | 51,962 | $1.73M | 0.00% | −3,188−5.8% | Reduced |
| KLP Kapitalforvaltning AS | 52,500 | $1.75M | 0.01% | −1,300−2.4% | Reduced |
| Intech Investment Management LLC | 52,670 | $1.76M | 0.02% | +16,135+44.2% | Added |
| Oregon Public Employees Retirement Fund | 52,925 | $1.77M | 0.02% | −700−1.3% | Reduced |
| South Dakota Investment Council | 54,270 | $1.81M | 0.04% | −50,500−48.2% | Reduced |
| New Mexico Educational Retirement Board | 54,500 | $1.82M | 0.06% | 00.0% | Unchanged |
| Bristlecone Advisors, LLC | 54,506 | $1.82M | 0.15% | −7,907−12.7% | Reduced |
| New Age Alpha Advisors, LLC | 56,028 | $1.87M | 0.08% | −1,520−2.6% | Reduced |
| Bank of Montreal | 56,080 | $1.87M | 0.00% | +13,043+30.3% | Added |
| Northwestern Mutual Investment Management Company, LLC | 58,571 | $1.96M | 0.03% | −262−0.4% | Reduced |
| Two Sigma Advisers, LP | 59,500 | $1.99M | 0.00% | +59,500 | New |
| Pacer Advisors, Inc. | 59,709 | $1.99M | 0.01% | +59,709 | New |
| Thrivent Financial for Lutherans | 60,842 | $2.03M | 0.00% | −1,672−2.7% | Reduced |
| Capital International Inc | 61,921 | $2.07M | 0.02% | +61,921 | New |
| Federated Hermes, Inc. | 61,956 | $2.07M | 0.00% | −150,603−70.9% | Reduced |
| Exchange Traded Concepts, LLC | 62,378 | $2.08M | 0.02% | −9,919−13.7% | Reduced |
| State of Michigan Retirement System | 62,540 | $2.09M | 0.01% | −800−1.3% | Reduced |
| Tudor Investment Corp Et Al | 64,401 | $2.15M | 0.01% | +64,401 | New |
| Teacher Retirement System of Texas | 65,549 | $2.19M | 0.01% | −2,995−4.4% | Reduced |
| XTX Topco Ltd | 67,042 | $2.24M | 0.12% | +14,176+26.8% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 67,440 | $2.25M | 0.01% | −262−0.4% | Reduced |
| Cetera Investment Advisers | 68,633 | $2.29M | 0.00% | +16,099+30.6% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 69,265 | $2.31M | 0.00% | +20,000+40.6% | Added |
| Ameritas Investment Partners, Inc. | 69,947 | $2.33M | 0.07% | −3,715−5.0% | Reduced |
| Campbell & CO Investment Adviser LLC | 70,217 | $2.34M | 0.18% | +70,217 | New |
| Franklin Resources Inc | 70,589 | $2.36M | 0.00% | +35,972+103.9% | Added |
| Summit Trail Advisors, LLC | 71,029 | $2.37M | 0.03% | +28,871+68.5% | Added |
| Edmond de Rothschild Holding S.A. | 71,167 | $2.38M | 0.04% | +33,120+87.1% | Added |
| Northwest & Ethical Investments L.P. | 72,757 | $2.43M | 0.06% | +2,812+4.0% | Added |
| Engineers Gate Manager LP | 72,822 | $2.43M | 0.03% | −4,651−6.0% | Reduced |
| Louisiana State Employees Retirement System | 73,100 | $2.44M | 0.04% | −1,000−1.3% | Reduced |
| Arizona State Retirement System | 74,045 | $2.47M | 0.01% | −230−0.3% | Reduced |
| Brasada Capital Management, LP | 73,660 | $2.48M | 0.42% | +671+0.9% | Added |
| Ieq Capital, LLC | 75,222 | $2.51M | 0.01% | +75,222 | New |