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 |
|---|---|---|---|---|---|
| Evexia Wealth LLC | 19,497 | $710.3K | 0.20% | +1,092+5.9% | Added |
| Trium Capital LLP | 20,810 | $698.0K | 0.54% | +7,138+52.2% | Added |
| First National Advisers, LLC | 20,675 | $693.4K | 0.10% | −991−4.6% | Reduced |
| US Bancorp | 20,636 | $692.1K | 0.00% | +1,587+8.3% | Added |
| Voya Investment Management LLC | 20,553 | $689.3K | 0.00% | −2,468−10.7% | Reduced |
| Commonwealth Equity Services, LLC | 20,486 | $687.1K | 0.00% | −2,155−9.5% | Reduced |
| Massar Capital Management, LP | 20,218 | $678.1K | 0.13% | +20,218 | New |
| Baird Financial Group, Inc. | 20,099 | $674.1K | 0.00% | −5,245−20.7% | Reduced |
| MML Investors Services, LLC | 19,762 | $662.8K | 0.00% | −6,093−23.6% | Reduced |
| Entropy Technologies, LP | 19,652 | $659.1K | 0.04% | −16,406−45.5% | Reduced |
| Regal Investment Advisors LLC | 19,131 | $641.7K | 0.04% | +19,131 | New |
| Securian Asset Management, Inc | 19,051 | $639.0K | 0.02% | −629−3.2% | Reduced |
| Winton Group Ltd | 18,900 | $633.9K | 0.02% | +18,900 | New |
| Ballentine Partners, LLC | 18,829 | $631.5K | 0.01% | −750−3.8% | Reduced |
| AlphaGrep UK Ltd | 18,802 | $630.6K | 0.21% | +18,802 | New |
| Wiley Bros.-Aintree Capital, LLC | 18,694 | $627.0K | 0.00% | +1,178+6.7% | Added |
| State of Wyoming | 18,457 | $619.0K | 0.07% | +3,115+20.3% | Added |
| Merit Financial Group, LLC | 18,177 | $609.7K | 0.00% | +9,127+100.9% | Added |
| Diametric Capital, LP | 18,070 | $606.1K | 0.16% | +18,070 | New |
| Nwam LLC | 16,510 | $605.6K | 0.03% | +49+0.3% | Added |
| Diversified Trust Co | 17,995 | $603.6K | 0.01% | +7,669+74.3% | Added |
| Great Lakes Advisors, LLC | 17,773 | $596.1K | 0.00% | −2,367−11.8% | Reduced |
| First Pacific Financial | 17,751 | $595.4K | 0.08% | −1,139−6.0% | Reduced |
| Prelude Capital Management, LLC | 17,683 | $593.1K | 0.04% | +17,683 | New |
| American Century Companies Inc | 17,297 | $580.1K | 0.00% | +5,197+43.0% | Added |
| Axq Capital, LP | 17,094 | $573.3K | 0.13% | −13,584−44.3% | Reduced |
| First Business Financial Services, Inc. | 16,820 | $564.1K | 0.05% | −735−4.2% | Reduced |
| Evergreen Capital Management LLC | 16,804 | $563.6K | 0.01% | −1,789−9.6% | Reduced |
| Prudential Financial Inc | 16,545 | $562.0K | 0.00% | −10,525−38.9% | Reduced |
| Sanctuary Advisors, LLC | 16,628 | $557.7K | 0.00% | −3,001−15.3% | Reduced |
| WBI Investments | 16,156 | $541.9K | 0.14% | +1,082+7.2% | Added |
| Patten Group, Inc. | 15,997 | $536.5K | 0.10% | −9,250−36.6% | Reduced |
| Bowen Hanes & Co Inc | 15,975 | $536.0K | 0.01% | −721,450−97.8% | Reduced |
| VestGen Advisors, LLC | 15,879 | $532.6K | 0.02% | −30,450−65.7% | Reduced |
| New Hampshire Trust | 15,765 | $528.8K | 0.10% | 00.0% | Unchanged |
| Midwest Trust Co | 15,765 | $528.8K | 0.01% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 15,560 | $521.9K | 0.01% | +1,382+9.7% | Added |
| Dynamic Advisor Solutions LLC | 15,464 | $518.7K | 0.02% | +4,674+43.3% | Added |
| Compass Wealth Management LLC | 15,125 | $507.3K | 0.13% | 00.0% | Unchanged |
| Ledyard National Bank | 15,068 | $505.4K | 0.04% | −489−3.1% | Reduced |
| Tocqueville Asset Management L.P. | 15,025 | $503.9K | 0.01% | 00.0% | Unchanged |
| Laird Norton Trust Company, LLC | 14,814 | $496.9K | 0.01% | +14,814 | New |
| Cullen Capital Management LLC | 14,433 | $484.1K | 0.01% | −8,008−35.7% | Reduced |
| Tower Research Capital LLC (TRC) | 14,370 | $482.0K | 0.01% | +4,101+39.9% | Added |
| Utah Retirement Systems | 14,116 | $473.5K | 0.00% | 00.0% | Unchanged |
| SWP Financial LLC | 13,925 | $467.0K | 0.23% | −150−1.1% | Reduced |
| Brevan Howard Capital Management LP | 13,924 | $467.0K | 0.01% | −37,195−72.8% | Reduced |
| AdvisorShares Investments LLC | 13,856 | $464.7K | 0.08% | +1,117+8.8% | Added |
| Ensign Peak Advisors, Inc | 13,845 | $464.4K | 0.00% | −25,200−64.5% | Reduced |
| Northwestern Mutual Wealth Management Co | 13,805 | $463.0K | 0.00% | −2,600−15.8% | Reduced |
| ELCO Management Co., LLC | 13,697 | $459.4K | 0.29% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 13,632 | $457.0K | 0.04% | −639−4.5% | Reduced |
| Dover Advisors, LLC | 13,600 | $456.1K | 0.18% | +13,600 | New |
| Buckingham Strategic Partners | 13,575 | $455.3K | 0.01% | +13,575 | New |
| Cynosure Management, LLC | 13,419 | $450.1K | 0.05% | +1,287+10.6% | Added |
| Sterling Capital Management LLC | 12,995 | $435.9K | 0.01% | −296−2.2% | Reduced |
| Abacus Wealth Partners, LLC | 12,933 | $433.8K | 0.04% | +12,933 | New |
| J.W. Cole Advisors, Inc. | 12,870 | $429.3K | 0.01% | −174−1.3% | Reduced |
| Rathbone Brothers plc | 12,581 | $422.0K | 0.00% | +1,512+13.7% | Added |
| Advisor Group Holdings, Inc. | 12,525 | $420.2K | 0.00% | −4,749−27.5% | Reduced |
| Optas, LLC | 12,473 | $418.3K | 0.07% | +6,239+100.1% | Added |
| Maryland State Retirement & Pension System | 12,454 | $417.7K | 0.01% | 00.0% | Unchanged |
| HB Wealth Management, LLC | 12,387 | $415.5K | 0.00% | +2,907+30.7% | Added |
| Holocene Advisors, LP | 12,317 | $413.1K | 0.00% | +2,194+21.7% | Added |
| RWC Asset Management LLP | 12,253 | $411.0K | 0.02% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 12,237 | $410.4K | 0.00% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 12,078 | $405.0K | 0.00% | −1,469−10.8% | Reduced |
| Aureus Asset Management, LLC | 12,065 | $404.7K | 0.03% | 00.0% | Unchanged |
| Trust Point Inc. | 12,037 | $403.7K | 0.03% | +12+0.1% | Added |
| Groupe la Francaise | 12,000 | $402.3K | 0.01% | +500+4.3% | Added |
| Snowden Capital Advisors LLC | 11,891 | $398.8K | 0.01% | −2,346−16.5% | Reduced |
| Define Financial, LLC | 11,715 | $392.9K | 0.22% | −3,615−23.6% | Reduced |
| Kera Capital Partners, Inc. | 10,432 | $392.9K | 0.05% | +10,432 | New |
| Clear Creek Financial Management, LLC | 11,590 | $388.7K | 0.03% | +11,590 | New |
| North Star Asset Management Inc | 11,500 | $385.7K | 0.02% | 00.0% | Unchanged |
| National Bank of Canada | 11,164 | $374.3K | 0.00% | +4,891+78.0% | Added |
| Argent Trust Co | 11,051 | $370.7K | 0.01% | −7,534−40.5% | Reduced |
| Graham Capital Management, L.P. | 10,939 | $366.9K | 0.01% | −4,064−27.1% | Reduced |
| We Are One Seven, LLC | 10,890 | $365.3K | 0.01% | +68+0.6% | Added |
| Sequoia Financial Advisors, LLC | 10,666 | $357.7K | 0.00% | +4,338+68.6% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 10,597 | $355.4K | 0.00% | −15,318−59.1% | Reduced |
| Global Retirement Partners, LLC | 10,537 | $353.4K | 0.01% | +3,073+41.2% | Added |
| Steward Partners Investment Advisory, LLC | 10,523 | $352.9K | 0.00% | −395−3.6% | Reduced |
| Pallas Capital Advisors LLC | 10,518 | $352.8K | 0.01% | +10,518 | New |
| ProShare Advisors LLC | 10,483 | $351.6K | 0.00% | −693−6.2% | Reduced |
| Huntington National Bank | 10,316 | $346.0K | 0.00% | −1,019−9.0% | Reduced |
| Dakota Wealth Management | 10,196 | $342.0K | 0.01% | +10,196 | New |
| Nomura Holdings Inc | 10,185 | $341.6K | 0.00% | +10,185 | New |
| Whalen Wealth Management Inc. | 9,985 | $334.9K | 0.18% | +9,985 | New |
| NewEdge Wealth, LLC | 9,894 | $331.8K | 0.00% | −714−6.7% | Reduced |
| Schonfeld Strategic Advisors LLC | 9,686 | $324.9K | 0.00% | −69,462−87.8% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 9,500 | $318.6K | 0.00% | 00.0% | Unchanged |
| Inceptionr LLC | 9,431 | $316.3K | 0.09% | +9,431 | New |
| Everence Capital Management Inc | 9,380 | $315.0K | 0.02% | 00.0% | Unchanged |
| HighPoint Advisor Group LLC | 9,384 | $314.7K | 0.01% | −4,181−30.8% | Reduced |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 9,354 | $313.7K | 0.01% | +678+7.8% | Added |
| Novem Group | 9,345 | $313.4K | 0.04% | −7,791−45.5% | Reduced |
| North Dakota State Investment Board | 9,285 | $311.4K | 0.01% | +9,285 | New |
| Commerce Bank | 9,191 | $308.3K | 0.00% | −68,074−88.1% | Reduced |
| Modern Wealth Management, LLC | 9,142 | $306.6K | 0.01% | +228+2.6% | Added |