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 |
|---|---|---|---|---|---|
| Franklin Resources Inc | 67,356 | $2.26M | 0.00% | −3,233−4.6% | Reduced |
| Colony Group, LLC | 67,736 | $2.27M | 0.00% | +48,410+250.5% | Added |
| Wealth Enhancement Advisory Services, LLC | 65,488 | $2.28M | 0.00% | +40,282+159.8% | Added |
| Engineers Gate Manager LP | 68,186 | $2.29M | 0.03% | −4,636−6.4% | Reduced |
| Squarepoint Ops LLC | 68,856 | $2.31M | 0.00% | +49,455+254.9% | Added |
| Penobscot Investment Management Company, Inc. | 68,995 | $2.31M | 0.17% | −46,350−40.2% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 69,265 | $2.32M | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 69,344 | $2.33M | 0.01% | −4,701−6.3% | Reduced |
| Pacer Advisors, Inc. | 69,553 | $2.33M | 0.01% | +9,844+16.5% | Added |
| One Capital Management, LLC | 71,040 | $2.38M | 0.07% | +28,816+68.2% | Added |
| Louisiana State Employees Retirement System | 72,300 | $2.42M | 0.04% | −800−1.1% | Reduced |
| Night Squared LP | 72,833 | $2.44M | 0.69% | +72,833 | New |
| HighTower Advisors, LLC | 75,366 | $2.53M | 0.00% | −11,469−13.2% | Reduced |
| Catalyst Capital Advisors LLC | 75,660 | $2.54M | 0.05% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 75,766 | $2.54M | 0.01% | +57,422+313.0% | Added |
| Zions Bancorporation, National Association | 76,042 | $2.55M | 0.12% | −5,596−6.9% | Reduced |
| HBK Investments L P | 76,400 | $2.56M | 0.03% | +76,400 | New |
| Staley Capital Advisers Inc | 76,835 | $2.58M | 0.11% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 78,524 | $2.63M | 0.00% | −185,334−70.2% | Reduced |
| Teachers Retirement System of the State of Kentucky | 79,425 | $2.66M | 0.02% | 00.0% | Unchanged |
| Comerica Bank | 79,491 | $2.67M | 0.01% | −4,554−5.4% | Reduced |
| Pathstone Holdings, LLC | 80,200 | $2.69M | 0.01% | −15,427−16.1% | Reduced |
| Campbell & CO Investment Adviser LLC | 80,955 | $2.72M | 0.13% | +10,738+15.3% | Added |
| Public Employees Retirement System of Ohio | 81,423 | $2.73M | 0.01% | −2,964−3.5% | Reduced |
| Relyea Zuckerberg Hanson LLC | 82,656 | $2.77M | 0.28% | +130.0% | Added |
| Agf Management Ltd | 84,560 | $2.84M | 0.01% | −4,922−5.5% | Reduced |
| State of New Jersey Common Pension Fund D | 85,427 | $2.87M | 0.01% | −1,702−2.0% | Reduced |
| Zacks Investment Management | 86,892 | $2.91M | 0.02% | −3,911−4.3% | Reduced |
| Yousif Capital Management, LLC | 82,289 | $2.96M | 0.03% | −1,570−1.9% | Reduced |
| Edgestream Partners, L.P. | 88,495 | $2.97M | 0.08% | −47,030−34.7% | Reduced |
| Future Fund LLC | 88,812 | $2.98M | 1.05% | +46,588+110.3% | Added |
| Icon Advisers Inc | 90,000 | $3.02M | 0.65% | −24,000−21.1% | Reduced |
| Intech Investment Management LLC | 90,544 | $3.04M | 0.03% | +37,874+71.9% | Added |
| Union Bancaire Privee, UBP SA | 90,150 | $3.08M | 0.05% | −13,499−13.0% | Reduced |
| Edmond de Rothschild Holding S.A. | 92,153 | $3.09M | 0.04% | +20,986+29.5% | Added |
| Marshall Wace, LLP | 95,054 | $3.19M | 0.00% | +95,054 | New |
| Capital International Inc | 95,457 | $3.20M | 0.03% | +33,536+54.2% | Added |
| Rice Hall James & Associates, LLC | 95,838 | $3.21M | 0.18% | −6,428−6.3% | Reduced |
| First National Bank of Omaha | 97,731 | $3.28M | 0.10% | +6,678+7.3% | Added |
| Mariner, LLC | 98,206 | $3.29M | 0.00% | +71,003+261.0% | Added |
| Asset Management One Co.,Ltd. | 98,096 | $3.35M | 0.01% | −81,900−45.5% | Reduced |
| Stifel Financial Corp | 101,727 | $3.41M | 0.00% | −25,513−20.1% | Reduced |
| Nisa Investment Advisors, LLC | 101,845 | $3.42M | 0.01% | +10.0% | Added |
| SFE Investment Counsel | 102,422 | $3.44M | 0.54% | +20,662+25.3% | Added |
| Alpine Woods Capital Investors, LLC | 102,808 | $3.45M | 0.82% | −28,559−21.7% | Reduced |
| CenterBook Partners LP | 103,774 | $3.48M | 0.17% | −57,407−35.6% | Reduced |
| Trexquant Investment LP | 104,131 | $3.49M | 0.03% | −238,026−69.6% | Reduced |
| Lombard Odier Asset Management (Europe) Ltd | 104,898 | $3.52M | 0.18% | +104,898 | New |
| Kennedy Capital Management, Inc. | 106,597 | $3.58M | 0.08% | +559+0.5% | Added |
| AIA Group Ltd | 108,163 | $3.63M | 0.05% | −814−0.7% | Reduced |
| Mutual of America Capital Management LLC | 108,795 | $3.65M | 0.04% | −12,562−10.4% | Reduced |
| Treasurer of the State of North Carolina | 110,002 | $3.69M | 0.01% | −8,035−6.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 110,396 | $3.70M | 0.03% | −6,765−5.8% | Reduced |
| Isthmus Partners, LLC | 111,637 | $3.74M | 0.42% | +718+0.6% | Added |
| S&T Bank | 112,034 | $3.76M | 1.19% | −22,815−16.9% | Reduced |
| Swiss Life Asset Management Ltd | 115,867 | $3.89M | 0.02% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 103,595 | $3.90M | 0.01% | −4,437−4.1% | Reduced |
| Lazard Asset Management LLC | 116,597 | $3.91M | 0.01% | +23,535+25.3% | Added |
| Amalgamated Bank | 117,904 | $3.96M | 0.03% | −3,481−2.9% | Reduced |
| Blair William & Co | 123,517 | $4.14M | 0.01% | −112,432−47.7% | Reduced |
| Crown Advisors Management, Inc. | 125,000 | $4.19M | 2.76% | 00.0% | Unchanged |
| Duff & Phelps Investment Management Co | 128,648 | $4.31M | 0.05% | −140,568−52.2% | Reduced |
| MetLife Investment Management | 130,105 | $4.36M | 0.02% | −7,260−5.3% | Reduced |
| Advisors Asset Management, Inc. | 132,321 | $4.44M | 0.07% | +12,788+10.7% | Added |
| Capital International Ltd | 133,039 | $4.46M | 0.16% | +20,150+17.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 135,531 | $4.56M | 0.01% | −67,106−33.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 137,700 | $4.62M | 0.10% | +87,136+172.3% | Added |
| River Wealth Advisors LLC | 145,804 | $4.89M | 0.55% | −3,103−2.1% | Reduced |
| Great West Life Assurance Co | 146,839 | $4.92M | 0.01% | −56,306−27.7% | Reduced |
| Kingdon Capital Management, L.L.C. | 150,000 | $5.03M | 0.77% | −25,000−14.3% | Reduced |
| Two Sigma Advisers, LP | 156,400 | $5.25M | 0.01% | +96,900+162.9% | Added |
| Cerity Partners LLC | 160,229 | $5.37M | 0.01% | +108,267+208.4% | Added |
| Moran Wealth Management, LLC | 166,068 | $5.57M | 0.17% | −9,266−5.3% | Reduced |
| Williams Jones Wealth Management, LLC. | 178,060 | $5.97M | 0.07% | −94,367−34.6% | Reduced |
| Raymond James Financial Inc | 178,211 | $5.98M | 0.00% | −1,458−0.8% | Reduced |
| New York State Common Retirement Fund | 179,090 | $6.01M | 0.01% | −551,451−75.5% | Reduced |
| Creative Planning | 187,346 | $6.28M | 0.00% | +54,807+41.4% | Added |
| HRT Financial LP | 189,285 | $6.35M | 0.02% | +66,935+54.7% | Added |
| Manufacturers Life Insurance Company, The | 190,782 | $6.40M | 0.01% | −4,970−2.5% | Reduced |
| PDT Partners, LLC | 193,946 | $6.50M | 0.42% | +163,694+541.1% | Added |
| Twinbeech Capital LP | 200,500 | $6.72M | 0.48% | +200,500 | New |
| Portman Square Capital LLP | 202,824 | $6.80M | 1.18% | +100,499+98.2% | Added |
| Capital International Sarl | 207,233 | $6.95M | 0.11% | +20,201+10.8% | Added |
| State Board of Administration of Florida Retirement System | 208,583 | $7.00M | 0.01% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 221,470 | $7.13M | 0.02% | −277,708−55.6% | Reduced |
| Russell Investments Group, Ltd. | 212,984 | $7.14M | 0.01% | −320,406−60.1% | Reduced |
| Nicholas Company, Inc. | 214,275 | $7.19M | 0.13% | +185+0.1% | Added |
| Dana Investment Advisors, Inc. | 215,562 | $7.23M | 0.21% | −273−0.1% | Reduced |
| Crossmark Global Holdings, Inc. | 216,917 | $7.28M | 0.10% | +88,745+69.2% | Added |
| Ieq Capital, LLC | 216,930 | $7.28M | 0.02% | +141,708+188.4% | Added |
| Citigroup Inc | 222,039 | $7.45M | 0.01% | +114,569+106.6% | Added |
| Candriam Luxembourg S.C.A. | 224,195 | $7.52M | 0.04% | −223,534−49.9% | Reduced |
| Bahl & Gaynor Inc | 227,195 | $7.62M | 0.04% | +4,244+1.9% | Added |
| Verition Fund Management LLC | 227,564 | $7.63M | 0.04% | +73,660+47.9% | Added |
| GHP Investment Advisors, Inc. | 232,354 | $7.79M | 0.32% | +1,763+0.8% | Added |
| California State Teachers Retirement System | 238,074 | $7.99M | 0.01% | −507−0.2% | Reduced |
| New York State Teachers Retirement System | 248,045 | $8.32M | 0.02% | −300−0.1% | Reduced |
| Jane Street Group, LLC | 254,834 | $8.55M | 0.01% | −117,045−31.5% | Reduced |
| SG Americas Securities, LLC | 264,480 | $8.87M | 0.01% | +169,434+178.3% | Added |
| Mirova | 269,697 | $9.05M | 1.30% | +104,417+63.2% | Added |