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 |
|---|---|---|---|---|---|
| Perpetual Ltd | 323,654 | $10.9M | 0.16% | +22,463+7.5% | Added |
| Toroso Investments, LLC | 323,346 | $10.8M | 0.05% | +1,313+0.4% | Added |
| State of Wisconsin Investment Board | 315,833 | $10.6M | 0.02% | +1,419+0.5% | Added |
| Nomura Asset Management International Inc. | 314,295 | $10.5M | 0.02% | +314,295 | New |
| Skandinaviska Enskilda Banken AB (publ) | 306,113 | $10.3M | 0.04% | +37,089+13.8% | Added |
| Renaissance Investment Group LLC | 292,148 | $9.80M | 1.97% | −942−0.3% | Reduced |
| Bank of Montreal | 288,108 | $9.66M | 0.00% | +232,028+413.7% | Added |
| Systematic Financial Management LP | 286,772 | $9.62M | 0.23% | +103,582+56.5% | Added |
| SEI Investments Co | 272,525 | $9.14M | 0.01% | −196,468−41.9% | Reduced |
| Mirova | 269,697 | $9.05M | 1.30% | +104,417+63.2% | Added |
| SG Americas Securities, LLC | 264,480 | $8.87M | 0.01% | +169,434+178.3% | Added |
| Jane Street Group, LLC | 254,834 | $8.55M | 0.01% | −117,045−31.5% | Reduced |
| New York State Teachers Retirement System | 248,045 | $8.32M | 0.02% | −300−0.1% | Reduced |
| California State Teachers Retirement System | 238,074 | $7.99M | 0.01% | −507−0.2% | Reduced |
| GHP Investment Advisors, Inc. | 232,354 | $7.79M | 0.32% | +1,763+0.8% | Added |
| Verition Fund Management LLC | 227,564 | $7.63M | 0.04% | +73,660+47.9% | Added |
| Bahl & Gaynor Inc | 227,195 | $7.62M | 0.04% | +4,244+1.9% | Added |
| Candriam Luxembourg S.C.A. | 224,195 | $7.52M | 0.04% | −223,534−49.9% | Reduced |
| Citigroup Inc | 222,039 | $7.45M | 0.01% | +114,569+106.6% | Added |
| Ieq Capital, LLC | 216,930 | $7.28M | 0.02% | +141,708+188.4% | Added |
| Crossmark Global Holdings, Inc. | 216,917 | $7.28M | 0.10% | +88,745+69.2% | Added |
| Dana Investment Advisors, Inc. | 215,562 | $7.23M | 0.21% | −273−0.1% | Reduced |
| Nicholas Company, Inc. | 214,275 | $7.19M | 0.13% | +185+0.1% | Added |
| Russell Investments Group, Ltd. | 212,984 | $7.14M | 0.01% | −320,406−60.1% | Reduced |
| Los Angeles Capital Management LLC | 221,470 | $7.13M | 0.02% | −277,708−55.6% | Reduced |
| State Board of Administration of Florida Retirement System | 208,583 | $7.00M | 0.01% | 00.0% | Unchanged |
| Capital International Sarl | 207,233 | $6.95M | 0.11% | +20,201+10.8% | Added |
| Portman Square Capital LLP | 202,824 | $6.80M | 1.18% | +100,499+98.2% | Added |
| Twinbeech Capital LP | 200,500 | $6.72M | 0.48% | +200,500 | New |
| PDT Partners, LLC | 193,946 | $6.50M | 0.42% | +163,694+541.1% | Added |
| Manufacturers Life Insurance Company, The | 190,782 | $6.40M | 0.01% | −4,970−2.5% | Reduced |
| HRT Financial LP | 189,285 | $6.35M | 0.02% | +66,935+54.7% | Added |
| Creative Planning | 187,346 | $6.28M | 0.00% | +54,807+41.4% | Added |
| New York State Common Retirement Fund | 179,090 | $6.01M | 0.01% | −551,451−75.5% | Reduced |
| Raymond James Financial Inc | 178,211 | $5.98M | 0.00% | −1,458−0.8% | Reduced |
| Williams Jones Wealth Management, LLC. | 178,060 | $5.97M | 0.07% | −94,367−34.6% | Reduced |
| Moran Wealth Management, LLC | 166,068 | $5.57M | 0.17% | −9,266−5.3% | Reduced |
| Cerity Partners LLC | 160,229 | $5.37M | 0.01% | +108,267+208.4% | Added |
| Two Sigma Advisers, LP | 156,400 | $5.25M | 0.01% | +96,900+162.9% | Added |
| Kingdon Capital Management, L.L.C. | 150,000 | $5.03M | 0.77% | −25,000−14.3% | Reduced |
| Great West Life Assurance Co | 146,839 | $4.92M | 0.01% | −56,306−27.7% | Reduced |
| River Wealth Advisors LLC | 145,804 | $4.89M | 0.55% | −3,103−2.1% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 137,700 | $4.62M | 0.10% | +87,136+172.3% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 135,531 | $4.56M | 0.01% | −67,106−33.1% | Reduced |
| Capital International Ltd | 133,039 | $4.46M | 0.16% | +20,150+17.8% | Added |
| Advisors Asset Management, Inc. | 132,321 | $4.44M | 0.07% | +12,788+10.7% | Added |
| MetLife Investment Management | 130,105 | $4.36M | 0.02% | −7,260−5.3% | Reduced |
| Duff & Phelps Investment Management Co | 128,648 | $4.31M | 0.05% | −140,568−52.2% | Reduced |
| Crown Advisors Management, Inc. | 125,000 | $4.19M | 2.76% | 00.0% | Unchanged |
| Blair William & Co | 123,517 | $4.14M | 0.01% | −112,432−47.7% | Reduced |
| Amalgamated Bank | 117,904 | $3.96M | 0.03% | −3,481−2.9% | Reduced |
| Lazard Asset Management LLC | 116,597 | $3.91M | 0.01% | +23,535+25.3% | Added |
| State of Tennessee, Treasury Department | 103,595 | $3.90M | 0.01% | −4,437−4.1% | Reduced |
| Swiss Life Asset Management Ltd | 115,867 | $3.89M | 0.02% | 00.0% | Unchanged |
| S&T Bank | 112,034 | $3.76M | 1.19% | −22,815−16.9% | Reduced |
| Isthmus Partners, LLC | 111,637 | $3.74M | 0.42% | +718+0.6% | Added |
| Police & Firemen's Retirement System of New Jersey | 110,396 | $3.70M | 0.03% | −6,765−5.8% | Reduced |
| Treasurer of the State of North Carolina | 110,002 | $3.69M | 0.01% | −8,035−6.8% | Reduced |
| Mutual of America Capital Management LLC | 108,795 | $3.65M | 0.04% | −12,562−10.4% | Reduced |
| AIA Group Ltd | 108,163 | $3.63M | 0.05% | −814−0.7% | Reduced |
| Kennedy Capital Management, Inc. | 106,597 | $3.58M | 0.08% | +559+0.5% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 104,898 | $3.52M | 0.18% | +104,898 | New |
| Trexquant Investment LP | 104,131 | $3.49M | 0.03% | −238,026−69.6% | Reduced |
| CenterBook Partners LP | 103,774 | $3.48M | 0.17% | −57,407−35.6% | Reduced |
| Alpine Woods Capital Investors, LLC | 102,808 | $3.45M | 0.82% | −28,559−21.7% | Reduced |
| SFE Investment Counsel | 102,422 | $3.44M | 0.54% | +20,662+25.3% | Added |
| Nisa Investment Advisors, LLC | 101,845 | $3.42M | 0.01% | +10.0% | Added |
| Stifel Financial Corp | 101,727 | $3.41M | 0.00% | −25,513−20.1% | Reduced |
| Asset Management One Co.,Ltd. | 98,096 | $3.35M | 0.01% | −81,900−45.5% | Reduced |
| Mariner, LLC | 98,206 | $3.29M | 0.00% | +71,003+261.0% | Added |
| First National Bank of Omaha | 97,731 | $3.28M | 0.10% | +6,678+7.3% | Added |
| Rice Hall James & Associates, LLC | 95,838 | $3.21M | 0.18% | −6,428−6.3% | Reduced |
| Capital International Inc | 95,457 | $3.20M | 0.03% | +33,536+54.2% | Added |
| Marshall Wace, LLP | 95,054 | $3.19M | 0.00% | +95,054 | New |
| Edmond de Rothschild Holding S.A. | 92,153 | $3.09M | 0.04% | +20,986+29.5% | Added |
| Union Bancaire Privee, UBP SA | 90,150 | $3.08M | 0.05% | −13,499−13.0% | Reduced |
| Intech Investment Management LLC | 90,544 | $3.04M | 0.03% | +37,874+71.9% | Added |
| Icon Advisers Inc | 90,000 | $3.02M | 0.65% | −24,000−21.1% | Reduced |
| Future Fund LLC | 88,812 | $2.98M | 1.05% | +46,588+110.3% | Added |
| Edgestream Partners, L.P. | 88,495 | $2.97M | 0.08% | −47,030−34.7% | Reduced |
| Yousif Capital Management, LLC | 82,289 | $2.96M | 0.03% | −1,570−1.9% | Reduced |
| Zacks Investment Management | 86,892 | $2.91M | 0.02% | −3,911−4.3% | Reduced |
| State of New Jersey Common Pension Fund D | 85,427 | $2.87M | 0.01% | −1,702−2.0% | Reduced |
| Agf Management Ltd | 84,560 | $2.84M | 0.01% | −4,922−5.5% | Reduced |
| Relyea Zuckerberg Hanson LLC | 82,656 | $2.77M | 0.28% | +130.0% | Added |
| Public Employees Retirement System of Ohio | 81,423 | $2.73M | 0.01% | −2,964−3.5% | Reduced |
| Campbell & CO Investment Adviser LLC | 80,955 | $2.72M | 0.13% | +10,738+15.3% | Added |
| Pathstone Holdings, LLC | 80,200 | $2.69M | 0.01% | −15,427−16.1% | Reduced |
| Comerica Bank | 79,491 | $2.67M | 0.01% | −4,554−5.4% | Reduced |
| Teachers Retirement System of the State of Kentucky | 79,425 | $2.66M | 0.02% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 78,524 | $2.63M | 0.00% | −185,334−70.2% | Reduced |
| Staley Capital Advisers Inc | 76,835 | $2.58M | 0.11% | 00.0% | Unchanged |
| HBK Investments L P | 76,400 | $2.56M | 0.03% | +76,400 | New |
| Zions Bancorporation, National Association | 76,042 | $2.55M | 0.12% | −5,596−6.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 75,766 | $2.54M | 0.01% | +57,422+313.0% | Added |
| Catalyst Capital Advisors LLC | 75,660 | $2.54M | 0.05% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 75,366 | $2.53M | 0.00% | −11,469−13.2% | Reduced |
| Night Squared LP | 72,833 | $2.44M | 0.69% | +72,833 | New |
| Louisiana State Employees Retirement System | 72,300 | $2.42M | 0.04% | −800−1.1% | Reduced |
| One Capital Management, LLC | 71,040 | $2.38M | 0.07% | +28,816+68.2% | Added |