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, Q2 2026
Institutional positions in Tetra Tech Inc as of Jun 30, 2026. 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
- 555
- −32 vs. Q1 2026
- Shares held
- 253.3M
- +10.9M (+4.5%) vs. Q1 2026
- Total value
- $7.32B
- +$6.63M (+0.1%) vs. Q1 2026
- New holders
- 54
- 206 more added
- Sold out
- 86
- 214 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Prudential Financial Inc | 305,545 | $8.83M | 0.01% | +141,325+86.1% | Added |
| Nomura Asset Management International Inc. | 301,601 | $8.71M | 0.01% | −9,790−3.1% | Reduced |
| Renaissance Investment Group LLC | 293,841 | $8.49M | 1.67% | −1,176−0.4% | Reduced |
| California State Teachers Retirement System | 289,716 | $8.37M | 0.01% | −781−0.3% | Reduced |
| DekaBank Deutsche Girozentrale | 279,017 | $8.27M | 0.01% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 279,367 | $8.07M | 0.02% | −19,538−6.5% | Reduced |
| Man Group plc | 279,108 | $8.06M | 0.01% | +61,563+28.3% | Added |
| Public Sector Pension Investment Board | 277,517 | $8.02M | 0.02% | +142,629+105.7% | Added |
| Foresight Group Ltd Liability Partnership | 269,580 | $7.68M | 1.38% | +269,580 | New |
| New York State Teachers Retirement System | 263,019 | $7.60M | 0.01% | −1,648−0.6% | Reduced |
| Candriam Luxembourg S.C.A. | 251,587 | $7.26M | 0.03% | −7,778−3.0% | Reduced |
| SEI Investments Co | 249,271 | $7.20M | 0.01% | −66,013−20.9% | Reduced |
| Bank of Montreal | 235,638 | $6.81M | 0.00% | −16,640−6.6% | Reduced |
| Jupiter Topco LLC | 231,029 | $6.67M | 0.00% | +231,029 | New |
| Rockefeller Capital Management L.P. | 223,673 | $6.46M | 0.01% | −402,860−64.3% | Reduced |
| Citigroup Inc | 221,604 | $6.40M | 0.00% | +167,998+313.4% | Added |
| Capital International Sarl | 221,429 | $6.40M | 0.09% | +9,952+4.7% | Added |
| GHP Investment Advisors, Inc. | 216,113 | $6.24M | 0.23% | −10,326−4.6% | Reduced |
| Dana Investment Advisors, Inc. | 211,613 | $6.11M | 0.16% | −3,467−1.6% | Reduced |
| State Board of Administration of Florida Retirement System | 204,583 | $5.91M | 0.01% | −4,000−1.9% | Reduced |
| Nicholas Company, Inc. | 204,390 | $5.90M | 0.11% | +850.0% | Added |
| Vanguard Asset Management, Ltd | 202,270 | $5.84M | 0.00% | +12,323+6.5% | Added |
| AlpenGlobal Capital LLC | 103,668 | $5.73M | 3.67% | −3,647−3.4% | Reduced |
| Advisors Asset Management, Inc. | 193,625 | $5.59M | 0.09% | +49,446+34.3% | Added |
| Duff & Phelps Investment Management Co | 193,486 | $5.59M | 0.05% | −17,552−8.3% | Reduced |
| Raymond James Financial Inc | 190,245 | $5.50M | 0.00% | +12,378+7.0% | Added |
| Manufacturers Life Insurance Company, The | 187,838 | $5.43M | 0.00% | +1,575+0.8% | Added |
| Y-Intercept (Hong Kong) Ltd | 184,885 | $5.34M | 0.11% | −59,607−24.4% | Reduced |
| SFE Investment Counsel | 176,857 | $5.11M | 0.70% | +29,426+20.0% | Added |
| New York State Common Retirement Fund | 170,257 | $4.92M | 0.01% | −15,800−8.5% | Reduced |
| Holocene Advisors, LP | 162,164 | $4.68M | 0.01% | +162,164 | New |
| Voya Investment Management LLC | 162,155 | $4.68M | 0.00% | +103,415+176.1% | Added |
| Blair William & Co | 157,326 | $4.55M | 0.01% | −1,116−0.7% | Reduced |
| Bahl & Gaynor Inc | 154,884 | $4.47M | 0.02% | −106,073−40.6% | Reduced |
| Two Sigma Investments, LP | 154,365 | $4.46M | 0.00% | −29,400−16.0% | Reduced |
| Rock Point Advisors, LLC | 151,137 | $4.37M | 1.07% | +32,086+27.0% | Added |
| Great West Life Assurance Co | 147,472 | $4.26M | 0.01% | −3,263−2.2% | Reduced |
| Future Fund LLC | 143,967 | $4.16M | 1.19% | +6,620+4.8% | Added |
| Bleakley Financial Group, LLC | 143,737 | $4.15M | 0.05% | −4,201−2.8% | Reduced |
| Creative Planning | 140,335 | $4.05M | 0.00% | −11,288−7.4% | Reduced |
| Russell Investments Group, Ltd. | 139,498 | $4.03M | 0.00% | −190,447−57.7% | Reduced |
| Treasurer of the State of North Carolina | 139,189 | $4.02M | 0.01% | +27,944+25.1% | Added |
| Crossmark Global Holdings, Inc. | 135,317 | $3.91M | 0.05% | −17,067−11.2% | Reduced |
| Susquehanna International Group, LLP | 135,137 | $3.90M | 0.00% | −25,099−15.7% | Reduced |
| Virginia Retirement Systems Et Al | 134,670 | $3.89M | 0.02% | +93,800+229.5% | Added |
| Capital International Ltd | 133,039 | $3.84M | 0.13% | 00.0% | Unchanged |
| Crown Advisors Management, Inc. | 125,000 | $3.61M | 1.98% | 00.0% | Unchanged |
| MetLife Investment Management | 124,960 | $3.61M | 0.02% | −5,501−4.2% | Reduced |
| Rice Hall James & Associates, LLC | 122,112 | $3.53M | 0.17% | −843−0.7% | Reduced |
| Amalgamated Bank | 116,898 | $3.38M | 0.02% | −1,886−1.6% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 116,707 | $3.37M | 0.03% | +7,413+6.8% | Added |
| Louisbourg Investments Inc. | 147,261 | $3.36M | 0.62% | +27,291+22.7% | Added |
| River Wealth Advisors LLC | 116,271 | $3.36M | 0.35% | −16,989−12.7% | Reduced |
| Portman Square Capital LLP | 113,409 | $3.28M | 0.56% | −30,652−21.3% | Reduced |
| Edmond de Rothschild Holding S.A. | 107,892 | $3.12M | 0.04% | +7,567+7.5% | Added |
| Nordea Investment Management AB | 110,444 | $3.11M | 0.00% | +51,938+88.8% | Added |
| State of Tennessee, Treasury Department | 107,318 | $3.10M | 0.01% | −1,932−1.8% | Reduced |
| Swiss Life Asset Management Ltd | 106,155 | $3.07M | 0.01% | +12,257+13.1% | Added |
| Nisa Investment Advisors, LLC | 104,658 | $3.02M | 0.01% | +2,574+2.5% | Added |
| Elo Mutual Pension Insurance Co | 104,276 | $3.01M | 0.04% | +90,305+646.4% | Added |
| Catalyst Capital Advisors LLC | 102,700 | $2.97M | 0.05% | +27,040+35.7% | Added |
| Bessemer Group Inc | 102,072 | $2.95M | 0.00% | −1,329,933−92.9% | Reduced |
| Isthmus Partners, LLC | 102,063 | $2.95M | 0.29% | +3,187+3.2% | Added |
| LPL Financial LLC | 101,849 | $2.94M | 0.00% | −50,320−33.1% | Reduced |
| Freestone Grove Partners LP | 101,174 | $2.92M | 0.02% | +49,821+97.0% | Added |
| Vanguard Global Advisers, LLC | 99,596 | $2.88M | 0.00% | −5,177−4.9% | Reduced |
| Zacks Investment Management | 99,407 | $2.87M | 0.02% | +2,650+2.7% | Added |
| Kennedy Capital Management, Inc. | 96,888 | $2.80M | 0.05% | −8,400−8.0% | Reduced |
| Union Bancaire Privee, UBP SA | 96,674 | $2.79M | 0.04% | +6,330+7.0% | Added |
| Mutual of America Capital Management LLC | 96,347 | $2.78M | 0.03% | −3,601−3.6% | Reduced |
| Los Angeles Capital Management LLC | 96,085 | $2.78M | 0.01% | 00.0% | Unchanged |
| One Capital Management, LLC | 91,196 | $2.75M | 0.08% | 00.0% | Unchanged |
| First National Bank of Omaha | 93,472 | $2.70M | 0.08% | −22,121−19.1% | Reduced |
| Cerity Partners LLC | 91,882 | $2.65M | 0.00% | +31,787+52.9% | Added |
| Montanaro Asset Management Ltd | 91,800 | $2.65M | 0.84% | +20,300+28.4% | Added |
| KLP Kapitalforvaltning AS | 88,800 | $2.57M | 0.01% | +24,600+38.3% | Added |
| HBK Investments L P | 87,923 | $2.54M | 0.03% | −151,105−63.2% | Reduced |
| Asset Management One Co.,Ltd. | 87,111 | $2.52M | 0.01% | −23,870−21.5% | Reduced |
| Federation des caisses Desjardins du Quebec | 86,962 | $2.51M | 0.01% | +10,121+13.2% | Added |
| State of New Jersey Common Pension Fund D | 85,427 | $2.47M | 0.01% | 00.0% | Unchanged |
| La Banque Postale Asset Management SA | 80,891 | $2.34M | 0.02% | −93,280−53.6% | Reduced |
| Boothbay Fund Management, LLC | 80,359 | $2.32M | 0.04% | +10,164+14.5% | Added |
| Teachers Retirement System of the State of Kentucky | 79,425 | $2.29M | 0.02% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 77,104 | $2.23M | 0.00% | +14,981+24.1% | Added |
| Public Employees Retirement System of Ohio | 77,042 | $2.23M | 0.01% | −1,079−1.4% | Reduced |
| Scholtz & Company, LLC | 76,885 | $2.22M | 1.11% | −26,310−25.5% | Reduced |
| Staley Capital Advisers Inc | 76,000 | $2.20M | 0.09% | −835−1.1% | Reduced |
| Louisiana State Employees Retirement System | 75,900 | $2.19M | 0.03% | +300+0.4% | Added |
| Moran Wealth Management, LLC | 74,939 | $2.16M | 0.06% | −9,206−10.9% | Reduced |
| Brinker Capital Investments, LLC | 74,465 | $2.15M | 0.02% | +43,327+139.1% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 74,326 | $2.15M | 0.00% | −7,633−9.3% | Reduced |
| Mercer Global Advisors Inc | 73,058 | $2.11M | 0.00% | +2,500+3.5% | Added |
| S&T Bank | 72,871 | $2.11M | 0.63% | −9,611−11.7% | Reduced |
| Yousif Capital Management, LLC | 72,832 | $2.10M | 0.02% | −5,133−6.6% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 67,456 | $2.09M | 0.00% | +27,814+70.2% | Added |
| Relyea Zuckerberg Hanson LLC | 70,474 | $2.04M | 0.17% | +60.0% | Added |
| HighTower Advisors, LLC | 69,347 | $2.00M | 0.00% | −3,137−4.3% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 69,265 | $2.00M | 0.00% | 00.0% | Unchanged |
| Toroso Investments, LLC | 68,865 | $1.99M | 0.00% | −315,421−82.1% | Reduced |
| Daiwa Securities Group Inc. | 68,500 | $1.98M | 0.00% | +11,700+20.6% | Added |