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 |
|---|---|---|---|---|---|
| SEI Investments Co | 272,525 | $9.14M | 0.01% | −196,468−41.9% | Reduced |
| Systematic Financial Management LP | 286,772 | $9.62M | 0.23% | +103,582+56.5% | Added |
| Bank of Montreal | 288,108 | $9.66M | 0.00% | +232,028+413.7% | Added |
| Renaissance Investment Group LLC | 292,148 | $9.80M | 1.97% | −942−0.3% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 306,113 | $10.3M | 0.04% | +37,089+13.8% | Added |
| Nomura Asset Management International Inc. | 314,295 | $10.5M | 0.02% | +314,295 | New |
| State of Wisconsin Investment Board | 315,833 | $10.6M | 0.02% | +1,419+0.5% | Added |
| Toroso Investments, LLC | 323,346 | $10.8M | 0.05% | +1,313+0.4% | Added |
| Perpetual Ltd | 323,654 | $10.9M | 0.16% | +22,463+7.5% | Added |
| Van Eck Associates Corp | 331,355 | $11.1M | 0.01% | +10,402+3.2% | Added |
| Mackenzie Financial Corp | 331,969 | $11.3M | 0.01% | −20,398−5.8% | Reduced |
| Osprey Private Wealth LLC | 344,025 | $11.5M | 3.32% | +38,550+12.6% | Added |
| LPL Financial LLC | 346,019 | $11.6M | 0.00% | −150,798−30.4% | Reduced |
| FMR LLC | 353,230 | $11.8M | 0.00% | +13,892+4.1% | Added |
| Nicola Wealth Management Ltd. | 365,000 | $12.2M | 1.11% | +365,000 | New |
| Man Group plc | 379,293 | $12.7M | 0.02% | +358,066+1,686.8% | Added |
| Legal & General Group Plc | 383,220 | $12.9M | 0.00% | −39,979−9.4% | Reduced |
| Trillium Asset Management, LLC | 391,329 | $13.3M | 0.41% | −27,392−6.5% | Reduced |
| Voloridge Investment Management, LLC | 397,500 | $13.3M | 0.05% | +365,171+1,129.5% | Added |
| Barclays PLC | 407,498 | $13.7M | 0.01% | +5,638+1.4% | Added |
| Sarasin & Partners LLP | 411,062 | $13.8M | 0.14% | +1,339+0.3% | Added |
| Price T Rowe Associates Inc | 413,523 | $13.9M | 0.00% | +18,676+4.7% | Added |
| Ninety One North America, Inc. | 415,535 | $13.9M | 0.56% | +11,440+2.8% | Added |
| Erste Asset Management GmbH | 418,010 | $14.3M | 0.12% | +250,310+149.3% | Added |
| Baillie Gifford & Co | 428,775 | $14.4M | 0.01% | −94,375−18.0% | Reduced |
| Algert Global LLC | 439,534 | $14.7M | 0.23% | +127,145+40.7% | Added |
| Winslow Asset Management Inc | 441,600 | $14.8M | 2.73% | −1,101−0.2% | Reduced |
| Gotham Asset Management, LLC | 453,470 | $15.2M | 0.06% | −33,399−6.9% | Reduced |
| one8zero8, LLC | 460,446 | $15.4M | 3.37% | −7,300−1.6% | Reduced |
| Ci Investments Inc. | 467,127 | $15.7M | 0.07% | −7,362−1.6% | Reduced |
| Retirement Systems of Alabama | 473,610 | $15.9M | 0.05% | −3,965−0.8% | Reduced |
| Swiss National Bank | 492,300 | $16.5M | 0.01% | +6,900+1.4% | Added |
| Renaissance Technologies LLC | 508,700 | $17.1M | 0.03% | +1,000+0.2% | Added |
| Handelsbanken Fonder AB | 516,043 | $17.3M | 0.05% | +268,420+108.4% | Added |
| California Public Employees Retirement System | 517,368 | $17.4M | 0.01% | −11,633−2.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 523,199 | $17.5M | 0.04% | −1,216,978−69.9% | Reduced |
| Rockefeller Capital Management L.P. | 555,452 | $18.6M | 0.03% | −22,125−3.8% | Reduced |
| Principal Financial Group Inc | 562,301 | $18.9M | 0.01% | −21,191−3.6% | Reduced |
| Envestnet Asset Management Inc | 566,801 | $19.0M | 0.01% | −187,816−24.9% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 578,456 | $19.4M | 0.05% | +198,505+52.2% | Added |
| HSBC Holdings PLC | 589,538 | $19.9M | 0.01% | +144,531+32.5% | Added |
| Tudor Investment Corp Et Al | 612,982 | $20.6M | 0.11% | +548,581+851.8% | Added |
| Fisher Asset Management, LLC | 621,198 | $20.8M | 0.01% | −88,168−12.4% | Reduced |
| Two Sigma Investments, LP | 636,749 | $21.4M | 0.03% | +144,447+29.3% | Added |
| Schroder Investment Management Group | 642,451 | $21.8M | 0.02% | −302,252−32.0% | Reduced |
| Millennium Management LLC | 655,489 | $22.0M | 0.02% | −765,697−53.9% | Reduced |
| UBS Group AG | 665,738 | $22.3M | 0.00% | −524,375−44.1% | Reduced |
| Rhumbline Advisers | 699,465 | $23.5M | 0.02% | −21,332−3.0% | Reduced |
| iA Global Asset Management Inc. | 717,679 | $24.1M | 0.31% | −202,451−22.0% | Reduced |
| D. E. Shaw & Co., Inc. | 720,789 | $24.2M | 0.02% | +644,064+839.4% | Added |
| Robeco Institutional Asset Management B.V. | 739,904 | $24.8M | 0.04% | −31,614−4.1% | Reduced |
| Qube Research & Technologies Ltd | 834,712 | $28.0M | 0.04% | +834,712 | New |
| Managed Asset Portfolios, LLC | 845,280 | $28.4M | 3.42% | −24,353−2.8% | Reduced |
| Royal Bank of Canada | 849,329 | $28.5M | 0.01% | −35,413−4.0% | Reduced |
| Bank of Nova Scotia | 901,305 | $30.2M | 0.04% | +68,307+8.2% | Added |
| Value Holdings Management Co. LLC | 907,325 | $30.4M | 5.09% | 00.0% | Unchanged |
| Wells Fargo & Company | 924,219 | $31.0M | 0.01% | +8,308+0.9% | Added |
| JPMorgan Chase & Co | 979,965 | $32.9M | 0.00% | −418,328−29.9% | Reduced |
| Nomura Asset Management Co Ltd | 992,633 | $33.3M | 0.08% | +74,530+8.1% | Added |
| BNP Paribas Arbitrage, SA | 1,002,076 | $33.6M | 0.02% | +242,735+32.0% | Added |
| Arrowstreet Capital, Limited Partnership | 1,022,252 | $34.3M | 0.02% | +272,496+36.3% | Added |
| Wellington Management Group LLP | 1,055,274 | $35.4M | 0.01% | +2,343+0.2% | Added |
| Neumeier Poma Investment Counsel LLC | 1,126,603 | $37.8M | 3.12% | +147,215+15.0% | Added |
| UBS Asset Management Americas Inc | 1,132,951 | $38.0M | 0.01% | −84,063−6.9% | Reduced |
| Premier Fund Managers Ltd | 1,136,135 | $38.6M | 2.22% | −284,115−20.0% | Reduced |
| Nuveen, LLC | 1,216,328 | $40.8M | 0.01% | +689,217+130.8% | Added |
| PGGM Investments | 1,381,017 | $46.3M | 0.73% | +281,110+25.6% | Added |
| Deutsche Bank AG | 1,385,807 | $46.5M | 0.02% | −830.0% | Reduced |
| Bessemer Group Inc | 1,395,039 | $46.8M | 0.07% | +10,440+0.8% | Added |
| Standard Life Aberdeen plc | 1,499,337 | $50.3M | 0.08% | −4,970−0.3% | Reduced |
| Quantinno Capital Management LP | 1,518,014 | $50.9M | 0.10% | −14,266−0.9% | Reduced |
| CI Private Wealth, LLC | 1,537,293 | $51.6M | 0.07% | −225,124−12.8% | Reduced |
| Goldman Sachs Group Inc | 1,554,346 | $52.1M | 0.01% | −381,136−19.7% | Reduced |
| Allianz Asset Management GmbH | 1,586,886 | $53.2M | 0.06% | −134,320−7.8% | Reduced |
| King Luther Capital Management Corp | 1,590,916 | $53.4M | 0.22% | −55,411−3.4% | Reduced |
| First Trust Advisors LP | 1,656,991 | $55.6M | 0.04% | −324,502−16.4% | Reduced |
| Copeland Capital Management, LLC | 1,663,090 | $55.8M | 1.25% | −100,528−5.7% | Reduced |
| Capital Research Global Investors | 1,775,766 | $59.6M | 0.01% | −11,337−0.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 1,826,067 | $61.2M | 0.09% | +45,299+2.5% | Added |
| Janus Henderson Group PLC | 1,961,290 | $65.8M | 0.03% | +188,426+10.6% | Added |
| Bank of America Corp | 2,019,711 | $67.7M | 0.00% | −992,340−32.9% | Reduced |
| Aviva PLC | 2,039,264 | $68.4M | 0.12% | +95,029+4.9% | Added |
| Charles Schwab Investment Management Inc | 2,158,990 | $72.4M | 0.01% | +27,576+1.3% | Added |
| Van Berkom & Associates Inc. | 2,292,595 | $76.9M | 2.22% | +227,525+11.0% | Added |
| Morgan Stanley | 2,320,740 | $77.8M | 0.00% | −60,656−2.5% | Reduced |
| Robeco Schweiz AG | 2,347,104 | $78.7M | 1.76% | −31,916−1.3% | Reduced |
| Northern Trust Corp | 2,350,923 | $78.8M | 0.01% | −201,284−7.9% | Reduced |
| Bank of New York Mellon Corp | 2,356,548 | $79.0M | 0.01% | −279,651−10.6% | Reduced |
| M&G Plc | 2,405,586 | $81.8M | 0.42% | −3,988−0.2% | Reduced |
| Invesco Ltd. | 2,570,107 | $86.2M | 0.01% | +259,887+11.2% | Added |
| Ameriprise Financial Inc | 2,613,627 | $87.7M | 0.02% | +77,609+3.1% | Added |
| Ninety One UK Ltd | 2,802,991 | $94.0M | 0.20% | −67,253−2.3% | Reduced |
| AQR Capital Management LLC | 2,875,372 | $96.4M | 0.05% | +2,238,721+351.6% | Added |
| Fernbridge Capital Management LP | 3,066,841 | $102.9M | 5.05% | +2,051,175+202.0% | Added |
| Alliancebernstein L.P. | 3,078,999 | $103.3M | 0.03% | −3,502,245−53.2% | Reduced |
| LGT Group Foundation | 3,061,289 | $104.0M | 1.13% | +82,719+2.8% | Added |
| Impax Asset Management Group plc | 3,208,190 | $107.6M | 0.67% | +3,208,190 | New |
| Norges Bank | 3,433,575 | $115.2M | 0.01% | +3,433,575 | New |
| Dimensional Fund Advisors LP | 3,676,680 | $123.3M | 0.03% | +83,419+2.3% | Added |
| FIL Ltd | 4,667,958 | $156.6M | 0.12% | +381,708+8.9% | Added |