Tetra TechTTEK
13F holders, Q3 2025 (September 30)595holders +8
71new positions
60sold out
8famous investors
$33.38avg. 13F price*
At the end of Q3 2025, 595 institutions reported holding Tetra Tech Inc. (TTEK) in their 13F filings, up 8 from Q2 2025. 71 opened new positions and 60 sold out. The largest holders were Vanguard Group Inc. ($878.0M), BlackRock, Inc. ($851.4M) and Pictet Asset Management Holding SA ($473.6M). 8 famous investors held it, including Joel Greenblatt (0.1% of Gotham Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Tetra Tech Inc.
- CUSIP
- 88162G103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 71 | $76.1M |
| Exits | 60 | $149.3M |
All 13F filers, Q2 2025 → Q3 2025: 22,736,108 shares bought and 22,843,882 shares sold, net −107,774 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 595 holders
| Vanguard Group Inc. | 0.01% | Reduce -1.1% | 26,301,722 | $878.0M |
| BlackRock, Inc. | 0.01% | Reduce -0.7% | 25,506,017 | $851.4M |
| Pictet Asset Management Holding SA | 0.46% | Add +2.5% | 14,189,245 | $473.6M |
| State Street Corp. | 0.01% | Reduce -5.4% | 11,292,728 | $377.0M |
| Neuberger Berman Group LLC | 0.22% | Add +1.4% | 9,027,698 | $301.3M |
| Sands Capital Management, LLC | 0.66% | Add +38.0% | 7,179,032 | $239.6M |
| Capital International Investors | 0.04% | Add +249.1% | 7,079,675 | $236.3M |
| Alliancebernstein L.P. | 0.07% | Add +12.0% | 6,581,244 | $219.7M |
| Amundi | 0.06% | Reduce -14.8% | 5,759,681 | $193.3M |
| Geode Capital Management, LLC | 0.01% | Add +1.4% | 5,029,967 | $167.9M |
| FIL Ltd | 0.11% | Reduce -7.9% | 4,286,250 | $143.1M |
| Dimensional Fund Advisors LP | 0.03% | Add +1.4% | 3,593,261 | $119.9M |
| Bank of America Corp. | 0.01% | Add +1.4% | 3,012,051 | $100.5M |
| LGT Group Foundation | 1.13% | Add +6.3% | 2,978,570 | $98.9M |
| Ninety One UK Ltd | 0.21% | Add +2.8% | 2,870,244 | $95.8M |
| Bank of New York Mellon Corp | 0.02% | Add +5.4% | 2,636,199 | $88.0M |
| Northern Trust Corp. | 0.01% | Reduce -1.7% | 2,552,207 | $85.2M |
| Ameriprise Financial Inc. | 0.02% | Add +5.8% | 2,536,018 | $84.7M |
| M&G PLC | 0.44% | Reduce -0.3% | 2,409,574 | $79.5M |
| Morgan Stanley | 0.00% | Reduce -11.6% | 2,381,396 | $79.5M |
| Robeco Schweiz AG | 1.79% | Reduce -15.0% | 2,379,020 | $79.4M |
| Invesco Ltd. | 0.01% | Reduce -8.7% | 2,310,220 | $77.1M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +1.0% | 2,131,414 | $71.1M |
| Van Berkom & Associates Inc. | 1.99% | Add +0.1% | 2,065,070 | $68.9M |
| First Trust Advisors LP | 0.05% | Add +52.2% | 1,981,493 | $66.1M |
| Aviva PLC | 0.12% | Add +95.9% | 1,944,235 | $64.9M |
| Goldman Sachs Group Inc. | 0.01% | Add +99.5% | 1,935,482 | $64.6M |
| Capital Research Global Investors | 0.01% | No change | 1,787,103 | $59.7M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.10% | Add +1.4% | 1,780,768 | $59.4M |
| Janus Henderson Group PLC | 0.03% | Add +1553.4% | 1,772,864 | $59.2M |
| Copeland Capital Management, LLC | 1.23% | Reduce -4.8% | 1,763,618 | $58.9M |
| Corient Private Wealth LP | 0.09% | Reduce -12.7% | 1,762,417 | $58.8M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.13% | Reduce -20.9% | 1,740,177 | $58.1M |
| Allianz Asset Management GmbH | 0.07% | Reduce -14.8% | 1,721,206 | $57.5M |
| King Luther Capital Management Corp. | 0.23% | Add +0.2% | 1,646,327 | $55.0M |
| Quantinno Capital Management LP | 0.14% | Add +93.4% | 1,532,280 | $51.1M |
| Aberdeen Group plc | 0.08% | Reduce -3.3% | 1,504,307 | $50.3M |
| Premier Fund Managers Ltd | 1.96% | Add +8.8% | 1,420,250 | $47.8M |
| Millennium Management | 0.04% | Add +62.3% | 1,421,186 | $47.4M |
| JPMorgan Chase & Co. | 0.00% | Add +9.1% | 1,398,293 | $46.7M |
| Deutsche Bank AG | 0.02% | Add +60.6% | 1,385,890 | $46.3M |
| Bessemer Group Inc. | 0.07% | Add +42.7% | 1,384,599 | $46.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Reduce -17.5% | 1,217,014 | $40.6M |
| UBS Group AG | 0.01% | Add +16.1% | 1,190,113 | $39.7M |
| Jacobs Levy Equity Management, Inc. | 0.16% | Reduce -8.2% | 1,174,227 | $39.2M |
| PGGM Investments | 0.59% | Add +32.2% | 1,099,907 | $36.7M |
| Wellington Management Group LLP | 0.01% | Reduce -23.9% | 1,052,931 | $35.1M |
| Fernbridge Capital Management LP | 1.65% | Add +7.7% | 1,015,666 | $33.9M |
| Citadel Advisors | 0.03% | Reduce -65.2% | 999,369 | $33.4M |
| Neumeier Poma Investment Counsel LLC | 2.68% | Add +10.3% | 979,388 | $32.7M |
| Schroder Investment Management Group | 0.02% | Reduce -11.4% | 944,703 | $31.8M |
| iA Global Asset Management Inc. | 0.42% | Reduce -3.1% | 920,130 | $30.7M |
| Nomura Asset Management Co. Ltd. | 0.08% | Add +6.2% | 918,103 | $30.6M |
| Wells Fargo & Company | 0.01% | Add +0.0% | 915,911 | $30.6M |
| Value Holdings Management Co. LLC | 4.85% | No change | 907,325 | $30.3M |
| Royal Bank of Canada | 0.01% | Reduce -8.2% | 884,742 | $29.5M |
| Managed Asset Portfolios, LLC | 3.59% | Add +1.6% | 869,633 | $29.0M |
| Bank of Nova Scotia | 0.05% | Add +10.9% | 832,998 | $27.8M |
| Robeco Institutional Asset Management B.V. | 0.04% | Add +18.6% | 771,518 | $25.8M |
| BNP Paribas Financial Markets | 0.02% | Reduce -1.3% | 759,341 | $25.3M |
| Envestnet Asset Management Inc. | 0.01% | Add +1.2% | 754,617 | $25.2M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Reduce -17.3% | 749,756 | $25.0M |
| Bowen Hanes & Co. Inc. | 0.62% | Reduce -59.8% | 737,425 | $24.6M |
| New York State Common Retirement Fund | 0.03% | Add +0.4% | 730,541 | $24.4M |
| Rhumbline Advisers | 0.02% | Reduce -1.4% | 720,797 | $24.1M |
| Fisher Asset Management | 0.01% | Reduce -2.2% | 709,366 | $23.7M |
| Segall Bryant & Hamill, LLC | 0.30% | Reduce -26.2% | 677,463 | $22.6M |
| AQR Capital Management | 0.01% | Add +140.4% | 636,651 | $21.3M |
| Allspring Global Investments Holdings, LLC | 0.03% | Reduce -36.9% | 618,862 | $20.5M |
| Principal Financial Group Inc. | 0.01% | Reduce -2.5% | 583,492 | $19.5M |
| Rockefeller Capital Management L.P. | 0.04% | Reduce -20.1% | 577,577 | $19.3M |
| Russell Investments Group, Ltd. | 0.02% | Add +7.1% | 533,390 | $17.8M |
| California Public Employees Retirement System | 0.01% | Add +4.5% | 529,001 | $17.7M |
| Nuveen, LLC | 0.00% | Reduce -42.3% | 527,111 | $17.6M |
| Baillie Gifford & Co. | 0.01% | Reduce -11.0% | 523,150 | $17.5M |
| Renaissance Technologies | 0.02% | Add +29.4% | 507,700 | $16.9M |
| Los Angeles Capital Management LLC | 0.06% | Add +74.5% | 499,178 | $16.7M |
| LPL Financial LLC | 0.00% | Reduce -8.7% | 496,817 | $16.6M |
| TimesSquare Capital Management, LLC | 0.24% | Reduce -52.8% | 495,020 | $16.5M |
| Two Sigma Investments, LP | 0.03% | Add +401.3% | 492,302 | $16.4M |
| Gotham Asset Management | 0.07% | Add +392.8% | 486,869 | $16.3M |
| Swiss National Bank | 0.01% | Reduce -0.2% | 485,400 | $16.2M |
| Retirement Systems of Alabama | 0.05% | Add +12.2% | 477,575 | $15.9M |
| CI Investments Inc. | 0.06% | Reduce -4.6% | 474,489 | $15.8M |
| Sei Investments Co. | 0.02% | Reduce -4.4% | 468,993 | $15.7M |
| one8zero8, LLC | 3.37% | Add +1.7% | 467,746 | $15.6M |
| Candriam S.C.A. | 0.08% | Reduce -10.1% | 447,729 | $14.9M |
| HSBC Holdings PLC | 0.01% | Add +22.1% | 445,007 | $14.9M |
| Winslow Asset Management Inc. | 2.77% | Reduce -1.1% | 442,701 | $14.8M |
| Legal & General Group Plc | 0.00% | Reduce -3.9% | 423,199 | $14.1M |
| Trillium Asset Management, LLC | 0.37% | Reduce -1.0% | 418,721 | $14.0M |
| Sarasin & Partners LLP | 0.14% | Reduce -91.3% | 409,723 | $13.8M |
| Ninety One North America, Inc. | 0.61% | Add +5.0% | 404,095 | $13.5M |
| Barclays PLC | 0.01% | Add +72.5% | 401,860 | $13.4M |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.3% | 394,847 | $13.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.04% | Add +278.0% | 379,951 | $12.7M |
| Jane Street Group, LLC | 0.01% | Reduce -33.7% | 371,879 | $12.4M |
| Mackenzie Financial Corp. | 0.01% | New | 352,367 | $11.8M |
| Thematics Asset Management | 0.52% | Add +9.5% | 345,750 | $11.5M |
| LBP Am SA | 0.14% | Add +68.4% | 345,230 | $11.5M |
"% of holder's portfolio" is TTEK's weight in each manager's 13F, not the share of Tetra Tech Inc. the manager owns.