Tetra Tech Inc (NASDAQ:TTEK) appears in 590 institutional 13F filings for the quarter ending December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 26,790,406 | 1,058,777 | 4.11% | $806,927,023.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 12,643,094 | 12,643,094 | 0.00% | $380,809,991.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 11,709,151 | 11,709,151 | 0.00% | $352,679,628.00 |
| Capital International Investors | 31 Mar, 2026 | 11,385,267 | 2,368,690 | 26.27% | $342,924,242.00 |
| Pictet Asset Management Holding SA | 31 Mar, 2026 | 9,644,792 | -1,559,554 | -13.92% | $290,487,546.00 |
| State Street Corp | 31 Mar, 2026 | 9,635,912 | 211,666 | 2.25% | $290,233,669.00 |
| Neuberger Berman Group LLC | 31 Mar, 2026 | 7,269,657 | -1,081,564 | -12.95% | $218,962,082.00 |
| SANDS CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 6,658,823 | -348,181 | -4.97% | $200,563,749.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 5,217,448 | 135,106 | 2.66% | $157,185,669.00 |
| FIL Ltd | 31 Mar, 2026 | 4,832,672 | 164,714 | 3.53% | $145,560,081.00 |
| WELLINGTON MANAGEMENT GROUP LLP | 31 Mar, 2026 | 4,804,049 | 3,748,775 | 355.24% | $144,697,957.00 |
| Amundi | 31 Mar, 2026 | 4,749,247 | -346,550 | -6.80% | $143,061,971.00 |
| Van Berkom & Associates Inc. | 31 Mar, 2026 | 4,571,576 | 2,278,981 | 99.41% | $137,696.00 |
| Impax Asset Management Group plc | 31 Mar, 2026 | 3,830,074 | 621,884 | 19.38% | $115,361,829.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 3,789,240 | 112,560 | 3.06% | $114,128,467.00 |
| FERNBRIDGE CAPITAL MANAGEMENT LP | 31 Mar, 2026 | 3,400,775 | 333,934 | 10.89% | $102,431,343.00 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 31 Mar, 2026 | 3,314,443 | 3,314,443 | 0.00% | $99,831,025.00 |
| LGT Group Foundation | 31 Mar, 2026 | 3,161,708 | 100,419 | 3.28% | $95,230,645.00 |
| Invesco Ltd. | 31 Mar, 2026 | 2,934,900 | 364,793 | 14.19% | $88,399,200.00 |
| ALLIANCEBERNSTEIN L.P. | 31 Mar, 2026 | 2,807,465 | -271,534 | -8.82% | $94,162,376.00 |