Tetra Tech Inc (NASDAQ:TTEK) currently has 222 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 30 Sep, 2025 | 26,301,722 | -279,459 | -1.05% | $877,951,480.00 |
| BlackRock, Inc. | 30 Sep, 2025 | 25,506,017 | -189,476 | -0.74% | $851,390,862.00 |
| Pictet Asset Management Holding SA | 30 Sep, 2025 | 14,189,245 | 341,144 | 2.46% | $473,641,448.00 |
| STATE STREET CORP | 30 Sep, 2025 | 11,292,728 | -649,011 | -5.43% | $376,951,261.00 |
| Neuberger Berman Group LLC | 30 Sep, 2025 | 9,027,698 | 124,570 | 1.40% | $301,344,548.00 |
| SANDS CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 7,179,032 | 1,978,697 | 38.05% | $239,636,088.00 |
| Capital International Investors | 30 Sep, 2025 | 7,079,675 | 5,051,485 | 249.06% | $236,319,552.00 |
| ALLIANCEBERNSTEIN L.P. | 30 Sep, 2025 | 6,581,244 | 705,673 | 12.01% | $219,681,925.00 |
| Amundi | 30 Sep, 2025 | 5,759,681 | -1,003,732 | -14.84% | $193,251,053.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 30 Sep, 2025 | 5,029,967 | 68,006 | 1.37% | $167,930,297.00 |
| FIL Ltd | 30 Sep, 2025 | 4,286,250 | -366,149 | -7.87% | $143,075,025.00 |
| DIMENSIONAL FUND ADVISORS LP | 30 Sep, 2025 | 3,593,261 | 48,163 | 1.36% | $119,946,579.00 |
| BANK OF AMERICA CORP /DE/ | 30 Sep, 2025 | 3,012,051 | 42,406 | 1.43% | $100,542,270.00 |
| LGT Group Foundation | 30 Sep, 2025 | 2,978,570 | 176,302 | 6.29% | $98,858,738.00 |
| Ninety One UK Ltd | 30 Sep, 2025 | 2,870,244 | 78,332 | 2.81% | $95,808,748.00 |
| Bank of New York Mellon Corp | 30 Sep, 2025 | 2,636,199 | 135,928 | 5.44% | $87,996,319.00 |
| NORTHERN TRUST CORP | 30 Sep, 2025 | 2,552,207 | -43,497 | -1.68% | $85,192,670.00 |
| AMERIPRISE FINANCIAL INC | 30 Sep, 2025 | 2,536,018 | 139,037 | 5.80% | $84,652,266.00 |
| M&G Plc | 30 Sep, 2025 | 2,409,574 | -6,938 | -0.29% | $79,515,942.00 |
| MORGAN STANLEY | 30 Sep, 2025 | 2,381,396 | -313,270 | -11.63% | $79,491,069.00 |