Tetra Tech Inc (NASDAQ:TTEK) has 590 institutional investors that have filed 13F reports for the period 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 GROUP INC | 31 Mar, 2026 | 25,800,544 | -501,178 | -1.91% | $865,350,246.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 25,731,629 | 225,612 | 0.88% | $863,038,830.00 |
| 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 | 11,204,346 | -2,984,899 | -21.04% | $375,811,134.00 |
| State Street Corp | 31 Mar, 2026 | 9,635,912 | 211,666 | 2.25% | $290,233,669.00 |
| State Street Corp | 31 Mar, 2026 | 9,424,246 | -1,868,482 | -16.55% | $316,089,211.00 |
| Capital International Investors | 31 Mar, 2026 | 9,016,577 | 1,936,902 | 27.36% | $302,415,993.00 |
| Neuberger Berman Group LLC | 31 Mar, 2026 | 8,351,221 | -676,477 | -7.49% | $280,099,964.00 |
| 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 | 7,007,004 | -172,028 | -2.40% | $235,014,914.00 |
| 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 |
| Amundi | 31 Mar, 2026 | 5,095,797 | -663,884 | -11.53% | $170,897,995.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 5,082,342 | 52,375 | 1.04% | $170,495,825.00 |
| 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 |