Tetra Tech, Inc. · NASDAQ:TTEK
Tetra Tech, Inc. shareholders
As of Jun 30, 2026, 539 institutions reported holding Tetra Tech, Inc., 98.9% of its shares. Largest: BlackRock, Vanguard and Capital Group. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Tetra Tech, Inc. | Change | Filed |
|---|---|---|---|---|
| BlackRock | 28.7M | 11.2% | +1.88M | Aug 7, 2026 |
| Vanguard | 26.2M | 10.2% | −143K | Aug 13, 2026 |
| Capital Group | 13.1M | 5.1% | +194K | Aug 12, 2026 |
| State Street | 9.76M | 3.8% | +126K | Aug 7, 2026 |
| Fidelity | 8.77M | 3.4% | +8.44M | Aug 13, 2026 |
| Geode Capital | 6.83M | 2.7% | +1.62M | Aug 12, 2026 |
| FIL Ltd | 5.47M | 2.1% | +639K | Aug 13, 2026 |
| Amundi | 5.1M | 2.0% | +349K | Aug 26, 2026 |
| Fuller & Thaler Asset Management, Inc. | 4.92M | 1.9% | +1.61M | Aug 12, 2026 |
| Pictet Asset Management Holding SA | 4.76M | 1.9% | −4.89M | Jul 30, 2026 |