TTEK: Tetra Tech Inc New insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Institutional ownership (Q2 2026)
555 institutions reported holding $7.01B of Tetra Tech Inc New on Form 13F (593 the quarter before). 48 opened a new position and 86 sold out. Shares held by institutions: +3%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 28,675,276 | $828.43M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 12,467,970 | $360.20M |
| VANGUARD CAPITAL MANAGEMENT LLC | 11,725,738 | $338.76M |
| Capital International Investors | 11,651,238 | $336.60M |
| STATE STREET CORP | 9,761,640 | $282.01M |
| FMR LLC | 8,768,611 | $253.33M |
| GEODE CAPITAL MANAGEMENT, LLC | 6,833,071 | $197.44M |
| FIL Ltd | 5,471,691 | $158.08M |
| Amundi | 5,098,519 | $147.26M |
| FULLER & THALER ASSET MANAGEMENT, INC. | 4,921,268 | $142.18M |
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