Tetra Tech, Inc. (TTEK) Institutional Ownership & Insider Trading
552 institutions reported holding Tetra Tech, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 2 insider trades on Form 4 since 2025-10-01.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
TTEKTetra Tech, Inc.Follow TTEK — free
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- Market cap
- 9.5B
- P/E TTM
- 22.3
- Dividend yield
- 0.7%
- 52-week
- —
- Next earnings
- 11 Nov, in 18 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters552 institutions held 98.8% of the shares. Across filers that reported both quarters, shares held changed +2.0%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 552 | 253 | +2.0% | 182 | 42 | 196 | 73 |
| Mar 26 | 586 | 246 | +2.3% | 183 | 55 | 202 | 72 |
| Dec 25 | 597 | 241 | -5.0% | 154 | 61 | 231 | 57 |
| Sep 25 | 582 | 250 | +1.5% | 194 | 59 | 173 | 47 |
| Jun 25 | 576 | 251 | +2.4% | 186 | 86 | 176 | 62 |
| Mar 25 | 550 | 242 | +3.6% | 207 | 52 | 173 | 118 |
| Dec 24 | 622 | 237 | -1.5% | 172 | 51 | 198 | 83 |
| Sep 24 | 626 | 234 | — | — | — | — | — |
Tetra Tech, Inc. — questions
- Who owns Tetra Tech, Inc. stock?
- 552 institutions reported Tetra Tech, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (11.2%), VANGUARD PORTFOLIO MANAGEMENT LLC (4.9%), VANGUARD CAPITAL MANAGEMENT LLC (4.6%).
- Are Tetra Tech, Inc. insiders buying or selling?
- 2 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.
Every figure on this page comes from Tetra Tech, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.