Tetra Tech (TTEK)
Solving water, environmental and infrastructure challenges through consulting and engineering.
$35.46
After hours0.00 (0.00%)
At close$35.46(−1.39%)
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13F · 13D/G · Form 4
| Institutions | 99.84% | 255.63M shares | |
|---|---|---|---|
| 568 holders · as of Jun 30, 2026 | |||
| Insiders | 0.54% | 1.38M shares | |
| 14 holders · as of Aug 6, 2026 | |||
| Adds to | 100.38% | ||
256.04M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
These groups come from separate filings that can overlap, so they add to 100.38%; nothing is left for Other.
13F, as of Jun 30, 2026
568 holders · 255.63M shares · 56 new positions · 263 increased · 214 reduced · 93 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 28.68M | 11.20% | +1.88M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 12.47M | 4.87% | −175.1K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 11.73M | 4.58% | +16.6K | Aug 13, 2026 |
| Capital International Investors | 11.65M | 4.55% | +266.0K | Aug 12, 2026 |
| State Street Corp | 9.76M | 3.81% | +125.7K | Aug 7, 2026 |
| FMR LLC | 8.77M | 3.42% | +8.44M | Aug 13, 2026 |
| Geode Capital Management, LLC | 6.83M | 2.67% | +1.62M | Aug 12, 2026 |
| FIL Ltd | 5.47M | 2.14% | +639.0K | Aug 13, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 9.70% | 26.03M | 13G | Feb 6, 2025 |
| Vanguard Capital Management | 5.23% | 13.66M | 13G | Apr 30, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| May 15, 2026 | Jeffrey R. Feelerdirector | Purchase | 1,900 | $26.41 | 1,900 |
| Feb 4, 2026 | Brian N. Carterofficer: SVP, Corporate Controller | Sale | 9,979 | $40.23 | 46,496 |
House and Senate disclosures
Not reported.