Tetra Tech
Solving water, environmental and infrastructure challenges through consulting and engineering.
$36.54
After-hours close0.00 (0.00%)
At close$36.54(−0.27%)
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Breakdown13F · Form 4
Institutions 101.52%Insiders 0.49%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 259.52M · Float 258.21M · 99.5% free float
Institutions13F, as of Jun 30, 2026
566 holders · 263.48M shares · 59 new positions · 266 increased · 209 reduced · 95 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 28.68M | 11.05% | +1.88M | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 12.47M | 4.80% | −175.1K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 11.73M | 4.52% | +16.6K | Aug 13, 2026 |
| Capital International Investors | 11.65M | 4.49% | +266.0K | Aug 12, 2026 |
| State Street Corp | 9.76M | 3.76% | +125.7K | Aug 7, 2026 |
| FMR LLC | 8.77M | 3.38% | +8.44M | Aug 13, 2026 |
| Geode Capital Management, LLC | 6.83M | 2.63% | +1.62M | Aug 12, 2026 |
| FIL Ltd | 5.47M | 2.11% | +639.0K | Aug 13, 2026 |
Beneficial owners13D/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 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Dan L. Batrack | director, officer: Chairman and CEO | 332.5K | 0.13% | Dec 2, 2025 |
| Leslie L. Shoemaker | officer: EVP, Chief Sustainability | 325.8K | 0.13% | Dec 2, 2025 |
| Kimberly E. Ritrievi | director | 149.9K | 0.06% | Mar 18, 2026 |
| Steven M. Burdick | officer: EVP, CFO | 138.3K | 0.05% | Feb 6, 2026 |
| Preston Hopson | officer: EVP, Chief Legal/Human Capital | 82.7K | 0.03% | Dec 2, 2025 |
| Kirsten M. Volpi | director | 74.2K | 0.03% | Aug 6, 2026 |
| Gary Birkenbeuel | director | 46.6K | 0.02% | Jan 14, 2026 |
| Brian N. Carter | officer: SVP, Corporate Controller | 46.5K | 0.02% | Feb 6, 2026 |
| Roger R. Argus | officer: President | 39.9K | 0.02% | Dec 2, 2025 |
| Prashant Gandhi | director | 16.6K | 0.01% | Dec 2, 2025 |
1 ten-percent owner holds 31.7K shares by Form 4, outside the officers-and-directors figure above · 33 people have not refiled in the last 18 months (9.35M shares), so they are not in the figure above
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 |
CongressHouse and Senate disclosures
Not reported.