Tetra Tech, Inc. TTEK
40.29 USD -0.27 (-0.67%)
At closeNov 6, 2026, 7:40 PM EST
41.00 +0.71 +1.76%
After hours · Nov 6, 7:40 PM ET
38.64 Day range 40.50
26.18 52-week range 42.61
- YTD
- +20.13%
- 1 year
- +26.18%
Held by funds
234 US ETFs and mutual funds hold TTEK · largest positions
Ownership
Held by insiders 0.49%
Held by institutions 103.48%
Float held by institutions 103.99%
Institutions 811
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 11.20% | 28,675,276 | 1.16B | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 4.87% | 12,467,970 | 502.33M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.58% | 11,725,738 | 472.43M | Jun 29, 2026 |
| Capital International Investors | 4.55% | 11,651,238 | 469.43M | Jun 29, 2026 |
| State Street Corporation | 3.81% | 9,761,640 | 393.30M | Jun 29, 2026 |
| FMR, LLC | 3.42% | 8,768,611 | 353.29M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| iShares Trust-iShares Core S&P Mid-Cap ETF | 3.56% | 9,120,366 | 367.46M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.22% | 8,249,188 | 332.36M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.33% | 5,954,009 | 239.89M | Jun 29, 2026 |
| Capitol Series Trust-FullerThaler Behavioral Small-Cap Equity Fund | 1.84% | 4,701,700 | 189.43M | Jun 29, 2026 |
| Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total | 1.65% | 4,221,735 | 170.09M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund | 1.47% | 3,770,313 | 151.91M | Jun 29, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| ARGUS ROGER R. | President | Conversion of Exercise of derivative security | Nov 27, 2025 | 39,890 |
| BATRACK DAN L | Chief Executive Officer | Conversion of Exercise of derivative security | Nov 27, 2025 | 332,498 |
| BIRKENBEUEL GARY R. | Director | Stock Award(Grant) | Jan 11, 2026 | 51,032 |
| BURDICK STEVEN M | Chief Financial Officer | Stock Gift | Feb 5, 2026 | 138,251 |
| CARTER BRIAN N | Officer | Sale | Feb 3, 2026 | 46,496 |
| GANDHI PRASHANT | Director | Conversion of Exercise of derivative security | Nov 27, 2025 | 16,553 |