Tetra Tech, Inc. TTEK
40.94 USD +1.53 (+3.88%)
At closeNov 4, 2026, 4:39 PM EST
40.94 0.00 0.00%
After hours · Nov 4, 4:39 PM ET
39.43 Day range 41.00
25.81 52-week range 43.14
- YTD
- +22.06%
- 1 year
- +27.58%
Held by funds
232 US ETFs and mutual funds hold TTEK · largest positions
Ownership
Held by insiders 0.49%
Held by institutions 103.50%
Float held by institutions 104.01%
Institutions 805
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 11.20% | 28,675,276 | 1.17B | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 4.87% | 12,467,970 | 510.44M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.58% | 11,725,738 | 480.05M | Jun 29, 2026 |
| Capital International Investors | 4.55% | 11,651,238 | 477.00M | Jun 29, 2026 |
| State Street Corporation | 3.81% | 9,761,640 | 399.64M | Jun 29, 2026 |
| FMR, LLC | 3.42% | 8,768,611 | 358.99M | 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 | 373.39M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.22% | 8,249,188 | 337.72M | Jun 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.33% | 5,954,009 | 243.76M | Jun 29, 2026 |
| Capitol Series Trust-FullerThaler Behavioral Small-Cap Equity Fund | 1.84% | 4,701,700 | 192.49M | Jun 29, 2026 |
| Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total | 1.63% | 4,183,182 | 171.26M | Aug 30, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund | 1.47% | 3,770,313 | 154.36M | 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 |