Tetra Tech Inc
TTEK- Exchange
- Nasdaq
- Industry
- Services-Engineering Services
- SEC CIK
- 0000831641
No open-market purchases or sales by Tetra Tech Inc insiders were filed in the last 90 days; 555 institutions reported holding it in 13F filings for Q2 2026, worth $7.32B in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Tetra Tech Inc as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 555
- −32 vs. Q1 2026
- Shares held
- 253.3M
- +10.9M (+4.5%) vs. Q1 2026
- Total value
- $7.32B
- +$6.63M (+0.1%) vs. Q1 2026
- New holders
- 54
- 206 more added
- Sold out
- 86
- 214 more reduced
6 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TTEK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 555 | $7.32B |
| Q1 2026 | 593 | $7.35B |
| Q4 2025 | 611 | $8.10B |
| Q3 2025 | 597 | $8.22B |
| Q2 2025 | 590 | $8.94B |
| Q1 2025 | 568 | $7.18B |
| Q4 2024 | 638 | $9.45B |
| Q3 2024 | 646 | $11.2B |
| Q2 2024 | 600 | $9.88B |
| Q1 2024 | 512 | $8.66B |
| Q4 2023 | 510 | $7.87B |
| Q3 2023 | 471 | $7.09B |
| Q2 2023 | 455 | $7.67B |
| Q1 2023 | 445 | $6.81B |
| Q4 2022 | 470 | $6.68B |
| Q3 2022 | 412 | $5.91B |
| Q2 2022 | 415 | $6.31B |
| Q1 2022 | 404 | $7.86B |
| Q4 2021 | 401 | $7.93B |
| Q3 2021 | 359 | $7.08B |
| Q2 2021 | 366 | $5.68B |
| Q1 2021 | 365 | $6.39B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Natural Investments, LLC | 28,409 | $820.0K | 0.18% | +6,818+31.6% | Added |
| Penobscot Investment Management Company, Inc. | 28,785 | $831.6K | 0.06% | −34,245−54.3% | Reduced |
| Hunter Associates Investment Management LLC | 29,452 | $847.0K | 0.10% | −10,742−26.7% | Reduced |
| Kestra Investment Management, LLC | 29,541 | $853.4K | 0.02% | −7,005−19.2% | Reduced |
| Caxton Associates LLP | 29,865 | $862.8K | 0.02% | −105,948−78.0% | Reduced |
| D.A. Davidson & Co. | 29,965 | $865.7K | 0.00% | −15−0.1% | Reduced |
| Summit Trail Advisors, LLC | 30,971 | $894.8K | 0.01% | −30,730−49.8% | Reduced |
| PFG Investments, LLC | 31,137 | $899.6K | 0.03% | +79+0.3% | Added |
| New York Life Investment Management LLC | 32,182 | $929.7K | 0.01% | +1,105+3.6% | Added |
| Lazard Freres Gestion S.A.S. | 33,330 | $962.0K | 0.02% | +7,500+29.0% | Added |
| Atria Investments LLC | 33,401 | $965.0K | 0.01% | −534−1.6% | Reduced |
| WCM Investment Management, LLC | 33,914 | $979.4K | 0.00% | −14,751−30.3% | Reduced |
| Group One Trading, L.P. | 33,974 | $981.5K | 0.03% | +28,265+495.1% | Added |
| Natixis Advisors, L.P. | 34,160 | $986.0K | 0.00% | +6,269+22.5% | Added |
| Marshall Wace, LLP | 35,094 | $1.01M | 0.00% | −684,524−95.1% | Reduced |
| Oddo BHF Asset Management SAS | 35,255 | $1.02M | 0.05% | +5,871+20.0% | Added |
| Xponance, Inc. | 36,147 | $1.04M | 0.01% | −8,785−19.6% | Reduced |
| Evexia Wealth LLC | 31,923 | $1.08M | 0.29% | +11,808+58.7% | Added |
| O'Shaughnessy Asset Management, LLC | 37,481 | $1.08M | 0.01% | −2,171−5.5% | Reduced |
| Natixis | 37,678 | $1.09M | 0.01% | +37,678 | New |
| Vancity Investment Management Ltd | 38,372 | $1.11M | 0.17% | +7,146+22.9% | Added |
| Formula Growth Ltd | 39,050 | $1.13M | 0.40% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 40,936 | $1.18M | 0.01% | +1,819+4.7% | Added |
| Victory Capital Management Inc | 41,812 | $1.21M | 0.00% | +153+0.4% | Added |
| Franklin Resources Inc | 42,811 | $1.24M | 0.00% | −18,731−30.4% | Reduced |
| Pathstone Holdings, LLC | 44,075 | $1.27M | 0.00% | −30,295−40.7% | Reduced |
| Regal Investment Advisors LLC | 45,299 | $1.31M | 0.07% | +16,049+54.9% | Added |
| Davy Global Fund Management Ltd | 47,210 | $1.36M | 0.09% | +5,723+13.8% | Added |
| Captrust Financial Advisors | 47,220 | $1.36M | 0.00% | −8,407−15.1% | Reduced |
| Brevan Howard Capital Management LP | 47,505 | $1.37M | 0.02% | +38,001+399.8% | Added |
| South Dakota Investment Council | 48,172 | $1.39M | 0.02% | +1,100+2.3% | Added |
| Hillsdale Investment Management Inc. | 48,450 | $1.40M | 0.03% | +15,100+45.3% | Added |
| Engineers Gate Manager LP | 50,310 | $1.45M | 0.02% | −18,851−27.3% | Reduced |
| Tributary Capital Management, LLC | 51,292 | $1.48M | 0.12% | +18,693+57.3% | Added |
| Exchange Traded Concepts, LLC | 51,511 | $1.49M | 0.01% | +2,583+5.3% | Added |
| CBOE Vest Financial, LLC | 53,612 | $1.55M | 0.02% | +723+1.4% | Added |
| Oregon Public Employees Retirement Fund | 53,625 | $1.55M | 0.02% | +100+0.2% | Added |
| New Mexico Educational Retirement Board | 54,500 | $1.57M | 0.04% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 55,254 | $1.60M | 0.00% | +11,443+26.1% | Added |
| Penserra Capital Management LLC | 55,672 | $1.61M | 0.01% | +55,672 | New |
| Glenmede Trust Co NA | 55,884 | $1.61M | 0.01% | +36,796+192.8% | Added |
| New Age Alpha Advisors, LLC | 56,441 | $1.63M | 0.07% | −1,163−2.0% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 58,379 | $1.69M | 0.02% | −50−0.1% | Reduced |
| Icon Advisers Inc | 60,000 | $1.73M | 0.33% | +60,000 | New |
| State of Michigan Retirement System | 60,740 | $1.75M | 0.01% | −2,000−3.2% | Reduced |
| Alps Advisors Inc | 61,176 | $1.77M | 0.01% | +20,605+50.8% | Added |
| D'Orazio & Associates, Inc. | 61,472 | $1.78M | 0.21% | −3,884−5.9% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 62,131 | $1.79M | 0.01% | −3,216−4.9% | Reduced |
| Worldquant Millennium Advisors LLC | 62,495 | $1.81M | 0.01% | +62,495 | New |
| Vanguard Investments Australia, Ltd. | 62,891 | $1.82M | 0.00% | 00.0% | Unchanged |
| Capital International Inc | 66,721 | $1.93M | 0.01% | +385+0.6% | Added |
| Numerai GP LLC | 66,725 | $1.93M | 0.16% | +43,602+188.6% | Added |
| Ameritas Investment Partners, Inc. | 66,850 | $1.93M | 0.05% | 00.0% | Unchanged |
| Arizona State Retirement System | 68,366 | $1.98M | 0.01% | +215+0.3% | Added |
| Fifth Third Bancorp | 68,383 | $1.98M | 0.00% | −9,792−12.5% | Reduced |
| Daiwa Securities Group Inc. | 68,500 | $1.98M | 0.00% | +11,700+20.6% | Added |
| Toroso Investments, LLC | 68,865 | $1.99M | 0.00% | −315,421−82.1% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 69,265 | $2.00M | 0.00% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 69,347 | $2.00M | 0.00% | −3,137−4.3% | Reduced |
| Relyea Zuckerberg Hanson LLC | 70,474 | $2.04M | 0.17% | +60.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 67,456 | $2.09M | 0.00% | +27,814+70.2% | Added |
| Yousif Capital Management, LLC | 72,832 | $2.10M | 0.02% | −5,133−6.6% | Reduced |
| S&T Bank | 72,871 | $2.11M | 0.63% | −9,611−11.7% | Reduced |
| Mercer Global Advisors Inc | 73,058 | $2.11M | 0.00% | +2,500+3.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 74,326 | $2.15M | 0.00% | −7,633−9.3% | Reduced |
| Brinker Capital Investments, LLC | 74,465 | $2.15M | 0.02% | +43,327+139.1% | Added |
| Moran Wealth Management, LLC | 74,939 | $2.16M | 0.06% | −9,206−10.9% | Reduced |
| Louisiana State Employees Retirement System | 75,900 | $2.19M | 0.03% | +300+0.4% | Added |
| Staley Capital Advisers Inc | 76,000 | $2.20M | 0.09% | −835−1.1% | Reduced |
| Scholtz & Company, LLC | 76,885 | $2.22M | 1.11% | −26,310−25.5% | Reduced |
| Public Employees Retirement System of Ohio | 77,042 | $2.23M | 0.01% | −1,079−1.4% | Reduced |
| Thrivent Financial for Lutherans | 77,104 | $2.23M | 0.00% | +14,981+24.1% | Added |
| Teachers Retirement System of the State of Kentucky | 79,425 | $2.29M | 0.02% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 80,359 | $2.32M | 0.04% | +10,164+14.5% | Added |
| La Banque Postale Asset Management SA | 80,891 | $2.34M | 0.02% | −93,280−53.6% | Reduced |
| State of New Jersey Common Pension Fund D | 85,427 | $2.47M | 0.01% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 86,962 | $2.51M | 0.01% | +10,121+13.2% | Added |
| Asset Management One Co.,Ltd. | 87,111 | $2.52M | 0.01% | −23,870−21.5% | Reduced |
| HBK Investments L P | 87,923 | $2.54M | 0.03% | −151,105−63.2% | Reduced |
| KLP Kapitalforvaltning AS | 88,800 | $2.57M | 0.01% | +24,600+38.3% | Added |
| Montanaro Asset Management Ltd | 91,800 | $2.65M | 0.84% | +20,300+28.4% | Added |
| Cerity Partners LLC | 91,882 | $2.65M | 0.00% | +31,787+52.9% | Added |
| First National Bank of Omaha | 93,472 | $2.70M | 0.08% | −22,121−19.1% | Reduced |
| One Capital Management, LLC | 91,196 | $2.75M | 0.08% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 96,085 | $2.78M | 0.01% | 00.0% | Unchanged |
| Mutual of America Capital Management LLC | 96,347 | $2.78M | 0.03% | −3,601−3.6% | Reduced |
| Union Bancaire Privee, UBP SA | 96,674 | $2.79M | 0.04% | +6,330+7.0% | Added |
| Kennedy Capital Management, Inc. | 96,888 | $2.80M | 0.05% | −8,400−8.0% | Reduced |
| Zacks Investment Management | 99,407 | $2.87M | 0.02% | +2,650+2.7% | Added |
| Vanguard Global Advisers, LLC | 99,596 | $2.88M | 0.00% | −5,177−4.9% | Reduced |
| Freestone Grove Partners LP | 101,174 | $2.92M | 0.02% | +49,821+97.0% | Added |
| LPL Financial LLC | 101,849 | $2.94M | 0.00% | −50,320−33.1% | Reduced |
| Isthmus Partners, LLC | 102,063 | $2.95M | 0.29% | +3,187+3.2% | Added |
| Bessemer Group Inc | 102,072 | $2.95M | 0.00% | −1,329,933−92.9% | Reduced |
| Catalyst Capital Advisors LLC | 102,700 | $2.97M | 0.05% | +27,040+35.7% | Added |
| Elo Mutual Pension Insurance Co | 104,276 | $3.01M | 0.04% | +90,305+646.4% | Added |
| Nisa Investment Advisors, LLC | 104,658 | $3.02M | 0.01% | +2,574+2.5% | Added |
| Swiss Life Asset Management Ltd | 106,155 | $3.07M | 0.01% | +12,257+13.1% | Added |
| State of Tennessee, Treasury Department | 107,318 | $3.10M | 0.01% | −1,932−1.8% | Reduced |
| Nordea Investment Management AB | 110,444 | $3.11M | 0.00% | +51,938+88.8% | Added |