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 |
|---|---|---|---|---|---|
| Fifth Third Bancorp | 68,383 | $1.98M | 0.00% | −9,792−12.5% | Reduced |
| Arizona State Retirement System | 68,366 | $1.98M | 0.01% | +215+0.3% | Added |
| Ameritas Investment Partners, Inc. | 66,850 | $1.93M | 0.05% | 00.0% | Unchanged |
| Numerai GP LLC | 66,725 | $1.93M | 0.16% | +43,602+188.6% | Added |
| Capital International Inc | 66,721 | $1.93M | 0.01% | +385+0.6% | Added |
| Vanguard Investments Australia, Ltd. | 62,891 | $1.82M | 0.00% | 00.0% | Unchanged |
| Worldquant Millennium Advisors LLC | 62,495 | $1.81M | 0.01% | +62,495 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 62,131 | $1.79M | 0.01% | −3,216−4.9% | Reduced |
| D'Orazio & Associates, Inc. | 61,472 | $1.78M | 0.21% | −3,884−5.9% | Reduced |
| Alps Advisors Inc | 61,176 | $1.77M | 0.01% | +20,605+50.8% | Added |
| State of Michigan Retirement System | 60,740 | $1.75M | 0.01% | −2,000−3.2% | Reduced |
| Icon Advisers Inc | 60,000 | $1.73M | 0.33% | +60,000 | New |
| Northwestern Mutual Investment Management Company, LLC | 58,379 | $1.69M | 0.02% | −50−0.1% | Reduced |
| New Age Alpha Advisors, LLC | 56,441 | $1.63M | 0.07% | −1,163−2.0% | Reduced |
| Glenmede Trust Co NA | 55,884 | $1.61M | 0.01% | +36,796+192.8% | Added |
| Penserra Capital Management LLC | 55,672 | $1.61M | 0.01% | +55,672 | New |
| Teacher Retirement System of Texas | 55,254 | $1.60M | 0.00% | +11,443+26.1% | Added |
| New Mexico Educational Retirement Board | 54,500 | $1.57M | 0.04% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 53,625 | $1.55M | 0.02% | +100+0.2% | Added |
| CBOE Vest Financial, LLC | 53,612 | $1.55M | 0.02% | +723+1.4% | Added |
| Exchange Traded Concepts, LLC | 51,511 | $1.49M | 0.01% | +2,583+5.3% | Added |
| Tributary Capital Management, LLC | 51,292 | $1.48M | 0.12% | +18,693+57.3% | Added |
| Engineers Gate Manager LP | 50,310 | $1.45M | 0.02% | −18,851−27.3% | Reduced |
| Hillsdale Investment Management Inc. | 48,450 | $1.40M | 0.03% | +15,100+45.3% | Added |
| South Dakota Investment Council | 48,172 | $1.39M | 0.02% | +1,100+2.3% | Added |
| Brevan Howard Capital Management LP | 47,505 | $1.37M | 0.02% | +38,001+399.8% | Added |
| Captrust Financial Advisors | 47,220 | $1.36M | 0.00% | −8,407−15.1% | Reduced |
| Davy Global Fund Management Ltd | 47,210 | $1.36M | 0.09% | +5,723+13.8% | Added |
| Regal Investment Advisors LLC | 45,299 | $1.31M | 0.07% | +16,049+54.9% | Added |
| Pathstone Holdings, LLC | 44,075 | $1.27M | 0.00% | −30,295−40.7% | Reduced |
| Franklin Resources Inc | 42,811 | $1.24M | 0.00% | −18,731−30.4% | Reduced |
| Victory Capital Management Inc | 41,812 | $1.21M | 0.00% | +153+0.4% | Added |
| Advisory Services Network, LLC | 40,936 | $1.18M | 0.01% | +1,819+4.7% | Added |
| Formula Growth Ltd | 39,050 | $1.13M | 0.40% | 00.0% | Unchanged |
| Vancity Investment Management Ltd | 38,372 | $1.11M | 0.17% | +7,146+22.9% | Added |
| Natixis | 37,678 | $1.09M | 0.01% | +37,678 | New |
| O'Shaughnessy Asset Management, LLC | 37,481 | $1.08M | 0.01% | −2,171−5.5% | Reduced |
| Evexia Wealth LLC | 31,923 | $1.08M | 0.29% | +11,808+58.7% | Added |
| Xponance, Inc. | 36,147 | $1.04M | 0.01% | −8,785−19.6% | Reduced |
| Oddo BHF Asset Management SAS | 35,255 | $1.02M | 0.05% | +5,871+20.0% | Added |
| Marshall Wace, LLP | 35,094 | $1.01M | 0.00% | −684,524−95.1% | Reduced |
| Natixis Advisors, L.P. | 34,160 | $986.0K | 0.00% | +6,269+22.5% | Added |
| Group One Trading, L.P. | 33,974 | $981.5K | 0.03% | +28,265+495.1% | Added |
| WCM Investment Management, LLC | 33,914 | $979.4K | 0.00% | −14,751−30.3% | Reduced |
| Atria Investments LLC | 33,401 | $965.0K | 0.01% | −534−1.6% | Reduced |
| Lazard Freres Gestion S.A.S. | 33,330 | $962.0K | 0.02% | +7,500+29.0% | Added |
| New York Life Investment Management LLC | 32,182 | $929.7K | 0.01% | +1,105+3.6% | Added |
| PFG Investments, LLC | 31,137 | $899.6K | 0.03% | +79+0.3% | Added |
| Summit Trail Advisors, LLC | 30,971 | $894.8K | 0.01% | −30,730−49.8% | Reduced |
| D.A. Davidson & Co. | 29,965 | $865.7K | 0.00% | −15−0.1% | Reduced |
| Caxton Associates LLP | 29,865 | $862.8K | 0.02% | −105,948−78.0% | Reduced |
| Kestra Investment Management, LLC | 29,541 | $853.4K | 0.02% | −7,005−19.2% | Reduced |
| Hunter Associates Investment Management LLC | 29,452 | $847.0K | 0.10% | −10,742−26.7% | Reduced |
| Penobscot Investment Management Company, Inc. | 28,785 | $831.6K | 0.06% | −34,245−54.3% | Reduced |
| Natural Investments, LLC | 28,409 | $820.0K | 0.18% | +6,818+31.6% | Added |
| Hunter Perkins Capital Management, LLC | 27,809 | $803.0K | 0.18% | +27,809 | New |
| Inceptionr LLC | 27,391 | $791.3K | 0.19% | +12,055+78.6% | Added |
| Cetera Investment Advisers | 27,388 | $791.2K | 0.00% | −10,070−26.9% | Reduced |
| Ridge Creek Global, Inc | 26,545 | $766.9K | 0.60% | −510−1.9% | Reduced |
| Segall Bryant & Hamill, LLC | 26,267 | $758.9K | 0.01% | −120−0.5% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 26,162 | $755.8K | 0.01% | +15,565+146.9% | Added |
| Public Employees Retirement Association of Colorado | 25,946 | $750.0K | 0.00% | 00.0% | Unchanged |
| Capital Group Investment Management Pte. Ltd. | 25,906 | $748.4K | 0.11% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 25,429 | $734.0K | 0.01% | −673−2.6% | Reduced |
| JustInvest LLC | 25,002 | $722.3K | 0.01% | −6,437−20.5% | Reduced |
| Bailard, Inc. | 24,200 | $699.1K | 0.01% | 00.0% | Unchanged |
| Perigon Wealth Management, LLC | 23,868 | $689.6K | 0.01% | +30+0.1% | Added |
| Harbour Investments, Inc. | 23,475 | $678.2K | 0.01% | −70.0% | Reduced |
| The PNC Financial Services Group, Inc. | 23,348 | $674.5K | 0.00% | −304−1.3% | Reduced |
| CenterBook Partners LP | 23,233 | $671.2K | 0.03% | −22,806−49.5% | Reduced |
| Legacy Wealth Asset Management, LLC | 23,197 | $670.2K | 0.15% | −9,863−29.8% | Reduced |
| Cullen Capital Management LLC | 23,096 | $667.2K | 0.01% | +3,259+16.4% | Added |
| M&T Bank Corp | 23,005 | $664.8K | 0.00% | +587+2.6% | Added |
| Zions Bancorporation, National Association | 23,000 | $664.5K | 0.04% | −25,059−52.1% | Reduced |
| Federated Hermes, Inc. | 22,753 | $657.3K | 0.00% | −8,435−27.0% | Reduced |
| Coldstream Capital Management Inc | 22,625 | $653.6K | 0.01% | +3,073+15.7% | Added |
| State of Wyoming | 22,178 | $640.7K | 0.06% | +1,636+8.0% | Added |
| Baird Financial Group, Inc. | 21,698 | $626.9K | 0.00% | −2,211−9.2% | Reduced |
| CAPROCK Group, Inc. | 21,617 | $624.5K | 0.01% | −9,676−30.9% | Reduced |
| First Wilshire Securities Management Inc | 21,500 | $621.1K | 0.13% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 19,139 | $604.6K | 0.02% | −85−0.4% | Reduced |
| American Century Companies Inc | 20,867 | $602.8K | 0.00% | +2,715+15.0% | Added |
| Impact Partnership Wealth, LLC | 20,832 | $601.8K | 0.06% | +6,378+44.1% | Added |
| Dynamic Advisor Solutions LLC | 20,443 | $590.6K | 0.02% | +1,618+8.6% | Added |
| Truist Financial Corp | 20,096 | $580.6K | 0.00% | +20,096 | New |
| Stifel Financial Corp | 20,074 | $579.9K | 0.00% | −28,879−59.0% | Reduced |
| Graham Capital Management, L.P. | 19,806 | $572.2K | 0.02% | −285−1.4% | Reduced |
| Tower Research Capital LLC (TRC) | 19,617 | $566.7K | 0.01% | +9,816+100.2% | Added |
| Colony Group, LLC | 19,532 | $564.3K | 0.00% | −30,494−61.0% | Reduced |
| Commonwealth Equity Services, LLC | 19,404 | $560.6K | 0.00% | −277−1.4% | Reduced |
| Ausdal Financial Partners, Inc. | 19,165 | $553.7K | 0.02% | +7,255+60.9% | Added |
| First National Advisers, LLC | 18,833 | $544.1K | 0.08% | −2,501−11.7% | Reduced |
| Campbell & CO Investment Adviser LLC | 18,491 | $534.2K | 0.03% | +5,851+46.3% | Added |
| Chicago Partners Investment Group LLC | 17,300 | $528.8K | 0.01% | −1,111−6.0% | Reduced |
| Ballentine Partners, LLC | 18,085 | $522.5K | 0.01% | +3,650+25.3% | Added |
| Qtron Investments LLC | 17,922 | $517.8K | 0.07% | −2,397−11.8% | Reduced |
| First Pacific Financial | 17,615 | $508.9K | 0.06% | −403−2.2% | Reduced |
| AIA Group Ltd | 17,141 | $495.2K | 0.01% | 00.0% | Unchanged |
| First Business Financial Services, Inc. | 16,820 | $485.9K | 0.04% | 00.0% | Unchanged |
| Mitsubishi UFJ Trust & Banking Corp | 16,708 | $482.7K | 0.00% | +16,708 | New |