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, Q3 2025
Institutional positions in Tetra Tech Inc as of Sep 30, 2025. 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
- 597
- +14 vs. Q2 2025
- Shares held
- 246.3M
- −56.3K (0.0%) vs. Q2 2025
- Total value
- $8.22B
- −$607.6M (−6.9%) vs. Q2 2025
- New holders
- 74
- 231 more added
- Sold out
- 60
- 202 more reduced
7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Holocene Advisors, LP | 10,123 | $337.9K | 0.00% | −60,638−85.7% | Reduced |
| Tower Research Capital LLC (TRC) | 10,269 | $342.8K | 0.01% | −8,071−44.0% | Reduced |
| Diversified Trust Co | 10,326 | $344.7K | 0.01% | +104+1.0% | Added |
| NewEdge Wealth, LLC | 10,608 | $345.6K | 0.00% | +2,787+35.6% | Added |
| IFP Advisors, Inc | 10,380 | $346.5K | 0.01% | +424+4.3% | Added |
| Bayforest Capital Ltd | 10,630 | $354.8K | 0.17% | +10,630 | New |
| Cambridge Investment Research Advisors, Inc. | 10,753 | $359.0K | 0.00% | −19,985−65.0% | Reduced |
| Dynamic Advisor Solutions LLC | 10,790 | $360.2K | 0.01% | −322−2.9% | Reduced |
| We Are One Seven, LLC | 10,822 | $361.3K | 0.01% | +99+0.9% | Added |
| Steward Partners Investment Advisory, LLC | 10,918 | $364.4K | 0.00% | +5,922+118.5% | Added |
| Rathbone Brothers plc | 11,069 | $369.5K | 0.00% | −15,171−57.8% | Reduced |
| ProShare Advisors LLC | 11,176 | $373.1K | 0.00% | −508−4.3% | Reduced |
| Weiss Asset Management LP | 11,220 | $374.5K | 0.01% | +11,220 | New |
| Huntington National Bank | 11,335 | $378.4K | 0.00% | −847−7.0% | Reduced |
| Wormser Freres Gestion | 11,444 | $381.9K | 0.21% | +174+1.5% | Added |
| Wetherby Asset Management Inc | 11,465 | $382.7K | 0.02% | +586+5.4% | Added |
| North Star Asset Management Inc | 11,500 | $383.9K | 0.02% | 00.0% | Unchanged |
| Groupe la Francaise | 11,500 | $384.2K | 0.01% | 00.0% | Unchanged |
| Fieldview Capital Management, LLC | 11,516 | $384.4K | 0.06% | +11,516 | New |
| Hilltop Holdings Inc. | 11,715 | $391.0K | 0.02% | −658−5.3% | Reduced |
| Virtu Financial LLC | 11,738 | $392.0K | 0.02% | +11,738 | New |
| Trust Point Inc. | 12,025 | $401.4K | 0.03% | +2,027+20.3% | Added |
| Versant Capital Management, Inc | 12,056 | $402.4K | 0.05% | +2,264+23.1% | Added |
| Aureus Asset Management, LLC | 12,065 | $402.7K | 0.03% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 12,077 | $403.1K | 0.01% | +237+2.0% | Added |
| American Century Companies Inc | 12,100 | $403.9K | 0.00% | +260+2.2% | Added |
| Cynosure Management, LLC | 12,132 | $405.0K | 0.04% | 00.0% | Unchanged |
| Fred Alger Management, LLC | 12,237 | $408.5K | 0.00% | +685+5.9% | Added |
| RWC Asset Management LLP | 12,253 | $409.0K | 0.02% | +322+2.7% | Added |
| Shelton Capital Management | 12,271 | $409.6K | 0.01% | −268−2.1% | Reduced |
| RSM US Wealth Management LLC | 12,393 | $413.7K | 0.01% | +5,284+74.3% | Added |
| Maryland State Retirement & Pension System | 12,454 | $415.7K | 0.01% | 00.0% | Unchanged |
| AdvisorShares Investments LLC | 12,739 | $425.2K | 0.07% | +12,739 | New |
| Pure Financial Advisors, Inc. | 12,943 | $432.1K | 0.01% | −4,079−24.0% | Reduced |
| J.W. Cole Advisors, Inc. | 13,044 | $435.4K | 0.01% | −172−1.3% | Reduced |
| Sterling Capital Management LLC | 13,291 | $443.7K | 0.01% | −985−6.9% | Reduced |
| Boothbay Fund Management, LLC | 13,374 | $446.4K | 0.01% | +5,209+63.8% | Added |
| Janney Montgomery Scott LLC | 13,547 | $452.0K | 0.00% | −1,430−9.5% | Reduced |
| HighPoint Advisor Group LLC | 13,565 | $452.8K | 0.02% | +612+4.7% | Added |
| Trium Capital LLP | 13,672 | $456.4K | 0.18% | +4,188+44.2% | Added |
| ELCO Management Co., LLC | 13,697 | $457.2K | 0.24% | −1,563−10.2% | Reduced |
| Perbak Capital Partners LLP | 13,752 | $459.0K | 0.08% | +13,752 | New |
| Aster Capital Management (DIFC) Ltd | 13,828 | $461.6K | 0.23% | +9,628+229.2% | Added |
| SWP Financial LLC | 14,075 | $469.8K | 0.24% | 00.0% | Unchanged |
| Utah Retirement Systems | 14,116 | $471.2K | 0.00% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 14,178 | $473.3K | 0.01% | +6,289+79.7% | Added |
| Snowden Capital Advisors LLC | 14,237 | $475.2K | 0.01% | −436−3.0% | Reduced |
| Harbor Capital Advisors, Inc. | 14,271 | $476.0K | 0.04% | −35,179−71.1% | Reduced |
| Graham Capital Management, L.P. | 15,003 | $500.8K | 0.02% | +8,334+125.0% | Added |
| Tocqueville Asset Management L.P. | 15,025 | $501.5K | 0.01% | 00.0% | Unchanged |
| WBI Investments | 15,074 | $503.2K | 0.13% | −41,882−73.5% | Reduced |
| Compass Wealth Management LLC | 15,125 | $504.9K | 0.11% | 00.0% | Unchanged |
| Define Financial, LLC | 15,330 | $511.7K | 0.31% | +27+0.2% | Added |
| State of Wyoming | 15,342 | $512.1K | 0.06% | +11,351+284.4% | Added |
| Ledyard National Bank | 15,557 | $519.3K | 0.05% | −2,620−14.4% | Reduced |
| New Hampshire Trust | 15,765 | $526.2K | 0.10% | 00.0% | Unchanged |
| Midwest Trust Co | 15,765 | $526.2K | 0.01% | 00.0% | Unchanged |
| Kovitz Investment Group Partners, LLC | 16,039 | $535.4K | 0.00% | +10,054+168.0% | Added |
| Northwestern Mutual Wealth Management Co | 16,405 | $547.6K | 0.00% | −3,000−15.5% | Reduced |
| Nwam LLC | 16,461 | $549.5K | 0.03% | −16−0.1% | Reduced |
| Virginia Retirement Systems Et Al | 16,700 | $557.4K | 0.00% | 00.0% | Unchanged |
| Novem Group | 17,136 | $572.0K | 0.07% | +1,709+11.1% | Added |
| Natixis | 17,166 | $573.0K | 0.00% | +17,166 | New |
| Wiley Bros.-Aintree Capital, LLC | 17,516 | $581.8K | 0.00% | +3,305+23.3% | Added |
| First Business Financial Services, Inc. | 17,555 | $586.0K | 0.05% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 18,018 | $587.0K | 0.02% | +6,564+57.3% | Added |
| Advisor Group Holdings, Inc. | 17,274 | $592.4K | 0.00% | −76−0.4% | Reduced |
| Catalytic Wealth RIA, LLC | 18,210 | $607.9K | 0.02% | +18,210 | New |
| Federation des caisses Desjardins du Quebec | 18,344 | $612.3K | 0.00% | +17,609+2,395.8% | Added |
| Group One Trading, L.P. | 18,471 | $616.6K | 0.02% | +18,471 | New |
| Argent Trust Co | 18,585 | $620.4K | 0.02% | 00.0% | Unchanged |
| Evergreen Capital Management LLC | 18,593 | $620.6K | 0.01% | +6,103+48.9% | Added |
| First Pacific Financial | 18,890 | $630.5K | 0.09% | −665−3.4% | Reduced |
| US Bancorp | 19,049 | $635.8K | 0.00% | +723+3.9% | Added |
| Evexia Wealth LLC | 18,405 | $636.3K | 0.19% | +65+0.4% | Added |
| Colony Group, LLC | 19,326 | $644.7K | 0.00% | +6,846+54.9% | Added |
| Squarepoint Ops LLC | 19,401 | $647.6K | 0.00% | +19,401 | New |
| Ballentine Partners, LLC | 19,579 | $653.5K | 0.01% | +1,849+10.4% | Added |
| Sanctuary Advisors, LLC | 19,629 | $655.2K | 0.00% | +1,407+7.7% | Added |
| Securian Asset Management, Inc | 19,680 | $656.9K | 0.02% | −387−1.9% | Reduced |
| M&T Bank Corp | 19,988 | $667.7K | 0.00% | −20,190−50.3% | Reduced |
| Capstone Investment Advisors, LLC | 20,057 | $669.5K | 0.01% | +20,057 | New |
| Great Lakes Advisors, LLC | 20,140 | $672.3K | 0.01% | +240+1.2% | Added |
| Sherbrooke Park Advisers LLC | 20,911 | $698.0K | 0.32% | +20,911 | New |
| Quarry LP | 21,123 | $705.1K | 0.17% | +16,258+334.2% | Added |
| Man Group plc | 21,227 | $708.6K | 0.00% | −38,169−64.3% | Reduced |
| First Wilshire Securities Management Inc | 21,500 | $717.7K | 0.19% | 00.0% | Unchanged |
| First National Advisers, LLC | 21,666 | $723.2K | 0.10% | +3,847+21.6% | Added |
| Financiere des Professionnels - Fonds d,investissement inc. | 22,144 | $739.2K | 0.04% | +1,264+6.1% | Added |
| Scientech Research LLC | 22,362 | $746.4K | 0.26% | +22,362 | New |
| Cullen Capital Management LLC | 22,441 | $749.1K | 0.01% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 22,641 | $756.0K | 0.00% | −881−3.7% | Reduced |
| Elo Mutual Pension Insurance Co | 22,813 | $761.5K | 0.01% | +10,095+79.4% | Added |
| The PNC Financial Services Group, Inc. | 22,931 | $765.5K | 0.00% | +742+3.3% | Added |
| Voya Investment Management LLC | 23,021 | $768.4K | 0.00% | −23,507−50.5% | Reduced |
| Arkadios Wealth Advisors | 23,029 | $768.7K | 0.02% | +782+3.5% | Added |
| Manchester Capital Management LLC | 23,165 | $773.2K | 0.10% | 00.0% | Unchanged |
| Sciencast Management LP | 23,390 | $780.8K | 0.15% | −42,804−64.7% | Reduced |
| Harbour Investments, Inc. | 23,466 | $783.3K | 0.02% | −192−0.8% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 23,484 | $783.9K | 0.02% | +3,666+18.5% | Added |