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 |
|---|---|---|---|---|---|
| Manchester Capital Management LLC | 23,165 | $773.2K | 0.10% | 00.0% | Unchanged |
| Arkadios Wealth Advisors | 23,029 | $768.7K | 0.02% | +782+3.5% | Added |
| Voya Investment Management LLC | 23,021 | $768.4K | 0.00% | −23,507−50.5% | Reduced |
| The PNC Financial Services Group, Inc. | 22,931 | $765.5K | 0.00% | +742+3.3% | Added |
| Elo Mutual Pension Insurance Co | 22,813 | $761.5K | 0.01% | +10,095+79.4% | Added |
| Commonwealth Equity Services, LLC | 22,641 | $756.0K | 0.00% | −881−3.7% | Reduced |
| Cullen Capital Management LLC | 22,441 | $749.1K | 0.01% | 00.0% | Unchanged |
| Scientech Research LLC | 22,362 | $746.4K | 0.26% | +22,362 | New |
| Financiere des Professionnels - Fonds d,investissement inc. | 22,144 | $739.2K | 0.04% | +1,264+6.1% | Added |
| First National Advisers, LLC | 21,666 | $723.2K | 0.10% | +3,847+21.6% | Added |
| First Wilshire Securities Management Inc | 21,500 | $717.7K | 0.19% | 00.0% | Unchanged |
| Man Group plc | 21,227 | $708.6K | 0.00% | −38,169−64.3% | Reduced |
| Quarry LP | 21,123 | $705.1K | 0.17% | +16,258+334.2% | Added |
| Sherbrooke Park Advisers LLC | 20,911 | $698.0K | 0.32% | +20,911 | New |
| Great Lakes Advisors, LLC | 20,140 | $672.3K | 0.01% | +240+1.2% | Added |
| Capstone Investment Advisors, LLC | 20,057 | $669.5K | 0.01% | +20,057 | New |
| M&T Bank Corp | 19,988 | $667.7K | 0.00% | −20,190−50.3% | Reduced |
| Securian Asset Management, Inc | 19,680 | $656.9K | 0.02% | −387−1.9% | Reduced |
| Sanctuary Advisors, LLC | 19,629 | $655.2K | 0.00% | +1,407+7.7% | Added |
| Ballentine Partners, LLC | 19,579 | $653.5K | 0.01% | +1,849+10.4% | Added |
| Squarepoint Ops LLC | 19,401 | $647.6K | 0.00% | +19,401 | New |
| Colony Group, LLC | 19,326 | $644.7K | 0.00% | +6,846+54.9% | Added |
| Evexia Wealth LLC | 18,405 | $636.3K | 0.19% | +65+0.4% | Added |
| US Bancorp | 19,049 | $635.8K | 0.00% | +723+3.9% | Added |
| First Pacific Financial | 18,890 | $630.5K | 0.09% | −665−3.4% | Reduced |
| Evergreen Capital Management LLC | 18,593 | $620.6K | 0.01% | +6,103+48.9% | Added |
| Argent Trust Co | 18,585 | $620.4K | 0.02% | 00.0% | Unchanged |
| Group One Trading, L.P. | 18,471 | $616.6K | 0.02% | +18,471 | New |
| Federation des caisses Desjardins du Quebec | 18,344 | $612.3K | 0.00% | +17,609+2,395.8% | Added |
| Catalytic Wealth RIA, LLC | 18,210 | $607.9K | 0.02% | +18,210 | New |
| Advisor Group Holdings, Inc. | 17,274 | $592.4K | 0.00% | −76−0.4% | Reduced |
| Chicago Partners Investment Group LLC | 18,018 | $587.0K | 0.02% | +6,564+57.3% | Added |
| First Business Financial Services, Inc. | 17,555 | $586.0K | 0.05% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 17,516 | $581.8K | 0.00% | +3,305+23.3% | Added |
| Natixis | 17,166 | $573.0K | 0.00% | +17,166 | New |
| Novem Group | 17,136 | $572.0K | 0.07% | +1,709+11.1% | Added |
| Virginia Retirement Systems Et Al | 16,700 | $557.4K | 0.00% | 00.0% | Unchanged |
| Nwam LLC | 16,461 | $549.5K | 0.03% | −16−0.1% | Reduced |
| Northwestern Mutual Wealth Management Co | 16,405 | $547.6K | 0.00% | −3,000−15.5% | Reduced |
| Kovitz Investment Group Partners, LLC | 16,039 | $535.4K | 0.00% | +10,054+168.0% | Added |
| New Hampshire Trust | 15,765 | $526.2K | 0.10% | 00.0% | Unchanged |
| Midwest Trust Co | 15,765 | $526.2K | 0.01% | 00.0% | Unchanged |
| Ledyard National Bank | 15,557 | $519.3K | 0.05% | −2,620−14.4% | Reduced |
| State of Wyoming | 15,342 | $512.1K | 0.06% | +11,351+284.4% | Added |
| Define Financial, LLC | 15,330 | $511.7K | 0.31% | +27+0.2% | Added |
| Compass Wealth Management LLC | 15,125 | $504.9K | 0.11% | 00.0% | Unchanged |
| WBI Investments | 15,074 | $503.2K | 0.13% | −41,882−73.5% | Reduced |
| Tocqueville Asset Management L.P. | 15,025 | $501.5K | 0.01% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 15,003 | $500.8K | 0.02% | +8,334+125.0% | Added |
| Harbor Capital Advisors, Inc. | 14,271 | $476.0K | 0.04% | −35,179−71.1% | Reduced |
| Snowden Capital Advisors LLC | 14,237 | $475.2K | 0.01% | −436−3.0% | Reduced |
| Baker Avenue Asset Management, LP | 14,178 | $473.3K | 0.01% | +6,289+79.7% | Added |
| Utah Retirement Systems | 14,116 | $471.2K | 0.00% | 00.0% | Unchanged |
| SWP Financial LLC | 14,075 | $469.8K | 0.24% | 00.0% | Unchanged |
| Aster Capital Management (DIFC) Ltd | 13,828 | $461.6K | 0.23% | +9,628+229.2% | Added |
| Perbak Capital Partners LLP | 13,752 | $459.0K | 0.08% | +13,752 | New |
| ELCO Management Co., LLC | 13,697 | $457.2K | 0.24% | −1,563−10.2% | Reduced |
| Trium Capital LLP | 13,672 | $456.4K | 0.18% | +4,188+44.2% | Added |
| HighPoint Advisor Group LLC | 13,565 | $452.8K | 0.02% | +612+4.7% | Added |
| Janney Montgomery Scott LLC | 13,547 | $452.0K | 0.00% | −1,430−9.5% | Reduced |
| Boothbay Fund Management, LLC | 13,374 | $446.4K | 0.01% | +5,209+63.8% | Added |
| Sterling Capital Management LLC | 13,291 | $443.7K | 0.01% | −985−6.9% | Reduced |
| J.W. Cole Advisors, Inc. | 13,044 | $435.4K | 0.01% | −172−1.3% | Reduced |
| Pure Financial Advisors, Inc. | 12,943 | $432.1K | 0.01% | −4,079−24.0% | Reduced |
| AdvisorShares Investments LLC | 12,739 | $425.2K | 0.07% | +12,739 | New |
| Maryland State Retirement & Pension System | 12,454 | $415.7K | 0.01% | 00.0% | Unchanged |
| RSM US Wealth Management LLC | 12,393 | $413.7K | 0.01% | +5,284+74.3% | Added |
| Shelton Capital Management | 12,271 | $409.6K | 0.01% | −268−2.1% | Reduced |
| RWC Asset Management LLP | 12,253 | $409.0K | 0.02% | +322+2.7% | Added |
| Fred Alger Management, LLC | 12,237 | $408.5K | 0.00% | +685+5.9% | Added |
| Cynosure Management, LLC | 12,132 | $405.0K | 0.04% | 00.0% | Unchanged |
| American Century Companies Inc | 12,100 | $403.9K | 0.00% | +260+2.2% | Added |
| Advisory Services Network, LLC | 12,077 | $403.1K | 0.01% | +237+2.0% | Added |
| Aureus Asset Management, LLC | 12,065 | $402.7K | 0.03% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 12,056 | $402.4K | 0.05% | +2,264+23.1% | Added |
| Trust Point Inc. | 12,025 | $401.4K | 0.03% | +2,027+20.3% | Added |
| Virtu Financial LLC | 11,738 | $392.0K | 0.02% | +11,738 | New |
| Hilltop Holdings Inc. | 11,715 | $391.0K | 0.02% | −658−5.3% | Reduced |
| Fieldview Capital Management, LLC | 11,516 | $384.4K | 0.06% | +11,516 | New |
| Groupe la Francaise | 11,500 | $384.2K | 0.01% | 00.0% | Unchanged |
| North Star Asset Management Inc | 11,500 | $383.9K | 0.02% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 11,465 | $382.7K | 0.02% | +586+5.4% | Added |
| Wormser Freres Gestion | 11,444 | $381.9K | 0.21% | +174+1.5% | Added |
| Huntington National Bank | 11,335 | $378.4K | 0.00% | −847−7.0% | Reduced |
| Weiss Asset Management LP | 11,220 | $374.5K | 0.01% | +11,220 | New |
| ProShare Advisors LLC | 11,176 | $373.1K | 0.00% | −508−4.3% | Reduced |
| Rathbone Brothers plc | 11,069 | $369.5K | 0.00% | −15,171−57.8% | Reduced |
| Steward Partners Investment Advisory, LLC | 10,918 | $364.4K | 0.00% | +5,922+118.5% | Added |
| We Are One Seven, LLC | 10,822 | $361.3K | 0.01% | +99+0.9% | Added |
| Dynamic Advisor Solutions LLC | 10,790 | $360.2K | 0.01% | −322−2.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 10,753 | $359.0K | 0.00% | −19,985−65.0% | Reduced |
| Bayforest Capital Ltd | 10,630 | $354.8K | 0.17% | +10,630 | New |
| IFP Advisors, Inc | 10,380 | $346.5K | 0.01% | +424+4.3% | Added |
| NewEdge Wealth, LLC | 10,608 | $345.6K | 0.00% | +2,787+35.6% | Added |
| Diversified Trust Co | 10,326 | $344.7K | 0.01% | +104+1.0% | Added |
| Tower Research Capital LLC (TRC) | 10,269 | $342.8K | 0.01% | −8,071−44.0% | Reduced |
| Holocene Advisors, LP | 10,123 | $337.9K | 0.00% | −60,638−85.7% | Reduced |
| TCG Advisory Services, LLC | 9,841 | $328.5K | 0.01% | +3,880+65.1% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 9,500 | $317.1K | 0.00% | −3,000−24.0% | Reduced |
| HB Wealth Management, LLC | 9,480 | $316.4K | 0.00% | +3,195+50.8% | Added |