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 |
|---|---|---|---|---|---|
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 900 | $26.0K | 0.00% | 00.0% | Unchanged |
| Asset Planning,Inc | 1,000 | $28.9K | 0.02% | 00.0% | Unchanged |
| Weiss Asset Management LP | 1,071 | $30.9K | 0.00% | −158,327−99.3% | Reduced |
| Baillie Gifford & Co | 1,114 | $32.2K | 0.00% | −312,451−99.6% | Reduced |
| Versant Capital Management, Inc | 1,121 | $32.4K | 0.00% | −9,449−89.4% | Reduced |
| OP Asset Management Ltd | 1,134 | $32.8K | 0.00% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 1,143 | $33.0K | 0.00% | −2,734−70.5% | Reduced |
| Evelyn Partners Group Ltd | 1,155 | $33.4K | 0.00% | +1,155 | New |
| Signaturefd, LLC | 1,206 | $34.8K | 0.00% | −3,483−74.3% | Reduced |
| HM Payson & Co | 1,250 | $36.1K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 1,270 | $37.0K | 0.00% | −20−1.6% | Reduced |
| EverSource Wealth Advisors, LLC | 1,313 | $37.9K | 0.00% | −95−6.7% | Reduced |
| Bryn Mawr Trust Co | 1,701 | $49.1K | 0.00% | +70+4.3% | Added |
| International Assets Investment Management, LLC | 1,806 | $52.7K | 0.00% | +4+0.2% | Added |
| Central Trust Co | 1,875 | $54.2K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 1,895 | $54.7K | 0.00% | +18+1.0% | Added |
| SBI Securities Co., Ltd. | 1,904 | $55.0K | 0.00% | +1,800+1,730.8% | Added |
| Larson Financial Group LLC | 1,917 | $55.4K | 0.00% | −170−8.1% | Reduced |
| Harvest Fund Management Co., Ltd | 1,932 | $56.0K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 1,962 | $56.7K | 0.00% | −2,837−59.1% | Reduced |
| Whittier Trust Co | 1,915 | $59.7K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 2,292 | $66.2K | 0.00% | −2,620−53.3% | Reduced |
| Leonteq Securities AG | 2,349 | $67.9K | 0.00% | −322−12.1% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 2,403 | $69.4K | 0.00% | −45,241−95.0% | Reduced |
| Essential Partners LLC | 2,411 | $69.7K | 0.03% | +2,376+6,788.6% | Added |
| Clearstead Advisors, LLC | 2,441 | $70.5K | 0.00% | +366+17.6% | Added |
| Globeflex Capital L P | 2,500 | $72.2K | 0.01% | 00.0% | Unchanged |
| Monetary Management Group Inc | 2,500 | $72.2K | 0.01% | 00.0% | Unchanged |
| Employees Retirement System of Texas | 2,738 | $79.0K | 0.00% | +2,738 | New |
| CVA Family Office, LLC | 2,753 | $79.5K | 0.01% | +281+11.4% | Added |
| Palladiem, LLC | 2,950 | $85.2K | 0.08% | 00.0% | Unchanged |
| GAMMA Investing LLC | 3,501 | $101.1K | 0.00% | −3,083−46.8% | Reduced |
| Jones Financial Companies LLLP | 3,520 | $103.0K | 0.00% | +141+4.2% | Added |
| Albion Financial Group | 3,625 | $104.7K | 0.01% | 00.0% | Unchanged |
| Eurizon Capital SGR S.p.A. | 3,729 | $107.8K | 0.00% | 00.0% | Unchanged |
| Compagnie Lombard Odier SCmA | 3,800 | $109.8K | 0.00% | 00.0% | Unchanged |
| Horizon Investments, LLC | 4,404 | $127.0K | 0.00% | +680+18.3% | Added |
| Vestcor Inc | 4,699 | $136.0K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 4,789 | $138.4K | 0.00% | −1,572−24.7% | Reduced |
| Spire Wealth Management | 5,375 | $155.3K | 0.00% | +4,223+366.6% | Added |
| Allworth Financial LP | 5,645 | $163.1K | 0.00% | +2,048+56.9% | Added |
| Nykredit A/S | 5,871 | $169.6K | 0.00% | +5,871 | New |
| Hantz Financial Services, Inc. | 6,046 | $175.0K | 0.00% | +1,254+26.2% | Added |
| Vestmark Advisory Solutions, Inc. | 6,930 | $200.2K | 0.00% | +6,930 | New |
| Bayesian Capital Management, LP | 6,934 | $200.3K | 0.13% | +6,934 | New |
| Brighton Jones LLC | 6,951 | $200.8K | 0.00% | +6,951 | New |
| Lazard Asset Management LLC | 7,068 | $204.2K | 0.00% | −28,150−79.9% | Reduced |
| Global Retirement Partners, LLC | 7,109 | $205.4K | 0.00% | +7,109 | New |
| Fiduciary Trust Co | 7,225 | $208.7K | 0.00% | 00.0% | Unchanged |
| Pinnacle Financial Partners, Inc. | 7,260 | $209.7K | 0.00% | −45−0.6% | Reduced |
| Everence Capital Management Inc | 7,313 | $211.0K | 0.01% | −747−9.3% | Reduced |
| Mirabella Financial Services LLP | 7,359 | $212.6K | 0.02% | −6,495−46.9% | Reduced |
| AlphaCore Capital LLC | 7,372 | $213.0K | 0.00% | +7,372 | New |
| New England Professional Planning Group Inc. | 7,415 | $214.2K | 0.08% | 00.0% | Unchanged |
| Ground Swell Capital, LLC | 7,451 | $215.3K | 0.23% | +7,451 | New |
| Philadelphia Trust Co | 7,500 | $217.0K | 0.01% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 7,518 | $217.2K | 0.00% | +1,812+31.8% | Added |
| Krilogy Financial LLC | 7,522 | $217.3K | 0.01% | +7,522 | New |
| Umb Bank N A | 7,582 | $219.0K | 0.00% | −747−9.0% | Reduced |
| Kestra Advisory Services, LLC | 7,647 | $220.9K | 0.00% | +50+0.7% | Added |
| North Dakota State Investment Board | 7,727 | $223.2K | 0.01% | +52+0.7% | Added |
| Aaron Wealth Advisors | 7,751 | $223.9K | 0.01% | −1,430−15.6% | Reduced |
| Sterling Capital Management LLC | 7,821 | $225.9K | 0.00% | +377+5.1% | Added |
| Claret Asset Management Corp | 7,813 | $226.0K | 0.02% | +7,813 | New |
| KBC Group NV | 7,936 | $229.0K | 0.00% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 8,066 | $233.0K | 0.00% | −422−5.0% | Reduced |
| STRS Ohio | 8,143 | $235.3K | 0.00% | +1,928+31.0% | Added |
| Cambridge Investment Research Advisors, Inc. | 8,248 | $238.0K | 0.00% | −2,493−23.2% | Reduced |
| Rathbone Brothers plc | 8,250 | $238.3K | 0.00% | −4,099−33.2% | Reduced |
| D. E. Shaw & Co., Inc. | 8,286 | $239.4K | 0.00% | +8,286 | New |
| Mariner, LLC | 8,291 | $239.6K | 0.00% | −3,349−28.8% | Reduced |
| Resources Investment Advisors, LLC. | 8,399 | $242.7K | 0.00% | +8,399 | New |
| Jane Street Group, LLC | 8,401 | $242.7K | 0.00% | −198,405−95.9% | Reduced |
| TD Private Client Wealth LLC | 8,476 | $244.9K | 0.00% | +2,340+38.1% | Added |
| Shelton Capital Management | 8,767 | $253.3K | 0.00% | 00.0% | Unchanged |
| Bridgefront Capital, LLC | 8,784 | $253.8K | 0.07% | −39,687−81.9% | Reduced |
| Kera Capital Partners, Inc. | 8,790 | $253.9K | 0.02% | −2,742−23.8% | Reduced |
| MQS Management LLC | 8,827 | $255.0K | 0.31% | +8,827 | New |
| Sanctuary Advisors, LLC | 8,941 | $258.3K | 0.00% | +130+1.5% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 8,974 | $259.3K | 0.00% | −6,954−43.7% | Reduced |
| Merit Financial Group, LLC | 8,975 | $259.3K | 0.00% | −808−8.3% | Reduced |
| Marex Group plc | 9,100 | $262.9K | 0.00% | +1,574+20.9% | Added |
| Abacus Wealth Partners, LLC | 9,405 | $271.7K | 0.03% | −6,495−40.8% | Reduced |
| Y.D. More Investments Ltd | 9,457 | $273.2K | 0.01% | +9,457 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 9,500 | $274.5K | 0.00% | 00.0% | Unchanged |
| Modern Wealth Management, LLC | 9,529 | $275.3K | 0.00% | +2,982+45.5% | Added |
| Dakota Wealth Management | 9,656 | $279.0K | 0.01% | −9−0.1% | Reduced |
| Malaga Cove Capital, LLC | 9,713 | $280.6K | 0.09% | −728−7.0% | Reduced |
| National Bank of Canada | 9,939 | $286.9K | 0.00% | −1,205−10.8% | Reduced |
| IMC-Chicago, LLC | 10,023 | $289.6K | 0.00% | −13,717−57.8% | Reduced |
| Savant Capital, LLC | 9,734 | $290.7K | 0.00% | +9,734 | New |
| Baker Avenue Asset Management, LP | 10,096 | $291.7K | 0.01% | −2,069−17.0% | Reduced |
| Vise Technologies, Inc. | 10,185 | $294.2K | 0.00% | +3,621+55.2% | Added |
| Huntington National Bank | 10,235 | $295.7K | 0.00% | −76−0.7% | Reduced |
| ProShare Advisors LLC | 10,236 | $295.7K | 0.00% | −225−2.2% | Reduced |
| Steward Partners Investment Advisory, LLC | 10,523 | $304.0K | 0.00% | −2,524−19.3% | Reduced |
| Laird Norton Trust Company, LLC | 10,548 | $304.7K | 0.01% | −1,660−13.6% | Reduced |
| Jain Global LLC | 10,580 | $305.7K | 0.00% | +10,580 | New |
| MML Investors Services, LLC | 10,822 | $312.7K | 0.00% | −213−1.9% | Reduced |
| HB Wealth Management, LLC | 10,998 | $317.7K | 0.00% | +2,225+25.4% | Added |