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 |
|---|---|---|---|---|---|
| L1 Capital International Pty Ltd | 925,433 | $26.7M | 1.57% | −30,733−3.2% | Reduced |
| Legal & General Group Plc | 945,909 | $27.3M | 0.01% | +32,139+3.5% | Added |
| Nomura Asset Management Co Ltd | 954,294 | $27.6M | 0.06% | +73,917+8.4% | Added |
| Nuveen, LLC | 967,569 | $28.0M | 0.01% | +31,165+3.3% | Added |
| Point72 Asset Management, L.P. | 1,011,149 | $29.2M | 0.04% | +468,882+86.5% | Added |
| Capital Research Global Investors | 1,020,653 | $29.5M | 0.00% | −81,797−7.4% | Reduced |
| Standard Life Aberdeen plc | 1,068,968 | $30.9M | 0.04% | −353,245−24.8% | Reduced |
| Quantinno Capital Management LP | 1,103,758 | $31.9M | 0.04% | −447,418−28.8% | Reduced |
| UBS Asset Management Americas Inc | 1,106,392 | $32.0M | 0.01% | −41,877−3.6% | Reduced |
| JPMorgan Chase & Co | 1,136,843 | $33.1M | 0.00% | +221,935+24.3% | Added |
| Citadel Advisors LLC | 1,287,534 | $37.2M | 0.02% | −453,377−26.0% | Reduced |
| Managed Asset Portfolios, LLC | 1,321,714 | $38.2M | 4.36% | +434,855+49.0% | Added |
| Neumeier Poma Investment Counsel LLC | 1,514,378 | $43.8M | 3.00% | +210,465+16.1% | Added |
| CI Private Wealth, LLC | 1,554,196 | $44.9M | 0.06% | +164,373+11.8% | Added |
| Deutsche Bank AG | 1,558,916 | $45.0M | 0.01% | −174,780−10.1% | Reduced |
| Vanguard Fiduciary Trust Co | 1,643,323 | $47.5M | 0.01% | +14,979+0.9% | Added |
| Cooke & Bieler LP | 1,785,403 | $51.6M | 0.60% | +1,785,403 | New |
| Aviva PLC | 1,842,517 | $53.2M | 0.08% | −84,278−4.4% | Reduced |
| UBS Group AG | 1,867,963 | $54.0M | 0.01% | +1,221,292+188.9% | Added |
| PGGM Investments | 1,874,895 | $54.2M | 1.33% | +621,038+49.5% | Added |
| Morgan Stanley | 1,966,257 | $56.8M | 0.00% | −273,247−12.2% | Reduced |
| Allianz Asset Management GmbH | 1,976,969 | $57.1M | 0.05% | +246,931+14.3% | Added |
| Bank of America Corp | 1,977,679 | $57.1M | 0.00% | +606,543+44.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 2,081,631 | $60.1M | 0.07% | +162,950+8.5% | Added |
| Bank of New York Mellon Corp | 2,101,030 | $60.7M | 0.01% | −247,607−10.5% | Reduced |
| Northern Trust Corp | 2,245,716 | $64.9M | 0.01% | −74,595−3.2% | Reduced |
| Charles Schwab Investment Management Inc | 2,286,390 | $66.1M | 0.01% | +49,133+2.2% | Added |
| Ninety One UK Ltd | 2,365,261 | $68.3M | 0.15% | −366,460−13.4% | Reduced |
| Energy Income Partners, LLC | 2,371,465 | $68.5M | 1.08% | +2,371,465 | New |
| Van Berkom & Associates Inc. | 2,469,392 | $71.3M | 2.30% | +183,604+8.0% | Added |
| First Trust Advisors LP | 2,561,572 | $74.0M | 0.04% | +116,090+4.7% | Added |
| Goldman Sachs Group Inc | 2,647,910 | $76.5M | 0.01% | +721,242+37.4% | Added |
| Ameriprise Financial Inc | 2,729,762 | $78.9M | 0.02% | +708,837+35.1% | Added |
| M&G Plc | 2,776,344 | $80.5M | 0.40% | +457,810+19.7% | Added |
| Robeco Schweiz AG | 3,099,250 | $89.5M | 1.44% | +812,000+35.5% | Added |
| Norges Bank | 3,230,988 | $93.3M | 0.01% | +3,230,988 | New |
| LGT Group Foundation | 3,745,171 | $108.2M | 1.22% | +583,463+18.5% | Added |
| Impax Asset Management Group plc | 3,931,741 | $113.6M | 0.74% | +101,667+2.7% | Added |
| AQR Capital Management LLC | 4,111,603 | $117.1M | 0.04% | +2,597,141+171.5% | Added |
| Invesco Ltd. | 4,116,893 | $118.9M | 0.01% | +1,181,993+40.3% | Added |
| Arrowstreet Capital, Limited Partnership | 4,393,728 | $126.9M | 0.06% | +3,850,262+708.5% | Added |
| Neuberger Berman Group LLC | 4,408,987 | $127.4M | 0.08% | −2,860,670−39.4% | Reduced |
| Dimensional Fund Advisors LP | 4,446,215 | $128.5M | 0.02% | +656,975+17.3% | Added |
| Wellington Management Group LLP | 4,674,089 | $135.0M | 0.02% | −129,960−2.7% | Reduced |
| Pictet Asset Management Holding SA | 4,759,290 | $137.5M | 0.13% | −4,885,502−50.7% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 4,921,268 | $142.2M | 0.39% | +1,606,825+48.5% | Added |
| Amundi | 5,098,519 | $147.3M | 0.04% | +349,272+7.4% | Added |
| FIL Ltd | 5,471,691 | $158.1M | 0.11% | +639,019+13.2% | Added |
| Geode Capital Management, LLC | 6,833,071 | $197.4M | 0.01% | +1,615,623+31.0% | Added |
| FMR LLC | 8,768,611 | $253.3M | 0.01% | +8,440,359+2,571.3% | Added |
| State Street Corp | 9,761,640 | $282.0M | 0.01% | +125,728+1.3% | Added |
| Capital International Investors | 11,651,238 | $336.6M | 0.07% | +265,971+2.3% | Added |
| Vanguard Capital Management LLC | 11,725,738 | $338.8M | 0.01% | +16,587+0.1% | Added |
| Vanguard Portfolio Management LLC | 12,467,970 | $360.2M | 0.02% | −175,124−1.4% | Reduced |
| BlackRock, Inc. | 28,675,276 | $828.4M | 0.01% | +1,884,870+7.0% | Added |
| Sands Capital Management, LLC | 0 | $0 | 0.00% | −6,658,823−100.0% | Sold out |
| Fernbridge Capital Management LP | 0 | $0 | 0.00% | −3,400,775−100.0% | Sold out |
| Ci Investments Inc. | 0 | $0 | 0.00% | −461,855−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −453,600−100.0% | Sold out |
| iA Global Asset Management Inc. | 0 | $0 | 0.00% | −389,511−100.0% | Sold out |
| SEB Asset Management AB | 0 | $0 | 0.00% | −374,020−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −349,077−100.0% | Sold out |
| Caisse de Depot Et Placement du Quebec | 0 | $0 | 0.00% | −181,185−100.0% | Sold out |
| Night Squared LP | 0 | $0 | 0.00% | −174,738−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −121,937−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −117,586−100.0% | Sold out |
| Agf Management Ltd | 0 | $0 | 0.00% | −100,841−100.0% | Sold out |
| Kingdon Capital Management, L.L.C. | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Taproot Management LP | 0 | $0 | 0.00% | −89,364−100.0% | Sold out |
| Lombard Odier Asset Management (Europe) Ltd | 0 | $0 | 0.00% | −86,962−100.0% | Sold out |
| Alpine Woods Capital Investors, LLC | 0 | $0 | 0.00% | −84,047−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −75,758−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −63,778−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −55,578−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −54,966−100.0% | Sold out |
| Northwest & Ethical Investments L.P. | 0 | $0 | 0.00% | −44,382−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −42,307−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −32,500−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −29,413−100.0% | Sold out |
| Equitable Trust Co | 0 | $0 | 0.00% | −27,886−100.0% | Sold out |
| Inscription Capital, LLC | 0 | $0 | 0.00% | −27,426−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −24,900−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −24,611−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −24,442−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −24,206−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −21,589−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −16,994−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −16,255−100.0% | Sold out |
| Triglav Skladi, D.O.O. | 0 | $0 | 0.00% | −15,364−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −14,747−100.0% | Sold out |
| AdvisorShares Investments LLC | 0 | $0 | 0.00% | −13,856−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −13,658−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −13,566−100.0% | Sold out |
| Optas, LLC | 0 | $0 | 0.00% | −12,803−100.0% | Sold out |
| Nomura Holdings Inc | 0 | $0 | 0.00% | −11,647−100.0% | Sold out |
| Argent Trust Co | 0 | $0 | 0.00% | −11,051−100.0% | Sold out |
| Trust Point Inc. | 0 | $0 | 0.00% | −10,961−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −10,161−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −10,061−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −9,938−100.0% | Sold out |