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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 28,675,276 | $828.4M | 0.01% | +1,884,870+7.0% | Added |
| Vanguard Portfolio Management LLC | 12,467,970 | $360.2M | 0.02% | −175,124−1.4% | Reduced |
| Vanguard Capital Management LLC | 11,725,738 | $338.8M | 0.01% | +16,587+0.1% | Added |
| Capital International Investors | 11,651,238 | $336.6M | 0.07% | +265,971+2.3% | Added |
| State Street Corp | 9,761,640 | $282.0M | 0.01% | +125,728+1.3% | Added |
| FMR LLC | 8,768,611 | $253.3M | 0.01% | +8,440,359+2,571.3% | Added |
| Geode Capital Management, LLC | 6,833,071 | $197.4M | 0.01% | +1,615,623+31.0% | Added |
| FIL Ltd | 5,471,691 | $158.1M | 0.11% | +639,019+13.2% | Added |
| Amundi | 5,098,519 | $147.3M | 0.04% | +349,272+7.4% | Added |
| Fuller & Thaler Asset Management, Inc. | 4,921,268 | $142.2M | 0.39% | +1,606,825+48.5% | Added |
| Pictet Asset Management Holding SA | 4,759,290 | $137.5M | 0.13% | −4,885,502−50.7% | Reduced |
| Wellington Management Group LLP | 4,674,089 | $135.0M | 0.02% | −129,960−2.7% | Reduced |
| Dimensional Fund Advisors LP | 4,446,215 | $128.5M | 0.02% | +656,975+17.3% | Added |
| Neuberger Berman Group LLC | 4,408,987 | $127.4M | 0.08% | −2,860,670−39.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 4,393,728 | $126.9M | 0.06% | +3,850,262+708.5% | Added |
| Invesco Ltd. | 4,116,893 | $118.9M | 0.01% | +1,181,993+40.3% | Added |
| AQR Capital Management LLC | 4,111,603 | $117.1M | 0.04% | +2,597,141+171.5% | Added |
| Impax Asset Management Group plc | 3,931,741 | $113.6M | 0.74% | +101,667+2.7% | Added |
| LGT Group Foundation | 3,745,171 | $108.2M | 1.22% | +583,463+18.5% | Added |
| Norges Bank | 3,230,988 | $93.3M | 0.01% | +3,230,988 | New |
| Robeco Schweiz AG | 3,099,250 | $89.5M | 1.44% | +812,000+35.5% | Added |
| M&G Plc | 2,776,344 | $80.5M | 0.40% | +457,810+19.7% | Added |
| Ameriprise Financial Inc | 2,729,762 | $78.9M | 0.02% | +708,837+35.1% | Added |
| Goldman Sachs Group Inc | 2,647,910 | $76.5M | 0.01% | +721,242+37.4% | Added |
| First Trust Advisors LP | 2,561,572 | $74.0M | 0.04% | +116,090+4.7% | Added |
| Van Berkom & Associates Inc. | 2,469,392 | $71.3M | 2.30% | +183,604+8.0% | Added |
| Energy Income Partners, LLC | 2,371,465 | $68.5M | 1.08% | +2,371,465 | New |
| Ninety One UK Ltd | 2,365,261 | $68.3M | 0.15% | −366,460−13.4% | Reduced |
| Charles Schwab Investment Management Inc | 2,286,390 | $66.1M | 0.01% | +49,133+2.2% | Added |
| Northern Trust Corp | 2,245,716 | $64.9M | 0.01% | −74,595−3.2% | Reduced |
| Bank of New York Mellon Corp | 2,101,030 | $60.7M | 0.01% | −247,607−10.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 2,081,631 | $60.1M | 0.07% | +162,950+8.5% | Added |
| Bank of America Corp | 1,977,679 | $57.1M | 0.00% | +606,543+44.2% | Added |
| Allianz Asset Management GmbH | 1,976,969 | $57.1M | 0.05% | +246,931+14.3% | Added |
| Morgan Stanley | 1,966,257 | $56.8M | 0.00% | −273,247−12.2% | Reduced |
| PGGM Investments | 1,874,895 | $54.2M | 1.33% | +621,038+49.5% | Added |
| UBS Group AG | 1,867,963 | $54.0M | 0.01% | +1,221,292+188.9% | Added |
| Aviva PLC | 1,842,517 | $53.2M | 0.08% | −84,278−4.4% | Reduced |
| Cooke & Bieler LP | 1,785,403 | $51.6M | 0.60% | +1,785,403 | New |
| Vanguard Fiduciary Trust Co | 1,643,323 | $47.5M | 0.01% | +14,979+0.9% | Added |
| Deutsche Bank AG | 1,558,916 | $45.0M | 0.01% | −174,780−10.1% | Reduced |
| CI Private Wealth, LLC | 1,554,196 | $44.9M | 0.06% | +164,373+11.8% | Added |
| Neumeier Poma Investment Counsel LLC | 1,514,378 | $43.8M | 3.00% | +210,465+16.1% | Added |
| Managed Asset Portfolios, LLC | 1,321,714 | $38.2M | 4.36% | +434,855+49.0% | Added |
| Citadel Advisors LLC | 1,287,534 | $37.2M | 0.02% | −453,377−26.0% | Reduced |
| JPMorgan Chase & Co | 1,136,843 | $33.1M | 0.00% | +221,935+24.3% | Added |
| UBS Asset Management Americas Inc | 1,106,392 | $32.0M | 0.01% | −41,877−3.6% | Reduced |
| Quantinno Capital Management LP | 1,103,758 | $31.9M | 0.04% | −447,418−28.8% | Reduced |
| Standard Life Aberdeen plc | 1,068,968 | $30.9M | 0.04% | −353,245−24.8% | Reduced |
| Capital Research Global Investors | 1,020,653 | $29.5M | 0.00% | −81,797−7.4% | Reduced |
| Point72 Asset Management, L.P. | 1,011,149 | $29.2M | 0.04% | +468,882+86.5% | Added |
| Nuveen, LLC | 967,569 | $28.0M | 0.01% | +31,165+3.3% | Added |
| Nomura Asset Management Co Ltd | 954,294 | $27.6M | 0.06% | +73,917+8.4% | Added |
| Legal & General Group Plc | 945,909 | $27.3M | 0.01% | +32,139+3.5% | Added |
| L1 Capital International Pty Ltd | 925,433 | $26.7M | 1.57% | −30,733−3.2% | Reduced |
| Pacer Advisors, Inc. | 910,227 | $26.3M | 0.07% | +838,184+1,163.4% | Added |
| Value Holdings Management Co. LLC | 907,325 | $26.2M | 4.38% | 00.0% | Unchanged |
| Royal Bank of Canada | 887,837 | $25.6M | 0.00% | +43,393+5.1% | Added |
| Wells Fargo & Company | 841,158 | $24.3M | 0.00% | −39,638−4.5% | Reduced |
| BNP Paribas Arbitrage, SA | 833,747 | $24.1M | 0.01% | +138,543+19.9% | Added |
| Price T Rowe Associates Inc | 767,634 | $22.2M | 0.00% | +183,172+31.3% | Added |
| Robeco Institutional Asset Management B.V. | 743,831 | $21.5M | 0.03% | +36,702+5.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 712,884 | $20.6M | 0.04% | +110,216+18.3% | Added |
| Gotham Asset Management, LLC | 708,634 | $20.5M | 0.05% | +513,608+263.4% | Added |
| Rhumbline Advisers | 693,805 | $20.0M | 0.02% | −19,962−2.8% | Reduced |
| Mirova | 669,611 | $19.3M | 0.71% | +57,889+9.5% | Added |
| Trillium Asset Management, LLC | 647,910 | $18.7M | 0.58% | +47,525+7.9% | Added |
| Fisher Asset Management, LLC | 647,795 | $18.7M | 0.01% | +35,193+5.7% | Added |
| Squarepoint Ops LLC | 641,945 | $18.5M | 0.04% | +224,602+53.8% | Added |
| Bank of Nova Scotia | 629,088 | $18.2M | 0.03% | +39,634+6.7% | Added |
| HSBC Holdings PLC | 628,625 | $18.0M | 0.01% | +197,653+45.9% | Added |
| Bridgewater Associates, LP | 608,211 | $17.6M | 0.07% | +394,266+184.3% | Added |
| Principal Financial Group Inc | 589,240 | $17.0M | 0.01% | +5,988+1.0% | Added |
| Schroder Investment Management Group | 578,614 | $16.7M | 0.01% | −286,175−33.1% | Reduced |
| King Luther Capital Management Corp | 569,160 | $16.4M | 0.07% | −1,216,305−68.1% | Reduced |
| California Public Employees Retirement System | 528,661 | $15.3M | 0.01% | +30,416+6.1% | Added |
| HRT Financial LP | 502,154 | $14.5M | 0.03% | +502,154 | New |
| Swiss National Bank | 497,200 | $14.4M | 0.01% | +6,200+1.3% | Added |
| Ninety One North America, Inc. | 485,767 | $14.0M | 0.66% | +72,618+17.6% | Added |
| Systematic Financial Management LP | 481,101 | $13.9M | 0.28% | +194,450+67.8% | Added |
| Sarasin & Partners LLP | 472,902 | $13.7M | 0.16% | +36,732+8.4% | Added |
| Balyasny Asset Management LLC | 456,640 | $13.2M | 0.02% | +22,169+5.1% | Added |
| SG Americas Securities, LLC | 451,073 | $13.0M | 0.01% | +15,898+3.7% | Added |
| Handelsbanken Fonder AB | 449,922 | $13.0M | 0.04% | +31,147+7.4% | Added |
| Barclays PLC | 440,903 | $12.7M | 0.00% | −3,094−0.7% | Reduced |
| one8zero8, LLC | 440,672 | $12.7M | 2.52% | −10,800−2.4% | Reduced |
| Winslow Asset Management Inc | 437,305 | $12.6M | 2.20% | +4,767+1.1% | Added |
| Retirement Systems of Alabama | 428,289 | $12.4M | 0.04% | −51,315−10.7% | Reduced |
| Perpetual Ltd | 426,947 | $12.3M | 0.18% | +54,942+14.8% | Added |
| Voloridge Investment Management, LLC | 419,712 | $12.1M | 0.05% | +63,892+18.0% | Added |
| Algert Global LLC | 415,099 | $12.0M | 0.14% | +212,990+105.4% | Added |
| Nicola Wealth Management Ltd. | 411,000 | $11.9M | 1.37% | 00.0% | Unchanged |
| Premier Fund Managers Ltd | 408,394 | $11.8M | 1.07% | −397,195−49.3% | Reduced |
| Mackenzie Financial Corp | 401,964 | $11.6M | 0.01% | +271,653+208.5% | Added |
| Envestnet Asset Management Inc | 373,426 | $10.8M | 0.00% | −46,846−11.1% | Reduced |
| Osprey Private Wealth LLC | 363,295 | $10.5M | 2.71% | −1200.0% | Reduced |
| Van Eck Associates Corp | 352,058 | $10.2M | 0.01% | +5,085+1.5% | Added |
| Alliancebernstein L.P. | 335,361 | $10.1M | 0.00% | −2,472,104−88.1% | Reduced |
| Intech Investment Management LLC | 334,455 | $9.66M | 0.09% | +24,944+8.1% | Added |
| Canada Pension Plan Investment Board | 319,600 | $9.23M | 0.01% | +159,400+99.5% | Added |