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TTEK

Tetra Tech Inc
$30.79 -0.14 (-0.45%) At close · Jul 8
Market Cap
$7.94B
Shares
259,524,699

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 590
Total Value: $6,994,423,371
Total Shares: 232,250,978
Showing 1–100 of 602 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Superinvestors Holding TTEK

All superinvestors →
Ray Dalio $6,444,023 Joel Greenblatt $5,874,183

Holder Concentration

Across 589 13F filers
Top Holder
11.5%
Jun 2023 → Mar 2026 · range 10.6% – 11.7%
of institutional value
Top 5
29.8%
Jun 2023 → Mar 2026 · range 29.8% – 38.8%
of institutional value
Top 10
42.2%
Jun 2023 → Mar 2026 · range 42.2% – 50.8%
of institutional value
HHI
290
Jun 2023 → Mar 2026 · range 290 – 420
Broadly held
Showing 100 of 602
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $806,927,019 11.54% 26,790,406
Mega VANGUARD CAPITAL MANAGEMENT LLC $352,679,628 5.04% 11,709,151
Mega Capital International Investors $342,924,242 4.90% 11,385,267
Large Pictet Asset Management Holding SA $290,501,135 4.15% 9,644,792
Mega STATE STREET CORP $290,233,669 4.15% 9,635,912
Mega NEUBERGER BERMAN GROUP LLC $218,962,068 3.13% 7,269,657
Large SANDS CAPITAL MANAGEMENT, LLC $200,563,748 2.87% 6,658,823
Mega GEODE CAPITAL MANAGEMENT, LLC $157,149,533 2.25% 5,217,448
Mega FIL Ltd $145,560,079 2.08% 4,832,672
Mega WELLINGTON MANAGEMENT GROUP LLP $144,697,952 2.07% 4,804,049
Mega Amundi $143,047,317 2.05% 4,749,247
Large Impax Asset Management Group plc $115,361,828 1.65% 3,830,074
Mega DIMENSIONAL FUND ADVISORS LP $114,131,906 1.63% 3,789,240
Mid FERNBRIDGE CAPITAL MANAGEMENT LP $102,431,343 1.46% 3,400,775
Large FULLER & THALER ASSET MANAGEMENT, INC. $99,831,023 1.43% 3,314,443
Mid LGT Group Foundation Endowment $95,230,644 1.36% 3,161,708
Mega Invesco Ltd. $88,399,185 1.26% 2,934,900
Mega ALLIANCEBERNSTEIN L.P. $84,560,845 1.21% 2,807,465
Large Ninety One UK Ltd $82,279,436 1.18% 2,731,721
Mega FIRST TRUST ADVISORS LP $73,657,917 1.05% 2,445,482
Mega Bank of New York Mellon Corp Bank $70,740,939 1.01% 2,348,637
Mega NORTHERN TRUST CORP Bank $69,887,764 1.00% 2,320,311
Large M&G PLC $69,834,244 1.00% 2,318,534
Mid Robeco Schweiz AG $68,891,970 0.98% 2,287,250
Mid Van Berkom & Associates Inc. $68,847,934 0.98% 2,285,788
Mega MORGAN STANLEY $67,453,853 0.96% 2,239,504
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $67,386,180 0.96% 2,237,257
Mega AMERIPRISE FINANCIAL INC $60,870,259 0.87% 2,020,925
Large AVIVA PLC $58,035,065 0.83% 1,926,795
Mega GOLDMAN SACHS GROUP INC $58,031,240 0.83% 1,926,668
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $57,790,671 0.83% 1,918,681
Large KING LUTHER CAPITAL MANAGEMENT CORP $53,778,205 0.77% 1,785,465
Mega CITADEL ADVISORS LLC $52,436,238 0.75% 1,740,911
Mega DEUTSCHE BANK AG\ Bank $52,218,921 0.75% 1,733,696
Large Allianz Asset Management GmbH $52,108,743 0.75% 1,730,038
Mega VANGUARD FIDUCIARY TRUST CO Bank $49,045,721 0.70% 1,628,344
Large Quantinno Capital Management LP $46,721,421 0.67% 1,551,176
Mega AQR CAPITAL MANAGEMENT LLC $45,615,593 0.65% 1,514,462
Large BESSEMER GROUP INC $43,131,985 0.62% 1,432,005
Large Aberdeen Group plc $42,837,054 0.61% 1,422,213
Large Corient Private Wealth LLC $41,861,468 0.60% 1,389,823
Mega BANK OF AMERICA CORP /DE/ Bank $41,298,612 0.59% 1,371,136
Mid NEUMEIER POMA INVESTMENT COUNSEL LLC $39,273,859 0.56% 1,303,913
Mid PGGM Investments $37,766,172 0.54% 1,253,857
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $34,585,858 0.49% 1,148,269
Mega Capital Research Global Investors $33,205,794 0.47% 1,102,450
Mega JANUS HENDERSON GROUP PLC $31,019,171 0.44% 1,029,853
Mid L1 Capital International Pty Ltd $28,799,719 0.41% 956,166
Mega Nuveen, LLC $28,204,486 0.40% 936,404
Mega JPMORGAN CHASE & CO $27,557,024 0.39% 914,908
Mega Legal & General Group Plc $27,522,750 0.39% 913,770
Small VALUE HOLDINGS MANAGEMENT CO. LLC $27,328,629 0.39% 907,325
Small MANAGED ASSET PORTFOLIOS, LLC $26,712,193 0.38% 886,859
Mega WELLS FARGO & COMPANY/MN $26,529,573 0.38% 880,796
Large NOMURA ASSET MANAGEMENT CO LTD $26,516,954 0.38% 880,377
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $26,047,444 0.37% 864,789
Mega ROYAL BANK OF CANADA Bank $25,434,651 0.36% 844,444
Mid Premier Fund Managers Ltd $24,264,340 0.35% 805,589
Large MARSHALL WACE, LLP $21,674,893 0.31% 719,618
Mega RHUMBLINE ADVISERS $21,498,662 0.31% 713,767
Large Robeco Institutional Asset Management B.V. $21,298,725 0.30% 707,129
Mega BNP PARIBAS ARBITRAGE, SA $20,939,544 0.30% 695,204
Mid Portman Square Capital LLP $20,647,260 0.30% 685,500
Mega UBS Group AG $19,477,729 0.28% 646,671
Large Rockefeller Capital Management L.P. $18,871,172 0.27% 626,533
Mega Fisher Asset Management, LLC $18,451,572 0.26% 612,602
Mid MIROVA $18,425,066 0.26% 611,722
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $18,152,360 0.26% 602,668
Mid TRILLIUM ASSET MANAGEMENT, LLC $18,083,596 0.26% 600,385
Large BANK OF NOVA SCOTIA Bank $17,754,354 0.25% 589,454
Mega PRICE T ROWE ASSOCIATES INC /MD/ $17,603,995 0.25% 584,462
Mega PRINCIPAL FINANCIAL GROUP INC $17,567,549 0.25% 583,252
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $16,369,195 0.23% 543,466
Large Point72 Asset Management, L.P. $16,333,082 0.23% 542,267
Mega California Public Employees Retirement System Pension $15,007,139 0.21% 498,245
Mega Swiss National Bank Bank $14,788,920 0.21% 491,000
Large Retirement Systems of Alabama Pension $14,445,672 0.21% 479,604
Large CI INVESTMENTS INC. $13,911,072 0.20% 461,855
Large RENAISSANCE TECHNOLOGIES LLC $13,662,432 0.20% 453,600
Mid Sarasin & Partners LLP $13,662,138 0.20% 472,902
Small one8zero8, LLC $13,598,336 0.19% 451,472
Mega BARCLAYS PLC $13,373,188 0.19% 443,997
Large SG Americas Securities, LLC Broker-Dealer $13,107,471 0.19% 435,175
Large Balyasny Asset Management L.P. $13,086,266 0.19% 434,471
Small WINSLOW ASSET MANAGEMENT INC $13,028,044 0.19% 432,538
Mega HSBC HOLDINGS PLC $12,980,876 0.19% 430,972
Mega ENVESTNET ASSET MANAGEMENT INC $12,658,592 0.18% 420,272
Large Handelsbanken Fonder AB $12,613,503 0.18% 418,775
Large Squarepoint Ops LLC $12,570,371 0.18% 417,343
Mid Ninety One North America, Inc. $12,444,047 0.18% 413,149
Small NICOLA WEALTH MANAGEMENT LTD. $12,379,320 0.18% 411,000
Mid iA Global Asset Management Inc. $11,732,071 0.17% 389,511
Large Tidal Investments LLC $11,574,694 0.17% 384,286
Large SEB Asset Management AB $11,265,482 0.16% 374,020
Mid Perpetual Ltd $11,204,790 0.16% 372,005
Mid Copeland Capital Management, LLC $11,020,425 0.16% 365,884
Small Osprey Private Wealth LLC $10,946,059 0.16% 363,415
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $10,717,298 0.15% 355,820
Large Connor, Clark & Lunn Investment Management Ltd. $10,514,199 0.15% 349,077
Mega VAN ECK ASSOCIATES CORP $10,450,826 0.15% 346,973
Key facts CIK 831641 CUSIP 88162G103 13F (30d) 15 filings 14 filers Visit website Investor relations

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