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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 2025

Institutional positions in Tetra Tech Inc as of Jun 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
590
+29 vs. Q1 2025
Shares held
249.4M
+4.09M (+1.7%) vs. Q1 2025
Total value
$8.94B
+$1.76B (+24.6%) vs. Q1 2025
New holders
106
210 more added
Sold out
77
202 more reduced

7 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2025: 590 institutions
Q1 2021: 365 institutionsQ2 2021: 366 institutionsQ3 2021: 359 institutionsQ4 2021: 401 institutionsQ1 2022: 404 institutionsQ2 2022: 415 institutionsQ3 2022: 412 institutionsQ4 2022: 470 institutionsQ1 2023: 445 institutionsQ2 2023: 455 institutionsQ3 2023: 471 institutionsQ4 2023: 510 institutionsQ1 2024: 512 institutionsQ2 2024: 600 institutionsQ3 2024: 646 institutionsQ4 2024: 638 institutionsQ1 2025: 568 institutionsQ2 2025: 590 institutionsQ3 2025: 597 institutionsQ4 2025: 611 institutionsQ1 2026: 593 institutionsQ2 2026: 555 institutions
Value heldQ2 2025: $8.94B
Q1 2021: $6.39BQ2 2021: $5.68BQ3 2021: $7.08BQ4 2021: $7.93BQ1 2022: $7.86BQ2 2022: $6.31BQ3 2022: $5.91BQ4 2022: $6.68BQ1 2023: $6.81BQ2 2023: $7.67BQ3 2023: $7.09BQ4 2023: $7.87BQ1 2024: $8.66BQ2 2024: $9.88BQ3 2024: $11.2BQ4 2024: $9.45BQ1 2025: $7.18BQ2 2025: $8.94BQ3 2025: $8.22BQ4 2025: $8.10BQ1 2026: $7.35BQ2 2026: $7.32B
Institutions holding TTEK and their total value by quarter
QuarterHoldersValue
Q2 2026555$7.32B
Q1 2026593$7.35B
Q4 2025611$8.10B
Q3 2025597$8.22B
Q2 2025590$8.94B
Q1 2025568$7.18B
Q4 2024638$9.45B
Q3 2024646$11.2B
Q2 2024600$9.88B
Q1 2024512$8.66B
Q4 2023510$7.87B
Q3 2023471$7.09B
Q2 2023455$7.67B
Q1 2023445$6.81B
Q4 2022470$6.68B
Q3 2022412$5.91B
Q2 2022415$6.31B
Q1 2022404$7.86B
Q4 2021401$7.93B
Q3 2021359$7.08B
Q2 2021366$5.68B
Q1 2021365$6.39B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q1 2025.

Institutions holding TTEK in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
State of Wisconsin Investment Board316,874$11.4M0.03%−52,619−14.2%Reduced
Thematics Asset Management315,750$11.4M0.51%+117,000+58.9%Added
Kingdon Capital Management, L.L.C.315,000$11.3M2.19%+315,000New
Duff & Phelps Investment Management Co311,728$11.2M0.13%00.0%Unchanged
Edgestream Partners, L.P.309,242$11.1M0.31%+68,057+28.2%Added
Van Eck Associates Corp305,284$11.0M0.01%−39,531−11.5%Reduced
Williams Jones Wealth Management, LLC.304,804$11.0M0.13%−99,383−24.6%Reduced
Perpetual Ltd297,978$10.7M0.13%+1,040+0.4%Added
Renaissance Investment Group LLC292,645$10.5M2.28%+544+0.2%Added
Los Angeles Capital Management LLC286,146$10.3M0.04%+286,146New
Algert Global LLC276,649$9.95M0.21%+11,647+4.4%Added
Macquarie Group Ltd275,059$9.89M0.01%−3,183−1.1%Reduced
DekaBank Deutsche Girozentrale279,017$9.89M0.02%00.0%Unchanged
Rheos Capital Works Inc.269,000$9.67M0.56%−415,000−60.7%Reduced
Skandinaviska Enskilda Banken AB (publ)268,738$9.66M0.04%+37,518+16.2%Added
AQR Capital Management LLC264,828$9.44M0.01%+119,751+82.5%Added
New York State Teachers Retirement System248,345$8.93M0.02%00.0%Unchanged
Mercer Global Advisors Inc246,232$8.85M0.02%+2,020+0.8%Added
California State Teachers Retirement System238,569$8.58M0.01%−17,329−6.8%Reduced
Barclays PLC232,942$8.38M0.00%−11,596−4.7%Reduced
Blair William & Co232,374$8.36M0.02%+106,412+84.5%Added
Asset Management One Co.,Ltd.230,428$8.28M0.03%−39,808−14.7%Reduced
Aquatic Capital Management LLC228,259$8.21M0.17%+12,221+5.7%Added
Osprey Private Wealth LLC218,800$8.01M4.36%+2,550+1.2%Added
GHP Investment Advisors, Inc.221,022$7.95M0.35%+13,671+6.6%Added
Dana Investment Advisors, Inc.217,366$7.82M0.26%−3,484−1.6%Reduced
Bahl & Gaynor Inc215,018$7.73M0.04%+4,492+2.1%Added
Nicholas Company, Inc.214,190$7.70M0.13%00.0%Unchanged
Federated Hermes, Inc.212,559$7.64M0.01%−258,267−54.9%Reduced
State Board of Administration of Florida Retirement System211,930$7.62M0.01%+1,520+0.7%Added
CenterBook Partners LP206,542$7.43M0.41%+4,556+2.3%Added
La Banque Postale Asset Management SA205,011$7.37M0.10%+139,899+214.9%Added
Manufacturers Life Insurance Company, The203,818$7.33M0.01%−14,635−6.7%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.203,670$7.32M0.02%−23,581−10.4%Reduced
Great West Life Assurance Co201,080$7.23M0.01%−10,704−5.1%Reduced
OP Asset Management Ltd189,606$6.82M0.10%+30,993+19.5%Added
Moran Wealth Management, LLC184,294$6.63M0.21%−14,599−7.3%Reduced
Systematic Financial Management LP182,416$6.56M0.18%+2,645+1.5%Added
Raymond James Financial Inc177,942$6.40M0.00%−5,475−3.0%Reduced
Twin Tree Management, LP176,028$6.33M0.16%+176,028New
Verition Fund Management LLC174,202$6.26M0.04%−47,373−21.4%Reduced
Winton Group Ltd169,026$6.08M0.31%+169,026New
ExodusPoint Capital Management, LP159,102$5.72M0.07%+159,102New
National Bank of Canada158,688$5.71M0.01%−53,774−25.3%Reduced
Alpine Woods Capital Investors, LLC150,598$5.42M1.29%+15,721+11.7%Added
Citigroup Inc150,016$5.39M0.00%+37,945+33.9%Added
S&T Bank149,379$5.37M1.63%−4,370−2.8%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH145,421$5.23M0.01%+14,282+10.9%Added
Lombard Odier Asset Management (Europe) Ltd145,323$5.23M0.37%−39,899−21.5%Reduced
Mirova144,829$5.21M0.73%+23,981+19.8%Added
HRT Financial LP144,823$5.21M0.02%+144,823New
Daiwa Securities Group Inc.144,600$5.20M0.02%00.0%Unchanged
MetLife Investment Management144,208$5.19M0.03%−7,098−4.7%Reduced
River Wealth Advisors LLC143,571$5.16M0.64%+14,788+11.5%Added
Mutual of America Capital Management LLC131,042$4.71M0.05%−6,911−5.0%Reduced
Kennedy Capital Management, Inc.130,789$4.70M0.11%−59,705−31.3%Reduced
Nisa Investment Advisors, LLC130,744$4.70M0.02%+69+0.1%Added
Stifel Financial Corp128,539$4.62M0.00%−7,393−5.4%Reduced
Creative Planning125,834$4.52M0.00%+29,292+30.3%Added
Crown Advisors Management, Inc.125,000$4.50M3.58%00.0%Unchanged
Treasurer of the State of North Carolina124,744$4.49M0.01%+2,819+2.3%Added
Amalgamated Bank121,714$4.38M0.03%−1,750−1.4%Reduced
Penobscot Investment Management Company, Inc.121,355$4.36M0.37%−9,750−7.4%Reduced
Icon Advisers Inc114,000$4.10M0.94%+14,000+14.0%Added
Advisors Asset Management, Inc.113,660$4.09M0.07%+6,107+5.7%Added
Scholtz & Company, LLC111,053$3.99M1.75%−4,134−3.6%Reduced
T. Rowe Price Investment Management, Inc.110,687$3.98M0.00%−8,818−7.4%Reduced
Swiss Life Asset Management Ltd110,669$3.98M0.02%+75,019+210.4%Added
State of Tennessee, Treasury Department108,032$3.88M0.01%00.0%Unchanged
Waratah Capital Advisors Ltd.107,734$3.87M0.26%+107,734New
Janus Henderson Group PLC107,225$3.85M0.00%−140,243−56.7%Reduced
Isthmus Partners, LLC106,981$3.85M0.45%+54+0.1%Added
South Dakota Investment Council104,770$3.77M0.07%−3,300−3.1%Reduced
Union Bancaire Privee, UBP SA103,649$3.74M0.06%+1,397+1.4%Added
AlpenGlobal Capital LLC103,379$3.72M2.23%+6,899+7.2%Added
Rice Hall James & Associates, LLC102,998$3.70M0.20%−154−0.1%Reduced
Police & Firemen's Retirement System of New Jersey101,446$3.65M0.03%+4,671+4.8%Added
Connor, Clark & Lunn Investment Management Ltd.100,528$3.61M0.01%+100,528New
Gotham Asset Management, LLC98,798$3.55M0.02%+47,420+92.3%Added
Two Sigma Investments, LP98,211$3.53M0.01%−888,726−90.0%Reduced
VELA Investment Management, LLC96,363$3.47M1.03%+23,632+32.5%Added
Pathstone Holdings, LLC94,447$3.40M0.01%−14,224−13.1%Reduced
Zions Bancorporation, National Association93,697$3.37M0.18%−465−0.5%Reduced
AIA Group Ltd91,992$3.31M0.07%+91,992New
Zacks Investment Management91,350$3.28M0.03%+91,350New
Comerica Bank90,414$3.25M0.01%−5,684−5.9%Reduced
Yousif Capital Management, LLC90,292$3.25M0.03%−3,090−3.3%Reduced
HighTower Advisors, LLC89,332$3.21M0.00%−21,494−19.4%Reduced
UniSuper Management Pty Ltd87,232$3.14M0.02%+66,558+321.9%Added
State of New Jersey Common Pension Fund D87,129$3.13M0.01%−5,988−6.4%Reduced
Public Employees Retirement System of Ohio85,136$3.06M0.01%+897+1.1%Added
Agf Management Ltd84,222$3.03M0.01%−5,680−6.3%Reduced
SFE Investment Counsel81,856$2.94M0.52%−2,585−3.1%Reduced
Oddo BHF Asset Management SAS79,940$2.87M0.11%00.0%Unchanged
Teachers Retirement System of the State of Kentucky79,425$2.86M0.02%00.0%Unchanged
D'Orazio & Associates, Inc.79,274$2.85M0.40%−1,236−1.5%Reduced
Staley Capital Advisers Inc78,011$2.81M0.12%+835+1.1%Added
Relyea Zuckerberg Hanson LLC77,632$2.79M0.33%−330.0%Reduced
Engineers Gate Manager LP77,473$2.79M0.03%−234,843−75.2%Reduced
Commerce Bank76,924$2.77M0.02%−16,882−18.0%Reduced