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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, Q4 2021

Institutional positions in Tetra Tech Inc as of Dec 31, 2021. 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
401
+47 vs. Q3 2021
Shares held
46.8M
−774.1K (−1.6%) vs. Q3 2021
Total value
$7.93B
+$857.8M (+12.1%) vs. Q3 2021
New holders
71
115 more added
Sold out
24
150 more reduced

5 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: 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 holdersQ4 2021: 401 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 heldQ4 2021: $7.93B
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, Q4 2021

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q3 2021.

Institutions holding TTEK in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
SFE Investment Counsel8,235$1.40M0.36%−490−5.6%Reduced
Susquehanna International Group, LLP8,251$1.40M0.00%+3,246+64.9%Added
Swiss Life Asset Management Ltd8,332$1.42M0.02%+3,759+82.2%Added
EAM Investors, LLC8,458$1.44M0.24%+8,458New
Xponance, Inc.8,560$1.45M0.02%−136−1.6%Reduced
Northwestern Mutual Investment Management Company, LLC8,964$1.52M0.03%+32+0.4%Added
HSBC Holdings PLC8,971$1.52M0.00%+6,444+255.0%Added
Daiwa Securities Group Inc.9,000$1.53M0.01%+9,000New
Ontario Teachers Pension Plan Board9,098$1.54M0.02%+224+2.5%Added
Handelsbanken Fonder AB9,209$1.56M0.01%00.0%Unchanged
Caldwell Investment Management Ltd.9,300$1.57M1.23%+9,300New
Cna Financial Corp9,730$1.65M0.43%−1,870−16.1%Reduced
Shell Asset Management Co9,735$1.65M0.03%+15+0.2%Added
AlphaCrest Capital Management LLC9,943$1.69M0.06%+9,943New
D.A. Davidson & Co.10,000$1.69M0.02%00.0%Unchanged
Federated Hermes, Inc.9,956$1.69M0.00%−1,103−10.0%Reduced
Teacher Retirement System of Texas10,500$1.78M0.01%+1,843+21.3%Added
Janus Henderson Group PLC11,008$1.87M0.00%+5,535+101.1%Added
STRS Ohio11,100$1.88M0.01%+600+5.7%Added
New Mexico Educational Retirement Board11,200$1.90M0.06%00.0%Unchanged
Squarepoint Ops LLC11,337$1.93M0.01%+11,337New
Private Advisor Group, LLC11,516$1.96M0.01%−11,395−49.7%Reduced
Cordatus Wealth Management LLC11,854$2.01M0.59%+733+6.6%Added
Lapides Asset Management, LLC11,900$2.02M0.88%−1,400−10.5%Reduced
Prospera Financial Services Inc12,077$2.05M0.09%+736+6.5%Added
Toronto Dominion Bank12,300$2.09M0.00%+12,300New
Duality Advisers, LP12,415$2.11M0.23%+12,415New
Tortoise Index Solutions, LLC12,614$2.14M0.47%+1,668+15.2%Added
Vident Investment Advisory, LLC12,651$2.15M0.06%+1,705+15.6%Added
Jump Financial, LLC12,958$2.20M0.14%+12,958New
Artemis Investment Management LLP13,677$2.32M0.02%+2,743+25.1%Added
State of Michigan Retirement System13,745$2.33M0.01%+200+1.5%Added
Louisiana State Employees Retirement System13,900$2.36M0.05%+100+0.7%Added
Bank Julius Baer & Co. Ltd, Zurich14,353$2.44M0.01%+8,703+154.0%Added
Thrivent Financial for Lutherans14,533$2.47M0.00%−17,206−54.2%Reduced
Arizona State Retirement System14,553$2.47M0.02%−200−1.4%Reduced
Balyasny Asset Management LLC14,744$2.50M0.01%+10,806+274.4%Added
South Dakota Investment Council14,974$2.54M0.04%−12,100−44.7%Reduced
Staley Capital Advisers Inc15,000$2.55M0.12%00.0%Unchanged
Isthmus Partners, LLC15,135$2.57M0.43%−74−0.5%Reduced
AQR Capital Management LLC15,624$2.63M0.00%−1,021−6.1%Reduced
Van Eck Associates Corp15,553$2.64M0.01%−171−1.1%Reduced
TD Asset Management Inc15,622$2.65M0.00%+7,940+103.4%Added
ExodusPoint Capital Management, LP15,644$2.66M0.03%+15,644New
EFG Asset Management (North America) Corp.15,980$2.71M0.35%+15,980New
Advisor Group Holdings, Inc.16,225$2.76M0.01%−359−2.2%Reduced
Kiwi Wealth Investments Limited Partnership16,374$2.78M0.13%+16,374New
Martingale Asset Management L P16,415$2.79M0.04%−2,362−12.6%Reduced
Marshall Wace, LLP16,796$2.85M0.01%+16,796New
ProShare Advisors LLC16,932$2.87M0.01%+6,059+55.7%Added
Alpine Woods Capital Investors, LLC17,015$2.89M0.29%00.0%Unchanged
Oregon Public Employees Retirement Fund17,578$2.98M0.03%−672−3.7%Reduced
Aviva PLC17,609$2.99M0.01%+6,125+53.3%Added
AtonRa Partners17,770$3.02M1.05%−806−4.3%Reduced
SEI Investments Co17,610$3.04M0.01%+13,005+282.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys17,927$3.04M0.03%+63+0.4%Added
Ensign Peak Advisors, Inc18,431$3.13M0.01%−24,060−56.6%Reduced
Bristlecone Advisors, LLC18,604$3.16M0.38%−538−2.8%Reduced
Marks Group Wealth Management, Inc18,643$3.17M0.39%−28,182−60.2%Reduced
Ameritas Investment Partners, Inc.18,667$3.17M0.11%+134+0.7%Added
Brinker Capital Investments, LLC18,805$3.19M0.05%−1,493−7.4%Reduced
NFJ Investment Group, LLC19,011$3.23M0.06%−2,993−13.6%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)19,151$3.25M0.02%+13,506+239.3%Added
State Board of Administration of Florida Retirement System19,921$3.38M0.01%−126−0.6%Reduced
Aptus Capital Advisors, LLC20,082$3.41M0.12%+3,822+23.5%Added
Comerica Bank26,108$3.54M0.03%+17+0.1%Added
Raymond James & Associates20,864$3.54M0.00%+944+4.7%Added
Sawtooth Solutions, LLC21,002$3.57M0.40%+10,328+96.8%Added
Formula Growth Ltd21,300$3.62M0.64%00.0%Unchanged
Teachers Retirement System of the State of Kentucky21,833$3.71M0.03%00.0%Unchanged
Two Sigma Advisers, LP22,200$3.77M0.01%−2,400−9.8%Reduced
Metropolitan Life Insurance Co22,416$3.81M0.05%−483−2.1%Reduced
Stifel Financial Corp22,474$3.82M0.01%−387−1.7%Reduced
Susquehanna Fundamental Investments, LLC22,545$3.83M0.10%−7,425−24.8%Reduced
Royal Bank of Canada22,618$3.84M0.00%−224,892−90.9%Reduced
Voloridge Investment Management, LLC22,643$3.85M0.02%+22,643New
Nisa Investment Advisors, LLC27,735$3.86M0.03%+100+0.4%Added
Bridge City Capital, LLC23,635$4.01M1.65%+10.0%Added
Kennedy Capital Management, Inc.24,477$4.16M0.09%−852−3.4%Reduced
Voya Investment Management LLC25,132$4.27M0.01%−241−0.9%Reduced
BNP Paribas Arbitrage, SA25,432$4.32M0.01%+8,530+50.5%Added
First Republic Investment Management, Inc.25,883$4.39M0.01%+6,376+32.7%Added
Citigroup Inc26,204$4.45M0.00%+8,736+50.0%Added
PDT Partners, LLC26,221$4.45M0.34%−5,279−16.8%Reduced
Catalyst Capital Advisors LLC26,305$4.47M0.21%00.0%Unchanged
Rice Hall James & Associates, LLC26,662$4.53M0.16%−297−1.1%Reduced
Ashfield Capital Partners, LLC26,905$4.57M0.29%−120.0%Reduced
Great West Life Assurance Co27,661$4.70M0.01%+1,923+7.5%Added
Engineers Gate Manager LP28,056$4.76M0.21%+28,056New
Yousif Capital Management, LLC28,656$4.87M0.05%+28,656New
State of New Jersey Common Pension Fund D29,365$4.99M0.01%+345+1.2%Added
Sumitomo Mitsui DS Asset Management Company, Ltd29,545$5.02M0.10%+2,867+10.7%Added
Prudential Financial Inc29,495$5.02M0.01%−7,057−19.3%Reduced
Calamos Advisors LLC29,588$5.02M0.02%+7,695+35.1%Added
Crown Advisors Management, Inc.30,000$5.09M3.28%−10,000−25.0%Reduced
Franklin Resources Inc32,228$5.47M0.00%−43,637−57.5%Reduced
SG Americas Securities, LLC35,459$6.02M0.04%+31,204+733.3%Added
Man Group plc36,740$6.24M0.02%+2,810+8.3%Added
Sandler Capital Management36,974$6.28M0.79%−18,657−33.5%Reduced
Amalgamated Bank38,493$6.54M0.05%+143+0.4%Added