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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, Q1 2025

Institutional positions in Tetra Tech Inc as of Mar 31, 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
568
−61 vs. Q4 2024
Shares held
245.5M
+9.62M (+4.1%) vs. Q4 2024
Total value
$7.18B
−$2.22B (−23.6%) vs. Q4 2024
New holders
75
231 more added
Sold out
136
192 more reduced

9 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 568 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 heldQ1 2025: $7.18B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q4 2024.

Institutions holding TTEK in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Citigroup Inc112,071$3.28M0.00%−24,634−18.0%Reduced
Scholtz & Company, LLC115,187$3.37M1.67%−70,808−38.1%Reduced
T. Rowe Price Investment Management, Inc.119,505$3.50M0.00%−1,317,099−91.7%Reduced
Mirova120,848$3.53M0.64%−862−0.7%Reduced
Treasurer of the State of North Carolina121,925$3.57M0.01%−22,670−15.7%Reduced
Amalgamated Bank123,464$3.61M0.03%−5,417−4.2%Reduced
Atom Investors LP124,700$3.65M0.45%+70,420+129.7%Added
Crown Advisors Management, Inc.125,000$3.66M3.22%00.0%Unchanged
Blair William & Co125,962$3.68M0.01%−55,932−30.7%Reduced
River Wealth Advisors LLC128,783$3.77M0.52%+4,864+3.9%Added
Nisa Investment Advisors, LLC130,675$3.82M0.02%−2,000−1.5%Reduced
Penobscot Investment Management Company, Inc.131,105$3.83M0.36%−18,895−12.6%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH131,139$3.84M0.01%−166,547−55.9%Reduced
Alpine Woods Capital Investors, LLC134,877$3.95M0.99%−6,125−4.3%Reduced
Stifel Financial Corp135,932$3.98M0.00%+8,762+6.9%Added
Mutual of America Capital Management LLC137,953$4.04M0.05%−3,466−2.5%Reduced
Paradoxiom Capital L.P.140,955$4.12M2.68%+140,955New
Holocene Advisors, LP142,143$4.16M0.01%+142,143New
AQR Capital Management LLC145,077$4.20M0.00%+118,774+451.6%Added
Daiwa Securities Group Inc.144,600$4.23M0.02%−23,900−14.2%Reduced
Cubist Systematic Strategies, LLC149,043$4.36M0.06%−183,444−55.2%Reduced
MetLife Investment Management151,306$4.43M0.02%−2,111−1.4%Reduced
Bank of Montreal152,001$4.45M0.00%+35,021+29.9%Added
S&T Bank153,749$4.50M1.47%−1,849−1.2%Reduced
OP Asset Management Ltd158,613$4.64M0.08%+158,613New
Wexford Capital LP175,000$5.12M1.33%+175,000New
Systematic Financial Management LP179,771$5.26M0.15%−1,448−0.8%Reduced
Raymond James Financial Inc183,417$5.36M0.00%−32,717−15.1%Reduced
Lombard Odier Asset Management (Europe) Ltd185,222$5.42M0.44%−71,722−27.9%Reduced
Campbell & CO Investment Adviser LLC189,021$5.53M0.42%+164,104+658.6%Added
Price T Rowe Associates Inc189,655$5.55M0.00%+14,767+8.4%Added
Kennedy Capital Management, Inc.190,494$5.57M0.13%−131,288−40.8%Reduced
Thematics Asset Management198,750$5.81M0.29%−55,000−21.7%Reduced
Moran Wealth Management, LLC198,893$5.82M0.20%−16,365−7.6%Reduced
CenterBook Partners LP201,986$5.91M0.38%+132,781+191.9%Added
GHP Investment Advisors, Inc.207,351$6.07M0.29%+11,670+6.0%Added
State Board of Administration of Florida Retirement System210,410$6.15M0.01%−664−0.3%Reduced
Bahl & Gaynor Inc210,526$6.16M0.03%−491−0.2%Reduced
Great West Life Assurance Co211,784$6.20M0.01%−17,601−7.7%Reduced
National Bank of Canada212,462$6.21M0.01%+71,223+50.4%Added
Nicholas Company, Inc.214,190$6.27M0.11%+125+0.1%Added
Teacher Retirement System of Texas215,640$6.31M0.03%−1,167,385−84.4%Reduced
Aquatic Capital Management LLC216,038$6.32M0.16%+113,212+110.1%Added
Osprey Private Wealth LLC216,250$6.33M3.75%+45,400+26.6%Added
Manufacturers Life Insurance Company, The218,453$6.39M0.01%−1,485−0.7%Reduced
Dana Investment Advisors, Inc.220,850$6.46M0.23%−5,619−2.5%Reduced
Verition Fund Management LLC221,575$6.48M0.04%+160,771+264.4%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.227,251$6.65M0.02%+76,434+50.7%Added
Skandinaviska Enskilda Banken AB (publ)231,220$6.76M0.03%−64,295−21.8%Reduced
Alberta Investment Management Corp237,198$6.94M0.05%+39,300+19.9%Added
Edgestream Partners, L.P.241,185$7.05M0.24%+241,185New
Mercer Global Advisors Inc244,212$7.14M0.02%+3,252+1.3%Added
Barclays PLC244,538$7.15M0.00%−3,926−1.6%Reduced
Janus Henderson Group PLC247,468$7.21M0.00%+38,795+18.6%Added
New York State Teachers Retirement System248,345$7.26M0.02%−36,300−12.8%Reduced
California State Teachers Retirement System255,898$7.49M0.01%+5,537+2.2%Added
Renaissance Technologies LLC265,000$7.75M0.01%−389,800−59.5%Reduced
Algert Global LLC265,002$7.75M0.19%+85,603+47.7%Added
Asset Management One Co.,Ltd.270,236$7.90M0.03%−37,760−12.3%Reduced
DekaBank Deutsche Girozentrale279,017$7.96M0.02%00.0%Unchanged
Macquarie Group Ltd278,242$8.14M0.01%+5,078+1.9%Added
Renaissance Investment Group LLC292,101$8.54M2.07%−41,407−12.4%Reduced
Corebridge Financial, Inc.296,678$8.68M0.05%−6,900−2.3%Reduced
Perpetual Ltd296,938$8.69M0.10%+81,896+38.1%Added
Duff & Phelps Investment Management Co311,728$9.12M0.11%−171,098−35.4%Reduced
Engineers Gate Manager LP312,316$9.14M0.15%+144,929+86.6%Added
Kames Capital plc343,250$10.0M0.15%−884,482−72.0%Reduced
Van Eck Associates Corp344,815$10.1M0.01%+55,355+19.1%Added
Ninety One North America, Inc.365,726$10.7M0.72%+93,013+34.1%Added
State of Wisconsin Investment Board369,493$10.8M0.03%+27,591+8.1%Added
Voloridge Investment Management, LLC373,021$10.9M0.04%+373,021New
Retirement Systems of Alabama376,998$11.0M0.04%+710+0.2%Added
Quantinno Capital Management LP378,259$11.1M0.07%+284,332+302.7%Added
SEI Investments Co394,323$11.5M0.01%−123,763−23.9%Reduced
HSBC Holdings PLC401,504$11.7M0.01%−55,554−12.2%Reduced
Williams Jones Wealth Management, LLC.404,187$11.8M0.15%−18,040−4.3%Reduced
iA Global Asset Management Inc.416,789$12.2M0.21%+416,789New
Toroso Investments, LLC429,548$12.6M0.11%−3,383−0.8%Reduced
FMR LLC432,816$12.7M0.00%−807,842−65.1%Reduced
Trillium Asset Management, LLC435,984$12.8M0.37%−80,547−15.6%Reduced
Winslow Asset Management Inc439,559$12.9M2.84%+8,659+2.0%Added
Legal & General Group Plc440,392$12.9M0.00%+11,738+2.7%Added
Squarepoint Ops LLC444,176$13.0M0.03%+254,729+134.5%Added
Candriam Luxembourg S.C.A.456,675$13.4M0.08%−321,405−41.3%Reduced
one8zero8, LLC470,520$13.8M3.25%+19,220+4.3%Added
Federated Hermes, Inc.470,826$13.8M0.03%+45,939+10.8%Added
California Public Employees Retirement System484,564$14.2M0.01%−23,210−4.6%Reduced
PGGM Investments490,333$14.3M0.19%+331,473+208.7%Added
Two Sigma Advisers, LP496,200$14.5M0.03%+310,500+167.2%Added
Man Group plc507,162$14.8M0.04%−79,253−13.5%Reduced
Balyasny Asset Management LLC513,488$15.0M0.04%+432,380+533.1%Added
Swiss National Bank519,200$15.2M0.01%−7,300−1.4%Reduced
J. Safra Sarasin Holding AG520,758$15.2M0.28%−246,943−32.2%Reduced
Russell Investments Group, Ltd.532,520$15.6M0.02%−12,854−2.4%Reduced
Arrowstreet Capital, Limited Partnership535,674$15.7M0.01%+193,037+56.3%Added
Neumeier Poma Investment Counsel LLC549,921$16.1M1.73%−153,915−21.9%Reduced
LPL Financial LLC573,013$16.7M0.01%−27,974−4.7%Reduced
Robeco Institutional Asset Management B.V.582,409$17.0M0.03%+2,125+0.4%Added
Principal Financial Group Inc621,677$18.2M0.01%+1,960+0.3%Added
D. E. Shaw & Co., Inc.666,692$19.5M0.02%+666,692New