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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, Q3 2024

Institutional positions in Tetra Tech Inc as of Sep 30, 2024. 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
646
+53 vs. Q2 2024
Shares held
238.2M
+22.3M (+10.3%) vs. Q2 2024Converted for a 5-for-1 split
Total value
$11.2B
+$2.43B (+27.7%) vs. Q2 2024
New holders
95
189 more added
Sold out
42
234 more reduced

7 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2024: 646 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 heldQ3 2024: $11.2B
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, Q3 2024

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q2 2024.

Institutions holding TTEK in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Wellington Management Group LLP1,077,828$50.8M0.01%−79,892−6.9%ReducedConverted for a 5-for-1 split
Voya Investment Management LLC1,080,889$51.0M0.05%−36,736−3.3%ReducedConverted for a 5-for-1 split
FMR LLC1,122,513$52.9M0.00%+339,088+43.3%AddedConverted for a 5-for-1 split
Rockefeller Capital Management L.P.1,138,716$53.7M0.14%−85,729−7.0%ReducedConverted for a 5-for-1 split
Nuveen Asset Management, LLC1,195,521$56.4M0.02%+95,296+8.7%AddedConverted for a 5-for-1 split
LGT Group Foundation1,222,150$57.3M0.94%−1,235,070−50.3%ReducedConverted for a 5-for-1 split
Candriam Luxembourg S.C.A.1,332,593$62.8M0.36%−61,732−4.4%ReducedConverted for a 5-for-1 split
WCM Investment Management, LLC1,431,099$66.4M0.15%−285,301−16.6%ReducedConverted for a 5-for-1 split
Vontobel Holding Ltd.1,425,589$67.2M0.22%+26,334+1.9%AddedConverted for a 5-for-1 split
Kames Capital plc1,466,385$69.1M0.94%−211,330−12.6%ReducedConverted for a 5-for-1 split
Premier Fund Managers Ltd1,500,000$69.6M2.47%00.0%UnchangedConverted for a 5-for-1 split
J. Safra Sarasin Holding AG1,491,666$70.3M1.22%+220,456+17.3%AddedConverted for a 5-for-1 split
Zurcher Kantonalbank (Zurich Cantonalbank)1,517,711$71.6M0.21%+1,135,076+296.6%AddedConverted for a 5-for-1 split
JPMorgan Chase & Co1,551,351$73.2M0.01%+41,356+2.7%AddedConverted for a 5-for-1 split
Mirae Asset Global ETFs Holdings Ltd.1,731,729$81.7M0.18%+36,424+2.1%AddedConverted for a 5-for-1 split
Driehaus Capital Management LLC1,808,113$85.3M0.73%+127,813+7.6%AddedConverted for a 5-for-1 split
Copeland Capital Management, LLC1,824,250$86.0M1.50%−520,245−22.2%ReducedConverted for a 5-for-1 split
Robeco Schweiz AG1,936,944$91.3M1.71%+326,439+20.3%AddedConverted for a 5-for-1 split
Dimensional Fund Advisors LP1,965,067$92.7M0.02%−207,773−9.6%ReducedConverted for a 5-for-1 split
Bowen Hanes & Co Inc2,014,725$95.0M2.49%00.0%UnchangedConverted for a 5-for-1 split
Charles Schwab Investment Management Inc2,070,483$97.6M0.02%−190,877−8.4%ReducedConverted for a 5-for-1 split
Standard Life Aberdeen plc2,110,076$98.5M0.18%−218,969−9.4%ReducedConverted for a 5-for-1 split
First Trust Advisors LP2,107,395$99.4M0.09%+32,365+1.6%AddedConverted for a 5-for-1 split
Allianz Asset Management GmbH2,123,835$100.2M0.15%+368,210+21.0%AddedConverted for a 5-for-1 split
Northern Trust Corp2,263,333$106.7M0.02%−71,087−3.0%ReducedConverted for a 5-for-1 split
CI Private Wealth, LLC2,273,420$107.2M0.17%−329,135−12.6%ReducedConverted for a 5-for-1 split
Morgan Stanley2,325,587$109.7M0.01%−358,903−13.4%ReducedConverted for a 5-for-1 split
Bank of New York Mellon Corp2,461,267$116.1M0.02%+17,792+0.7%AddedConverted for a 5-for-1 split
T. Rowe Price Investment Management, Inc.2,506,530$118.2M0.07%−226,850−8.3%ReducedConverted for a 5-for-1 split
Artisan Partners Limited Partnership2,777,965$131.0M0.20%+2,777,965New
Norges Bank3,044,000$143.6M0.02%−17,985−0.6%ReducedConverted for a 5-for-1 split
Ninety One UK Ltd3,113,197$146.8M0.39%−209,798−6.3%ReducedConverted for a 5-for-1 split
Bank of America Corp3,182,437$150.1M0.01%−115,903−3.5%ReducedConverted for a 5-for-1 split
Invesco Ltd.3,211,460$151.5M0.03%00.0%UnchangedConverted for a 5-for-1 split
Amundi3,155,872$152.9M0.06%−465,303−12.8%ReducedConverted for a 5-for-1 split
Allspring Global Investments Holdings, LLC3,299,418$155.6M0.24%−86,232−2.5%ReducedConverted for a 5-for-1 split
Geode Capital Management, LLC4,716,080$222.5M0.02%+61,625+1.3%AddedConverted for a 5-for-1 split
Sarasin & Partners LLP4,950,383$233.5M2.20%−794,357−13.8%ReducedConverted for a 5-for-1 split
FIL Ltd5,315,052$250.7M0.23%−436,383−7.6%ReducedConverted for a 5-for-1 split
Neuberger Berman Group LLC8,486,239$400.2M0.31%+172,804+2.1%AddedConverted for a 5-for-1 split
State Street Corp8,769,902$413.6M0.02%+74,412+0.9%AddedConverted for a 5-for-1 split
Alliancebernstein L.P.11,336,415$534.6M0.18%−826,165−6.8%ReducedConverted for a 5-for-1 split
Pictet Asset Management Holding SA13,637,450$643.1M0.71%+529,050+4.0%AddedConverted for a 5-for-1 split
Vanguard Group Inc25,784,346$1.22B0.02%00.0%UnchangedConverted for a 5-for-1 split
BlackRock, Inc.26,214,477$1.24B0.03%+26,214,477New
Ethic Inc.2,188––−18,497−89.4%ReducedConverted for a 5-for-1 split
Cooper Creek Partners Management LLC0$00.00%−496,335−100.0%Sold outConverted for a 5-for-1 split
Tudor Investment Corp Et Al0$00.00%−208,910−100.0%Sold outConverted for a 5-for-1 split
Bridge City Capital, LLC0$00.00%−198,945−100.0%Sold outConverted for a 5-for-1 split
D. E. Shaw & Co., Inc.0$00.00%−113,450−100.0%Sold outConverted for a 5-for-1 split
Simplicity Wealth,LLC0$00.00%−112,455−100.0%Sold outConverted for a 5-for-1 split
Quantbot Technologies LP0$00.00%−93,870−100.0%Sold outConverted for a 5-for-1 split
L & S Advisors Inc0$00.00%−54,795−100.0%Sold outConverted for a 5-for-1 split
Schonfeld Strategic Advisors LLC0$00.00%−50,535−100.0%Sold outConverted for a 5-for-1 split
Legato Capital Management LLC0$00.00%−48,265−100.0%Sold outConverted for a 5-for-1 split
Lombard Odier Asset Management (USA) Corp0$00.00%−39,835−100.0%Sold outConverted for a 5-for-1 split
CWM Advisors, LLC0$00.00%−32,315−100.0%Sold outConverted for a 5-for-1 split
Point72 (DIFC) Ltd0$00.00%−31,025−100.0%Sold outConverted for a 5-for-1 split
Point72 Hong Kong Ltd0$00.00%−29,250−100.0%Sold outConverted for a 5-for-1 split
SYSTM Wealth Solutions LLC0$00.00%−27,795−100.0%Sold outConverted for a 5-for-1 split
Fox Run Management, L.L.C.0$00.00%−25,890−100.0%Sold outConverted for a 5-for-1 split
Gateway Investment Advisers LLC0$00.00%−25,330−100.0%Sold outConverted for a 5-for-1 split
Moloney Securities Asset Management, LLC0$00.00%−22,420−100.0%Sold outConverted for a 5-for-1 split
Voloridge Investment Management, LLC0$00.00%−22,410−100.0%Sold outConverted for a 5-for-1 split
Omers Administration Corp0$00.00%−20,500−100.0%Sold outConverted for a 5-for-1 split
Nkcfo LLC0$00.00%−18,500−100.0%Sold outConverted for a 5-for-1 split
Inceptionr LLC0$00.00%−17,140−100.0%Sold outConverted for a 5-for-1 split
Whalen Wealth Management Inc.0$00.00%−12,580−100.0%Sold outConverted for a 5-for-1 split
Vident Advisory, LLC0$00.00%−11,000−100.0%Sold outConverted for a 5-for-1 split
MQS Management LLC0$00.00%−9,825−100.0%Sold outConverted for a 5-for-1 split
Occudo Quantitative Strategies LP0$00.00%−8,230−100.0%Sold outConverted for a 5-for-1 split
Two Sigma Securities, LLC0$00.00%−6,550−100.0%Sold outConverted for a 5-for-1 split
Sherbrooke Park Advisers LLC0$00.00%−5,135−100.0%Sold outConverted for a 5-for-1 split
Wolverine Trading, LLC0$00.00%−4,900−100.0%Sold outConverted for a 5-for-1 split
Great Lakes Retirement, Inc.0$00.00%−2,365−100.0%Sold outConverted for a 5-for-1 split
1832 Asset Management L.P.0$00.00%−1,355−100.0%Sold outConverted for a 5-for-1 split
Family Firm, Inc.0$00.00%−1,250−100.0%Sold outConverted for a 5-for-1 split
Benjamin Edwards Inc0$00.00%−615−100.0%Sold outConverted for a 5-for-1 split
Cohen & Steers, Inc.0$00.00%−400−100.0%Sold outConverted for a 5-for-1 split
Innealta Capital, LLC0$00.00%−385−100.0%Sold outConverted for a 5-for-1 split
Kelly Financial Services LLC0$00.00%−290−100.0%Sold outConverted for a 5-for-1 split
Ashton Thomas Private Wealth, LLC0$00.00%−235−100.0%Sold outConverted for a 5-for-1 split
Headlands Technologies LLC0$00.00%−230−100.0%Sold outConverted for a 5-for-1 split
Castleview Partners, LLC0$00.00%−100−100.0%Sold outConverted for a 5-for-1 split
Oakworth Capital, Inc.0$00.00%−65−100.0%Sold outConverted for a 5-for-1 split
Valley National Advisers Inc0$00.00%−55−100.0%Sold outConverted for a 5-for-1 split
RFP Financial Group LLC0$00.00%−40−100.0%Sold outConverted for a 5-for-1 split
Horizon Investments, LLC0$00.00%−30−100.0%Sold outConverted for a 5-for-1 split
BlackRock Inc.––––Not filed
Susquehanna Fundamental Investments, LLC––––Not filed
McKinley Capital Management LLC /Delaware––––Not filed
Abbrea Capital, LLC––––Not filed
Benjamin F. Edwards & Company, Inc.––––Not filed
JJJ Advisors Inc.––––Not filed
Institutional & Family Asset Management, LLC––––Not filed