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Livermore
Livermore
ZHEN

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
Staley Capital Advisers Inc76,000$3.58M0.16%00.0%UnchangedConverted for a 5-for-1 split
Louisiana State Employees Retirement System74,100$3.49M0.06%−1,400−1.9%ReducedConverted for a 5-for-1 split
Bristlecone Advisors, LLC72,767$3.43M0.28%−1,043−1.4%ReducedConverted for a 5-for-1 split
First National Bank of Omaha68,604$3.24M0.21%−521−0.8%ReducedConverted for a 5-for-1 split
Commerce Bank67,360$3.18M0.02%−7,560−10.1%ReducedConverted for a 5-for-1 split
Icon Advisers Inc67,000$3.16M0.66%+47,000+235.0%AddedConverted for a 5-for-1 split
Envestnet Portfolio Solutions, Inc.66,729$3.15M0.01%00.0%UnchangedConverted for a 5-for-1 split
Quantinno Capital Management LP66,724$3.15M0.04%+55,289+483.5%AddedConverted for a 5-for-1 split
Creative Planning64,738$3.05M0.00%−25,207−28.0%ReducedConverted for a 5-for-1 split
State of Michigan Retirement System63,540$3.00M0.01%−1,000−1.5%ReducedConverted for a 5-for-1 split
Thrivent Financial for Lutherans63,336$2.99M0.01%−1,789−2.7%ReducedConverted for a 5-for-1 split
Handelsbanken Fonder AB63,045$2.97M0.01%+15,000+31.2%AddedConverted for a 5-for-1 split
Brinker Capital Investments, LLC61,478$2.90M0.03%−8,462−12.1%ReducedConverted for a 5-for-1 split
Orion Portfolio Solutions, LLC61,478$2.90M0.03%−8,462−12.1%ReducedConverted for a 5-for-1 split
B. Metzler seel. Sohn & Co. AG61,325$2.89M0.03%−44,430−42.0%ReducedConverted for a 5-for-1 split
B. Metzler seel. Sohn & Co. Holding AG61,325$2.89M0.03%+61,325New
Twinbeech Capital LP60,767$2.87M0.05%+60,767New
Farrow Financial Inc.60,128$2.84M1.79%−1,687−2.7%ReducedConverted for a 5-for-1 split
Northwestern Mutual Investment Management Company, LLC59,345$2.80M0.07%−355−0.6%ReducedConverted for a 5-for-1 split
Commonwealth of Pennsylvania Public School Empls Retrmt Sys58,963$2.78M0.02%−322−0.5%ReducedConverted for a 5-for-1 split
VELA Investment Management, LLC58,510$2.76M0.94%+22,120+60.8%AddedConverted for a 5-for-1 split
Argent Capital Management LLC57,306$2.70M0.07%+57,306New
Davy Global Fund Management Ltd54,550$2.57M0.27%−730−1.3%ReducedConverted for a 5-for-1 split
New Mexico Educational Retirement Board54,500$2.57M0.09%00.0%UnchangedConverted for a 5-for-1 split
Cetera Investment Advisers54,418$2.57M0.01%+3,733+7.4%AddedConverted for a 5-for-1 split
Raymond James Financial Services Advisors, Inc.54,364$2.56M0.00%+15,674+40.5%AddedConverted for a 5-for-1 split
Oregon Public Employees Retirement Fund54,125$2.55M0.05%−1,295−2.3%ReducedConverted for a 5-for-1 split
Pacer Advisors, Inc.53,595$2.53M0.01%+13,250+32.8%AddedConverted for a 5-for-1 split
Fred Alger Management, LLC53,145$2.51M0.01%00.0%UnchangedConverted for a 5-for-1 split
Bleakley Financial Group, LLC51,016$2.41M0.07%−61,439−54.6%ReducedConverted for a 5-for-1 split
Oddo BHF Asset Management SAS49,725$2.35M0.12%+49,725New
Sandler Capital Management48,655$2.29M0.44%−34,340−41.4%ReducedConverted for a 5-for-1 split
Sequoia Financial Advisors, LLC48,310$2.28M0.02%+745+1.6%AddedConverted for a 5-for-1 split
Pinebridge Investments, L.P.47,982$2.26M0.02%+47,982New
Danske Bank A/S47,802$2.25M0.01%+5,327+12.5%AddedConverted for a 5-for-1 split
Nicola Wealth Management Ltd.47,500$2.24M0.18%+10,000+26.7%AddedConverted for a 5-for-1 split
Centiva Capital, LP47,355$2.23M0.10%+35,585+302.3%AddedConverted for a 5-for-1 split
Caldwell Investment Management Ltd.46,500$2.16M1.51%00.0%UnchangedConverted for a 5-for-1 split
Prudential Financial Inc44,806$2.11M0.00%+1,751+4.1%AddedConverted for a 5-for-1 split
Nordea Investment Management AB45,011$2.10M0.00%−2,634−5.5%ReducedConverted for a 5-for-1 split
Essex Investment Management Co LLC44,373$2.09M0.36%−827−1.8%ReducedConverted for a 5-for-1 split
STRS Ohio43,556$2.05M0.01%+856+2.0%AddedConverted for a 5-for-1 split
Oak Thistle LLC43,315$2.04M0.66%+43,315New
Janney Montgomery Scott LLC42,647$2.01M0.01%−18,248−30.0%ReducedConverted for a 5-for-1 split
Formula Growth Ltd42,500$2.00M0.69%−5,000−10.5%ReducedConverted for a 5-for-1 split
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main42,265$1.99M0.00%00.0%UnchangedConverted for a 5-for-1 split
TD Asset Management Inc42,830$1.99M0.00%00.0%UnchangedConverted for a 5-for-1 split
Aquatic Capital Management LLC41,500$1.96M0.05%+16,500+66.0%AddedConverted for a 5-for-1 split
Brevan Howard Capital Management LP41,065$1.94M0.09%+12,025+41.4%AddedConverted for a 5-for-1 split
D.A. Davidson & Co.40,493$1.91M0.02%+218+0.5%AddedConverted for a 5-for-1 split
Strategic Wealth Partners, Ltd.40,095$1.89M0.18%+3,275+8.9%AddedConverted for a 5-for-1 split
Xponance, Inc.40,079$1.89M0.02%+2,134+5.6%AddedConverted for a 5-for-1 split
MML Investors Services, LLC39,412$1.86M0.01%+397+1.0%AddedConverted for a 5-for-1 split
Oppenheimer & Co Inc39,391$1.86M0.03%+641+1.7%AddedConverted for a 5-for-1 split
Bailard, Inc.39,205$1.85M0.05%−1,300−3.2%ReducedConverted for a 5-for-1 split
Jump Financial, LLC37,745$1.78M0.04%−65,985−63.6%ReducedConverted for a 5-for-1 split
O'Shaughnessy Asset Management, LLC35,846$1.76M0.02%+4,716+15.1%AddedConverted for a 5-for-1 split
ClariVest Asset Management LLC8,571$1.75M0.18%−34,284−80.0%ReducedConverted for a 5-for-1 split
Harbor Capital Advisors, Inc.36,430$1.72M0.07%+11,505+46.2%AddedConverted for a 5-for-1 split
SFE Investment Counsel36,330$1.71M0.36%−1,925−5.0%ReducedConverted for a 5-for-1 split
Cresset Asset Management, LLC36,168$1.71M0.01%+11,778+48.3%AddedConverted for a 5-for-1 split
Truist Financial Corp35,793$1.69M0.00%−337−0.9%ReducedConverted for a 5-for-1 split
Baird Financial Group, Inc.34,929$1.65M0.00%+904+2.7%AddedConverted for a 5-for-1 split
Whittier Trust Co34,915$1.65M0.02%+750+2.2%AddedConverted for a 5-for-1 split
Klingman & Associates, LLC33,850$1.60M0.10%+33,850New
Tredje AP-fonden32,680$1.54M0.01%00.0%UnchangedConverted for a 5-for-1 split
Legacy Wealth Asset Management, LLC32,145$1.52M0.41%00.0%UnchangedConverted for a 5-for-1 split
State of Alaska, Department of Revenue31,090$1.47M0.02%+2,105+7.3%AddedConverted for a 5-for-1 split
New York Life Investment Management LLC30,728$1.45M0.01%−1,762−5.4%ReducedConverted for a 5-for-1 split
American Century Companies Inc30,392$1.43M0.00%+1,187+4.1%AddedConverted for a 5-for-1 split
Public Employees Retirement Association of Colorado29,150$1.38M0.01%00.0%UnchangedConverted for a 5-for-1 split
Commonwealth Equity Services, LLC28,930$1.36M0.00%+205+0.7%AddedConverted for a 5-for-1 split
Lazard Asset Management LLC28,900$1.36M0.00%+2,035+7.6%AddedConverted for a 5-for-1 split
Vancity Investment Management Ltd28,655$1.35M0.16%−31,210−52.1%ReducedConverted for a 5-for-1 split
Hunter Associates Investment Management LLC27,624$1.31M0.20%−4,681−14.5%ReducedConverted for a 5-for-1 split
Empowered Funds, LLC27,726$1.31M0.02%+27,726New
Campbell & CO Investment Adviser LLC27,372$1.29M0.10%−1,978−6.7%ReducedConverted for a 5-for-1 split
ABN AMRO Bank N.V.26,920$1.26M0.02%+26,920New
Entropy Technologies, LP26,650$1.26M0.13%+17,395+188.0%AddedConverted for a 5-for-1 split
Lecap Asset Management Ltd26,134$1.23M0.27%+26,134New
Y-Intercept (Hong Kong) Ltd25,544$1.20M0.07%+15,859+163.7%AddedConverted for a 5-for-1 split
First Pacific Financial25,314$1.19M0.28%+204+0.8%AddedConverted for a 5-for-1 split
Tributary Capital Management, LLC25,109$1.18M0.09%+249+1.0%AddedConverted for a 5-for-1 split
JustInvest LLC25,062$1.18M0.02%+257+1.0%AddedConverted for a 5-for-1 split
Bank Julius Baer & Co. Ltd, Zurich21,089$1.18M0.00%−1,376−6.1%ReducedConverted for a 5-for-1 split
Captrust Financial Advisors24,724$1.17M0.00%+2,794+12.7%AddedConverted for a 5-for-1 split
Gotham Asset Management, LLC24,602$1.16M0.01%+19,342+367.7%AddedConverted for a 5-for-1 split
Eqis Capital Management, Inc.24,556$1.16M0.09%+5,076+26.1%AddedConverted for a 5-for-1 split
Sanctuary Advisors, LLC27,902$1.14M0.01%+2,052+7.9%AddedConverted for a 5-for-1 split
Coldstream Capital Management Inc24,165$1.14M0.02%+800+3.4%AddedConverted for a 5-for-1 split
Spire Wealth Management24,095$1.14M0.04%+19,240+396.3%AddedConverted for a 5-for-1 split
First Wilshire Securities Management Inc24,000$1.13M0.32%00.0%UnchangedConverted for a 5-for-1 split
Polen Capital Management LLC23,124$1.09M0.00%+6,579+39.8%AddedConverted for a 5-for-1 split
AQR Capital Management LLC23,369$1.09M0.00%+3,089+15.2%AddedConverted for a 5-for-1 split
The PNC Financial Services Group, Inc.22,982$1.08M0.00%+2,847+14.1%AddedConverted for a 5-for-1 split
Manchester Capital Management LLC22,895$1.08M0.13%00.0%UnchangedConverted for a 5-for-1 split
Great Lakes Advisors, LLC22,407$1.06M0.01%−363−1.6%ReducedConverted for a 5-for-1 split
M&T Bank Corp22,320$1.05M0.00%−225−1.0%ReducedConverted for a 5-for-1 split
Arkadios Wealth Advisors22,310$1.05M0.06%+6,725+43.2%AddedConverted for a 5-for-1 split
Marshall Wace, LLP22,151$1.04M0.00%−391,299−94.6%ReducedConverted for a 5-for-1 split