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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, Q2 2021

Institutional positions in Tetra Tech Inc as of Jun 30, 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
366
+3 vs. Q1 2021
Shares held
46.6M
−505.4K (−1.1%) vs. Q1 2021
Total value
$5.68B
−$701.4M (−11.0%) vs. Q1 2021
New holders
50
126 more added
Sold out
47
134 more reduced

2 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2021: 366 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 2021: $5.68B
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 2021

Shares, value and share of portfolio for each institution holding Tetra Tech Inc; share changes are against Q1 2021.

Institutions holding TTEK in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Tortoise Capital Advisors, L.L.C.7,457$910.0K0.01%+5+0.1%Added
Walleye Capital LLC7,450$909.0K0.03%+7,450New
Commonwealth Equity Services, LLC7,172$875.0K0.00%−43−0.6%Reduced
Teacher Retirement System of Texas7,134$871.0K0.00%+1,052+17.3%Added
Legacy Wealth Asset Management, LLC6,915$844.0K0.37%−251−3.5%Reduced
O'Shares Investment Advisers, LLC6,804$830.0K0.06%+852+14.3%Added
Great Lakes Advisors, LLC6,731$821.0K0.01%+32+0.5%Added
Whittier Trust Co6,583$804.0K0.01%+232+3.7%Added
Bank of Montreal6,599$800.0K0.00%−159−2.4%Reduced
Quantbot Technologies LP6,380$778.0K0.06%+6,380New
Rathbone Brothers plc6,275$766.0K0.01%+890+16.5%Added
Hancock Whitney Corp6,119$747.0K0.02%−88−1.4%Reduced
Pacer Advisors, Inc.6,038$737.0K0.01%−40−0.7%Reduced
Crossmark Global Holdings, Inc.5,760$703.0K0.02%−290−4.8%Reduced
Bank Julius Baer & Co. Ltd, Zurich5,634$690.0K0.00%−16−0.3%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)5,645$689.0K0.00%−1,367−19.5%Reduced
Gabelli Funds LLC5,500$671.0K0.00%00.0%Unchanged
Aigen Investment Management, LP5,444$664.0K0.12%+5,444New
Northwestern Mutual Wealth Management Co5,425$662.0K0.00%−525−8.8%Reduced
First Pacific Financial5,303$647.0K0.36%+620+13.2%Added
Private Trust Co NA5,278$644.0K0.10%+732+16.1%Added
Caxton Associates LP5,250$641.0K0.08%+5,250New
Principal Street Partners, LLC5,000$610.0K0.16%−5,346−51.7%Reduced
Virginia Retirement Systems Et Al5,000$610.0K0.01%−500−9.1%Reduced
Securian Asset Management, Inc4,977$607.0K0.01%−120−2.4%Reduced
Guggenheim Capital LLC4,965$606.0K0.00%−1,056−17.5%Reduced
The PNC Financial Services Group, Inc.4,952$605.0K0.00%−1,404−22.1%Reduced
First Wilshire Securities Management Inc4,900$598.0K0.21%+500+11.4%Added
Profund Advisors LLC4,819$587.0K0.02%−113−2.3%Reduced
Gsa Capital Partners LLP4,783$584.0K0.07%+4,783New
Captrust Financial Advisors4,759$581.0K0.01%−77−1.6%Reduced
First Business Financial Services, Inc.4,676$571.0K0.07%−75−1.6%Reduced
Gotham Asset Management, LLC4,619$564.0K0.02%+755+19.5%Added
AE Wealth Management LLC4,580$559.0K0.00%−73−1.6%Reduced
Schonfeld Strategic Advisors LLC4,468$545.0K0.01%+1,968+78.7%Added
Janney Montgomery Scott LLC4,326$528.0K0.00%+35+0.8%Added
American Century Companies Inc4,181$510.0K0.00%+1,520+57.1%Added
Tower Research Capital LLC (TRC)4,152$507.0K0.01%−657−13.7%Reduced
Synovus Financial Corp4,095$499.0K0.00%+67+1.7%Added
Ledyard National Bank4,027$491.0K0.05%+95+2.4%Added
Cim Investment Mangement Inc3,919$478.0K0.15%00.0%Unchanged
Exane Derivatives3,714$462.9K0.11%+3,714New
Fred Alger Management, LLC3,738$456.0K0.00%00.0%Unchanged
Pathstone Family Office, LLC3,526$430.0K0.01%+1,557+79.1%Added
Tributary Capital Management, LLC3,517$429.0K0.03%+3,517New
Henshaw Capital LLC3,491$426.0K0.03%00.0%Unchanged
MML Investors Services, LLC3,445$420.0K0.00%+526+18.0%Added
HighPoint Advisor Group LLC3,375$412.0K0.04%+288+9.3%Added
Guinness Asset Management LTD3,306$403.0K0.02%+1,077+48.3%Added
Tocqueville Asset Management L.P.3,225$394.0K0.01%00.0%Unchanged
Creative Planning3,171$387.0K0.00%−40−1.2%Reduced
Bessemer Group Inc3,154$385.0K0.00%−215−6.4%Reduced
HSBC Holdings PLC3,155$383.0K0.00%−7,102−69.2%Reduced
JustInvest LLC3,120$381.0K0.04%+1,573+101.7%Added
Bridgeway Capital Management, LLC3,100$378.0K0.01%00.0%Unchanged
Shelton Capital Management3,009$367.0K0.01%00.0%Unchanged
Strategic Wealth Partners, Ltd.2,975$363.0K0.12%+2,975New
Sciencast Management LP2,866$357.0K0.07%+2,866New
Bayesian Capital Management, LP2,900$354.0K0.09%−1,674−36.6%Reduced
Illinois Municipal Retirement Fund2,895$353.0K0.01%00.0%Unchanged
Walleye Trading LLC2,865$350.0K0.01%+2,865New
M&T Bank Corp2,803$342.0K0.00%+103+3.8%Added
Jump Financial, LLC2,739$334.0K0.03%+2,739New
Pendal Group Limited2,700$330.0K0.00%+2,700New
Panagora Asset Management Inc2,646$323.0K0.00%00.0%Unchanged
Financial Counselors Inc2,618$320.0K0.01%+2,618New
Cresset Asset Management, LLC2,582$315.0K0.00%+611+31.0%Added
Coldstream Capital Management Inc2,535$309.0K0.01%+30+1.2%Added
Engineers Gate Manager LP2,448$299.0K0.02%+881+56.2%Added
SEI Investments Co2,410$296.0K0.00%−7,540−75.8%Reduced
US Bancorp2,324$283.0K0.00%−1,199−34.0%Reduced
Colony Group LLC2,320$283.0K0.01%−34−1.4%Reduced
Penobscot Investment Management Company, Inc.2,210$270.0K0.04%+2,210New
Pitcairn Co2,194$268.0K0.02%−105−4.6%Reduced
Truist Financial Corp2,102$256.0K0.00%−18−0.8%Reduced
Intrust Bank NA2,042$249.0K0.03%00.0%Unchanged
Personal Cfo Solutions, LLC2,037$249.0K0.05%+448+28.2%Added
Fiduciary Trust Co2,010$245.0K0.00%−20−1.0%Reduced
Holderness Investments Co2,000$244.0K0.08%00.0%Unchanged
J.W. Cole Advisors, Inc.1,995$243.0K0.02%+1,995New
Bluestein R H & Co1,963$240.0K0.01%00.0%Unchanged
Campbell & CO Investment Adviser LLC1,950$238.0K0.10%+1,950New
CIBC Asset Management Inc1,935$236.0K0.00%00.0%Unchanged
Financial Network Wealth Management LLC1,900$232.0K0.14%−1,200−38.7%Reduced
World Asset Management Inc1,897$232.0K0.02%−80−4.0%Reduced
Baird Financial Group, Inc.1,896$231.0K0.00%−9,808−83.8%Reduced
Cornercap Investment Counsel Inc1,887$230.0K0.03%−560−22.9%Reduced
Mackenzie Financial Corp1,862$227.0K0.00%+1,862New
Blueshift Asset Management, LLC1,843$225.0K0.01%−328−15.1%Reduced
Virtu Financial LLC1,843$225.0K0.02%+1,843New
Cigna Investments Inc1,780$217.0K0.02%−200−10.1%Reduced
Advisory Services Network, LLC1,654$201.0K0.01%+1,654New
Natixis Investment Managers International1,582$193.0K0.01%+420+36.1%Added
Spire Wealth Management1,572$192.0K0.01%−2,932−65.1%Reduced
Public Employees Retirement System of Ohio1,520$186.0K0.00%−997−39.6%Reduced
First Mercantile Trust Co1,481$181.0K0.02%−74−4.8%Reduced
Huntington National Bank1,387$169.0K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC922$113.0K0.00%−665−41.9%Reduced
GPS Wealth Strategies Group, LLC930$113.0K0.03%+54+6.2%Added
First Manhattan Co914$111.0K0.00%−204−18.2%Reduced