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Disclosery

TTEK TETRA TECH INC NEW

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COM (common), issuer CIK 831641

597 managers (611 13F filers) reported a position in TTEK shares at 2025-12-31, 241,782,135 shares in all. 72 filers opened a position and 69 filers sold out during the quarter.

Managers
597
13F filers
611
New
72
Added
182
Reduced
253
Sold out
69
Shares held by filers
241,782,135

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Squarepoint Ops LLCin group Squarepoint Ops LLC68,856$2.31M<0.01%+49,45513F-HRTimelineGroup
Engineers Gate Manager LP68,186$2.29M0.03%-4,63613F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…65,488$2.28M<0.01%+40,28213F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources67,356$2.26M<0.01%-3,23313F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS67,079$2.25M<0.01%+16,33513F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…66,850$2.24M0.07%-3,09713F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…65,418$2.19M0.01%-2,02213F-HRTimeline
D'Orazio & Associates, Inc.65,395$2.19M0.28%-13,50913F-HRTimeline
Bridgewater Associates, LP64,301$2.16M0.01%new13F-HRTimeline
Bridgefront Capital, LLC63,878$2.14M0.54%new13F-HRTimeline
Aquatic Capital Management LLC63,634$2.13M0.06%-123,25413F-HRTimeline
KLP KAPITALFORVALTNING AS62,700$2.1M0.01%+10,20013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.62,600$2.1M0.01%-15,91913F-HRTimelineGroup
STATE OF MICHIGAN RETIREMENT SYSTEM61,740$2.07M0.01%-80013F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC60,750$2.04M0.02%-1,62813F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…59,337$1.99M<0.01%-1,50513F-HRTimelineGroup
New Age Alpha Advisors, LLC58,868$1.97M0.09%+2,84013F-HRTimeline
Orion Porfolio Solutions, LLC58,197$1.95M0.01%+6,71313F-HRTimeline
Horizon Investments, LLC55,691$1.87M0.02%new13F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD54,500$1.83M0.05%013F-HRTimeline
Numerai GP LLC52,930$1.78M0.21%new13F-HRTimeline
Summit Trail Advisors, LLC52,785$1.77M0.03%-18,24413F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND51,925$1.74M0.02%-1,00013F-HRTimeline
Cetera Investment Advisers51,259$1.72M<0.01%-17,37413F-HRTimeline
CWM, LLCin group CWM, LLC50,658$1.7M<0.01%+44,52113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC50,593$1.7M<0.01%-948,77613F-HRTimelineGroup
WCM INVESTMENT MANAGEMENT, LLC47,266$1.61M<0.01%-34,75013F-HRTimeline
Terra Alpha Investments LLC47,464$1.59M1.63%-49413F-HRTimeline
Elo Mutual Pension Insurance Co47,126$1.58M0.02%+24,31313F-HRTimeline
South Dakota Investment Council47,072$1.58M0.03%-7,19813F-HRTimeline
Northwest & Ethical Investments L.P.43,068$1.44M0.03%-29,68913F-HR/ATimeline
Atria Investments, Inc42,374$1.42M0.02%-5,13413F-HRTimeline
Alberta Investment Management Corp42,000$1.41M0.01%new13F-HR/ATimeline
IQ EQ FUND MANAGEMENT (IRELAND) Ltd41,405$1.39M0.1%+4,66613F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …40,921$1.38M<0.01%-6,63713F-HRTimelineGroup
VIRGINIA RETIREMENT SYSTEMS ET Al40,670$1.36M0.01%+23,97013F-HRTimeline
Radnor Capital Management, LLC40,020$1.34M0.2%-5,60013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS39,950$1.34M<0.01%-25,59913F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC39,341$1.32M<0.01%-23813F-HRTimeline
FORMULA GROWTH LTD39,050$1.31M0.5%013F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS38,384$1.29M0.05%-1,68713F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
SYON CAPITAL LLC37,963$1.27M0.06%+8,29113F-HRTimeline
Bleakley Financial Group, LLC36,445$1.22M0.02%+1,99013F-HRTimeline
Vancity Investment Management Ltd35,603$1.19M0.16%+1,39213F-HR/ATimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC35,206$1.18M<0.01%+26,95213F-HRTimelineGroup
LECAP ASSET MANAGEMENT LTD34,678$1.16M0.46%+27,23413F-HRTimeline
WHITTIER TRUST CO32,915$1.14M0.01%013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC34,059$1.14M0.01%-75413F-HRTimeline
XPONANCE LLC34,040$1.14M0.01%-4,95213F-HRTimeline
WORLDQUANT MILLENNIUM ADVISORS LLC33,708$1.13M<0.01%-16,23613F-HRTimeline
HUNTER ASSOCIATES INVESTMENT MANAGEMENT…33,409$1.13M0.15%+91413F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.33,382$1.12M0.17%-1,56613F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC32,791$1.1M0.01%+8,63213F-HRTimelineGroup
Tributary Capital Management, LLC32,235$1.08M0.11%-51213F-HRTimeline
TRIGLAV INVESTMENTS, D.O.O.32,090$1.08M0.07%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.31,485$1.06M<0.01%-30,47113F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC30,856$1.03M0.01%new13F-HRTimelineGroup
Taproot Management LP30,847$1.03M0.17%13F-HRTimeline
D.A. DAVIDSON & CO.30,345$1.02M0.01%-12013F-HRTimeline
Cambridge Investment Research Advisors,…30,156$1.01M<0.01%+19,40313F-HRTimeline
Caprock Group, LLC29,665$995K0.02%-16,49113F-HRTimeline
Perigon Wealth Management, LLC29,400$986K0.02%new13F-HRTimeline
Legacy Wealth Asset Management, LLC29,385$986K0.24%-88513F-HRTimeline
EQUITABLE TRUST CO28,332$950K0.04%+2,57613F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.27,975$938K0.01%new13F-HRTimelineGroup
Hillsdale Investment Management Inc.27,500$922K0.03%+10013F-HRTimeline
Sciencast Management LP27,222$913K0.13%+3,83213F-HRTimeline
Ridge Creek Global, Inc27,165$911K0.76%13F-HRTimeline
SEGALL BRYANT & HAMILL, LLC26,498$889K0.01%-650,96513F-HRTimeline
State of Alaska, Department of Revenue25,947$870K0.01%-2,23513F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…25,946$870K<0.01%013F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…in group CAPITAL GROUP INVESTMENT MANA…25,906$869K0.14%+1,36613F-HRTimelineGroup
Lazard Freres Gestion S.A.S.25,830$866K0.02%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC25,791$865K0.03%-1,05913F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC25,169$844K0.01%-2,17913F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC24,613$826K<0.01%-1,149,61413F-HRTimeline
Inscription Capital, LLC24,582$824K0.08%-14,06113F-HRTimeline
BAILARD, INC.24,200$812K0.02%-14,80013F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…23,509$788K0.01%-3,17013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…23,499$788K<0.01%+56813F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.23,475$787K0.02%+913F-HRTimeline
M&T Bank Corpin group M&T Bank Corp23,411$786K<0.01%+3,42313F-HR/ATimelineGroup
XTX Topco Ltdin group XTX Topco Ltd23,091$774K0.02%-43,95113F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD22,200$745K<0.01%+19,60013F-HRTimeline
Aaron Wealth Advisors LLC22,170$744K0.04%-8,95213F-HRTimeline
Jain Global LLC21,963$737K0.01%new13F-HRTimeline
Ethic Inc.21,794$731K0.01%-9,23213F-HRTimeline
U.S. Capital Wealth Advisors, LLC21,731$729K0.02%-1,75313F-HRTimeline
Chicago Partners Investment Group LLC19,506$721K0.02%+1,48813F-HRTimeline
FIRST WILSHIRE SECURITIES MANAGEMENT INC21,500$721K0.18%013F-HRTimeline
Havemeyer Place LP21,489$721K0.14%13F-HRTimeline
Arkadios Wealth Advisors21,226$712K0.01%-1,80313F-HRTimeline
EVEXIA WEALTH LLC19,497$710K0.2%+1,09213F-HRTimeline
Trium Capital LLP20,810$698K0.54%+7,13813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
US BANCORP \DE\in group US BANCORP \DE\20,636$692K<0.01%+1,58713F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC20,553$689K<0.01%-2,46813F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC20,486$687K<0.01%-2,15513F-HRTimeline
Massar Capital Management, LP20,218$678K0.13%new13F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.20,099$674K<0.01%-5,24513F-HRTimelineGroup
MML INVESTORS SERVICES, LLC19,762$663K<0.01%-6,09313F-HRTimeline
Entropy Technologies, LP19,652$659K0.04%-16,40613F-HRTimeline
Regal Investment Advisors LLC19,131$642K0.04%new13F-HRTimeline
SECURIAN ASSET MANAGEMENT, INC19,051$639K0.02%-62913F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd18,900$634K0.02%new13F-HRTimelineGroup
Ballentine Partners, LLC18,829$632K0.01%-75013F-HRTimeline
AlphaGrep UK Ltd18,802$631K0.21%13F-HRTimeline
&PARTNERS18,694$627K<0.01%+1,17813F-HRTimeline
State of Wyoming18,457$619K0.07%+3,11513F-HRTimeline
Merit Financial Group, LLC18,177$610K<0.01%+9,12713F-HRTimeline
Diametric Capital, LP18,070$606K0.16%new13F-HRTimeline
NWAM LLC16,510$606K0.03%+4913F-HRTimeline
DIVERSIFIED TRUST CO17,995$604K0.01%+7,66913F-HRTimeline
GREAT LAKES ADVISORS, LLC17,773$596K<0.01%-2,36713F-HRTimeline
First Pacific Financial17,751$595K0.08%-1,13913F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC17,683$593K0.04%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC17,297$580K<0.01%+5,19713F-HRTimelineGroup
AXQ CAPITAL, LP17,094$573K0.13%-13,58413F-HRTimeline
Capital Advisors, Ltd. LLC3,272$568K0.06%+1,98213F-HRTimeline
First Business Financial Services, Inc.16,820$564K0.05%-73513F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC16,804$564K0.01%-1,78913F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC16,545$562K<0.01%-10,52513F-HRTimelineGroup
Sanctuary Advisors, LLC16,628$558K<0.01%-3,00113F-HRTimeline
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC16,156$542K0.14%+1,08213F-HRTimelineGroup
Patten Group, Inc.15,997$537K0.1%-9,25013F-HRTimeline
BOWEN HANES & CO INC15,975$536K0.01%-721,45013F-HRTimeline
VestGen Advisors, LLC15,879$533K0.02%-30,45013F-HRTimeline
New Hampshire Trust15,765$529K0.1%013F-HRTimeline
Midwest Trust Co15,765$529K0.01%013F-HRTimeline
Baker Avenue Asset Management, LP15,560$522K0.01%+1,38213F-HRTimeline
Dynamic Advisor Solutions LLC15,464$519K0.02%+4,67413F-HRTimeline
Compass Wealth Management LLC15,125$507K0.13%013F-HRTimeline
Ledyard National Bank15,068$505K0.04%-48913F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …15,025$504K0.01%013F-HRTimelineGroup
Laird Norton Wetherby Trust Company, LLCin group Laird Norton Wetherby Trust C…14,814$497K0.01%new13F-HRTimelineGroup
Cullen Capital Management, LLC14,433$484K0.01%-8,00813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…14,370$482K0.01%+4,10113F-HRTimelineGroup
Utah Retirement Systems14,116$473K<0.01%013F-HRTimeline
SWP FINANCIAL LLC13,925$467K0.23%-15013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…13,924$467K0.01%-37,19513F-HRTimelineGroup
AdvisorShares Investments LLC13,856$465K0.08%+1,11713F-HRTimeline
Ensign Peak Advisors, Inc13,845$464K<0.01%-25,20013F-HR/ATimeline
ELCO Management Co., LLC13,697$459K0.29%013F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.13,632$457K0.04%-63913F-HRTimeline
DOVER ADVISORS, LLC13,600$456K0.18%new13F-HRTimeline
Cynosure Group, LLC13,419$450K0.05%+1,28713F-HRTimeline
Sterling Capital Management LLC12,995$436K0.01%-29613F-HRTimeline
Abacus Wealth Partners, LLC12,933$434K0.04%new13F-HRTimeline
J.W. COLE ADVISORS, INC.12,870$429K0.01%-17413F-HRTimeline
Rathbones Group PLC12,581$422K<0.01%+1,51213F-HR/ATimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.12,525$420K<0.01%-4,74913F-HRTimelineGroup
Optas, LLC12,473$418K0.07%+6,23913F-HRTimeline
Maryland State Retirement & Pension Sys…12,454$418K0.01%013F-HRTimeline
HB Wealth Management, LLC12,387$415K<0.01%+2,90713F-HRTimeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding12,339$414K-645Timeline
Holocene Advisors, LP12,317$413K<0.01%+2,19413F-HRTimeline
RWC Asset Management LLPin group RWC ASSET ADVISORS (US) LLC12,253$411K0.02%013F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC12,237$410K<0.01%013F-HRTimelineGroup
Janney Montgomery Scott LLC12,078$405K<0.01%-1,46913F-HRTimeline
Aureus Asset Management, LLC12,065$405K0.03%013F-HRTimeline
TRUST POINT INC.12,037$404K0.03%+1213F-HRTimeline
Groupe la Francaisein group Groupe la Francaise12,000$402K0.01%+50013F-HRTimelineGroup
Snowden Capital Advisors LLC11,891$399K0.01%-2,34613F-HRTimeline
DEFINE FINANCIAL, LLC11,715$393K0.22%-3,61513F-HRTimeline
Kera Capital Partners, Inc.10,432$393K0.05%new13F-HRTimeline
Clear Creek Financial Management, LLC11,590$389K0.03%new13F-HRTimeline
NORTH STAR ASSET MANAGEMENT INC11,500$386K0.02%013F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/11,164$374K<0.01%+4,89113F-HRTimelineGroup
Argent Trust Co11,051$371K0.01%-7,53413F-HRTimeline
Graham Capital Management, L.P.10,939$367K0.01%-4,06413F-HRTimeline
MGO ONE SEVEN LLC10,890$365K0.01%+6813F-HRTimeline
Sequoia Financial Advisors, LLC10,666$358K<0.01%+4,33813F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…10,597$355K<0.01%-15,31813F-HRTimelineGroup
Global Retirement Partners, LLC10,537$353K0.01%+3,07313F-HRTimeline
Steward Partners Investment Advisory, L…10,523$353K<0.01%-39513F-HRTimeline
Pallas Capital Advisors LLC10,518$353K0.01%new13F-HRTimeline
ProShare Advisors LLC10,483$352K<0.01%-69313F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK10,316$346K<0.01%-1,01913F-HRTimelineGroup
Dakota Wealth Management10,196$342K0.01%new13F-HR/ATimeline
Whalen Wealth Management Inc.9,985$335K0.18%new13F-HRTimeline
NewEdge Wealth, LLC9,894$332K<0.01%-71413F-HRTimeline
Schonfeld Strategic Advisors LLC9,686$325K<0.01%-69,46213F-HRTimeline
Bank Julius Baer & Co. Ltd, Zurich9,500$319K<0.01%013F-HRTimeline
INCEPTIONR LLC9,431$316K0.09%new13F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC9,380$315K0.02%013F-HRTimeline
HighPoint Advisor Group LLC9,384$315K0.01%-4,18113F-HRTimeline
Empirical Financial Services, LLC d.b.a…9,354$314K0.01%+67813F-HRTimeline
NOVEM GROUP9,345$313K0.04%-7,79113F-HRTimeline
North Dakota State Investment Board9,285$311K0.01%13F-HRTimeline
COMMERCE BANKin group COMMERCE BANK9,191$308K<0.01%-68,07413F-HRTimelineGroup
Modern Wealth Management, LLC9,142$307K0.01%+22813F-HRTimeline
Malaga Cove Capital, LLC9,125$306K0.11%new13F-HRTimeline
Versant Capital Management, Inc9,093$305K0.04%-2,96313F-HRTimeline
Bayforest Capital Ltd8,973$301K0.22%-1,65713F-HRTimeline
SHELTON CAPITAL MANAGEMENT8,767$294K0.01%-3,50413F-HRTimeline
HUB Investment Partners, LLC8,559$287K0.01%-1,28213F-HRTimeline
EP Wealth Advisors, LLC8,551$287K<0.01%13F-HRTimeline
EntryPoint Capital, LLC8,535$286K0.11%new13F-HRTimeline
CIBC Asset Management Inc8,488$285K<0.01%013F-HRTimeline
OneDigital Investment Advisors LLC8,370$281K<0.01%-79213F-HRTimeline
IFP Advisors, Inc8,358$280K0.01%-2,02213F-HRTimeline