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Disclosery

TTEK TETRA TECH INC NEW

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COM (common), issuer CIK 831641

580 managers (596 13F filers) reported a position in TTEK shares at 2025-09-30, 246,288,250 shares in all. 71 filers opened a position and 61 filers sold out during the quarter.

Managers
580
13F filers
596
New
71
Added
231
Reduced
202
Sold out
61
Shares held by filers
246,288,250

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …71,167$2.38M0.04%+33,12013F-HRTimelineGroup
Summit Trail Advisors, LLC71,029$2.37M0.03%+28,87113F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources70,589$2.36M<0.01%+35,97213F-HRTimelineGroup
Campbell & CO Investment Adviser LLC70,217$2.34M0.18%new13F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding69,947$2.33M-3,790Timeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…69,265$2.31M<0.01%+20,00013F-HRTimelineGroup
Cetera Investment Advisers68,633$2.29M<0.01%+16,09913F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…67,440$2.25M0.01%-26213F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd67,042$2.24M0.12%+14,17613F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS65,549$2.19M0.01%-2,99513F-HRTimeline
TUDOR INVESTMENT CORP ET AL64,401$2.15M0.01%new13F-HR/ATimeline
STATE OF MICHIGAN RETIREMENT SYSTEM62,540$2.09M0.01%-80013F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC62,378$2.08M0.02%-9,91913F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.61,956$2.07M<0.01%-150,60313F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…60,842$2.03M<0.01%-1,67213F-HRTimelineGroup
Pacer Advisors, Inc.59,709$1.99M0.01%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/56,080$1.87M<0.01%+13,04313F-HRTimelineGroup
New Age Alpha Advisors, LLC56,028$1.87M0.08%-1,52013F-HRTimeline
Bristlecone Advisors, LLC54,506$1.82M0.15%-7,90713F-HRTimeline
NEW MEXICO EDUCATIONAL RETIREMENT BOARD54,500$1.82M0.06%013F-HRTimeline
South Dakota Investment Council54,270$1.81M0.04%-50,50013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND52,925$1.77M0.02%-70013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC52,670$1.76M0.02%+16,13513F-HRTimeline
KLP KAPITALFORVALTNING AS52,500$1.75M0.01%-1,30013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC51,962$1.73M<0.01%-3,18813F-HRTimelineGroup
Orion Porfolio Solutions, LLC51,484$1.72M0.01%+1,73713F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…51,119$1.71M0.02%+13,84813F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS50,744$1.69M<0.01%+1,90313F-HRTimeline
Y-Intercept (Hong Kong) Ltd50,564$1.69M0.04%+32,48013F-HRTimeline
Caprock Group, LLC46,156$1.68M0.04%13F-HRTimeline
WORLDQUANT MILLENNIUM ADVISORS LLC49,944$1.67M0.01%new13F-HRTimeline
Dynamic Technology Lab Private Ltd48,113$1.61M0.27%new13F-HRTimeline
Terra Alpha Investments LLC47,958$1.6M1.63%-46213F-HRTimeline
Atria Investments, Inc47,508$1.59M0.02%+17,91113F-HRTimeline
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …47,558$1.59M<0.01%013F-HRTimelineGroup
VestGen Advisors, LLC46,329$1.55M0.05%-1,44713F-HRTimeline
Radnor Capital Management, LLC45,620$1.52M0.23%+11,70013F-HRTimeline
Quantbot Technologies LP42,786$1.43M0.04%+38,76713F-HRTimeline
One Capital Management, LLC42,224$1.41M0.04%+15,70713F-HRTimeline
Future Fund LLC42,224$1.41M0.5%+15,70713F-HRTimeline
Farringdon Capital, Ltd.42,134$1.41M0.36%new13F-HRTimeline
ODDO BHF ASSET MANAGEMENT SAS40,071$1.34M0.05%-39,86913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
VICTORY CAPITAL MANAGEMENT INC39,579$1.32M<0.01%-4,43513F-HRTimeline
FORMULA GROWTH LTD39,050$1.3M0.46%013F-HRTimeline
Ensign Peak Advisors, Inc39,045$1.3M<0.01%-37,55013F-HR/ATimeline
BAILARD, INC.39,000$1.3M0.03%013F-HRTimeline
XPONANCE LLC38,992$1.3M0.01%-2,29413F-HRTimeline
Inscription Capital, LLC38,643$1.29M0.14%+24,55613F-HRTimeline
Tredje AP-fonden38,112$1.27M0.01%+5,43213F-HRTimeline
IQ EQ FUND MANAGEMENT (IRELAND) Ltd36,739$1.23M0.08%+9,41113F-HRTimeline
Entropy Technologies, LP36,058$1.2M0.09%new13F-HRTimeline
Oak Thistle LLC35,899$1.2M0.18%+2,93113F-HRTimeline
Qsemble Capital Management, LP35,626$1.19M0.12%new13F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.34,948$1.17M0.18%+5,92413F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC34,813$1.16M0.01%+1,44613F-HRTimeline
Bleakley Financial Group, LLC34,455$1.15M0.03%-1,88913F-HRTimeline
Vancity Investment Management Ltd34,211$1.14M0.15%+1,53413F-HRTimeline
WHITTIER TRUST CO32,915$1.11M0.01%013F-HRTimeline
HUNTER ASSOCIATES INVESTMENT MANAGEMENT…32,495$1.09M0.15%-88013F-HRTimeline
Tributary Capital Management, LLC32,747$1.09M0.1%-7,21013F-HR/ATimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC32,329$1.08M<0.01%new13F-HRTimeline
TRIGLAV INVESTMENTS, D.O.O.32,090$1.07M0.07%013F-HRTimeline
Aaron Wealth Advisors LLC31,122$1.04M0.06%+23,06513F-HRTimeline
Ethic Inc.31,026$1.04M0.02%+99613F-HRTimeline
AXQ CAPITAL, LP30,678$1.02M0.39%+3,78913F-HRTimeline
D.A. DAVIDSON & CO.30,465$1.02M0.01%+1,80013F-HRTimeline
Legacy Wealth Asset Management, LLC30,270$1.01M0.25%-44313F-HRTimeline
PDT Partners, LLC30,252$1.01M0.06%new13F-HRTimeline
Gitterman Wealth Management, LLC30,211$1.01M0.23%+11,75413F-HRTimeline
SYON CAPITAL LLC29,672$990K0.05%+8,45513F-HRTimeline
State of Alaska, Department of Revenue28,182$940K0.01%-1,39313F-HRTimeline
Hillsdale Investment Management Inc.27,400$915K0.03%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC27,348$913K0.01%+3,27213F-HRTimeline
Mariner, LLCin group Mariner, LLC27,203$908K<0.01%-16,86813F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC27,070$904K<0.01%-66513F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC26,850$896K0.03%+1,82013F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…26,679$891K0.01%-1,33413F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…25,946$866K<0.01%-1,58413F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…25,915$865K0.01%013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…25,206$863K<0.01%+3,50713F-HRTimeline
MML INVESTORS SERVICES, LLC25,855$863K<0.01%-2,65713F-HRTimeline
Lazard Freres Gestion S.A.S.25,830$862K0.02%013F-HRTimeline
EQUITABLE TRUST CO25,756$860K0.04%+8,85813F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.25,344$846K<0.01%-3,20013F-HRTimelineGroup
Patten Group, Inc.25,247$843K0.16%+3,63113F-HRTimeline
CAPITAL GROUP INVESTMENT MANAGEMENT PTE…in group CAPITAL GROUP INVESTMENT MANA…24,540$819K0.14%new13F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC24,159$806K<0.01%+12,02713F-HRTimelineGroup
U.S. Capital Wealth Advisors, LLC23,484$784K0.02%+3,66613F-HRTimeline
HARBOUR INVESTMENTS, INC.23,466$783K0.02%-19213F-HRTimeline
Sciencast Management LP23,390$781K0.15%-42,80413F-HRTimeline
Manchester Capital Management LLC23,165$773K0.1%013F-HRTimeline
Arkadios Wealth Advisors23,029$769K0.02%+78213F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC23,021$768K<0.01%-23,50713F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…22,931$765K<0.01%+74213F-HRTimelineGroup
Elo Mutual Pension Insurance Co22,813$761K0.01%+10,09513F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC22,641$756K<0.01%-88113F-HRTimeline
Cullen Capital Management, LLC22,441$749K0.01%013F-HRTimeline
Scientech Research LLC22,362$746K0.26%new13F-HRTimeline
Financiere des Professionnels - Fonds d…22,144$739K0.04%+1,26413F-HRTimeline
FIRST WILSHIRE SECURITIES MANAGEMENT INC21,500$718K0.19%013F-HRTimeline
Man Group plcin group Man Group plc21,227$709K<0.01%-38,16913F-HRTimelineGroup
Quarry LP21,123$705K0.17%+16,25813F-HRTimeline
SHERBROOKE PARK ADVISERS LLC20,911$698K0.32%new13F-HRTimeline
GREAT LAKES ADVISORS, LLC20,140$672K0.01%+24013F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…20,057$670K0.01%new13F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp19,988$668K<0.01%-20,19013F-HRTimelineGroup
SECURIAN ASSET MANAGEMENT, INC19,680$657K0.02%-38713F-HRTimeline
Sanctuary Advisors, LLC19,629$655K<0.01%+1,40713F-HR/ATimeline
Ballentine Partners, LLC19,579$654K0.01%+1,84913F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC19,401$648K<0.01%new13F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding19,326$645K+705Timeline
EVEXIA WEALTH LLC18,405$636K0.19%+6513F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\19,049$636K<0.01%+72313F-HRTimelineGroup
First Pacific Financial18,890$631K0.09%-66513F-HRTimeline
EVERGREEN CAPITAL MANAGEMENT LLC18,593$621K0.01%+6,10313F-HRTimeline
Argent Trust Co18,585$620K0.02%013F-HRTimeline
GROUP ONE TRADING LLC18,471$617K0.02%new13F-HRTimeline
Federation des caisses Desjardins du Qu…18,344$612K<0.01%+17,60913F-HRTimeline
GC Wealth Management RIA, LLC18,210$608K0.02%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.17,274$592K<0.01%-7613F-HRTimelineGroup
Chicago Partners Investment Group LLC18,018$587K0.02%+6,56413F-HRTimeline
First Business Financial Services, Inc.17,555$586K0.05%013F-HRTimeline
&PARTNERS17,516$582K<0.01%+3,30513F-HRTimeline
NOVEM GROUP17,136$572K0.07%+1,70913F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al16,700$557K<0.01%013F-HRTimeline
NWAM LLC16,461$549K0.03%-1613F-HR/ATimeline
NorthCoast Asset Management LLC16,039$535K<0.01%+10,05413F-HRTimeline
New Hampshire Trust15,765$526K0.1%013F-HRTimeline
Midwest Trust Co15,765$526K0.01%013F-HRTimeline
Ledyard National Bank15,557$519K0.05%-2,62013F-HRTimeline
State of Wyoming15,342$512K0.06%+11,35113F-HRTimeline
DEFINE FINANCIAL, LLC15,330$512K0.31%+2713F-HRTimeline
Compass Wealth Management LLC15,125$505K0.11%013F-HRTimeline
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC15,074$503K0.13%-41,88213F-HRTimelineGroup
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …15,025$502K0.01%013F-HRTimelineGroup
Graham Capital Management, L.P.15,003$501K0.02%+8,33413F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.14,271$476K0.04%-35,17913F-HRTimeline
Snowden Capital Advisors LLC14,237$475K0.01%-43613F-HRTimeline
Baker Avenue Asset Management, LP14,178$473K0.01%+6,28913F-HRTimeline
Utah Retirement Systems14,116$471K<0.01%013F-HRTimeline
SWP FINANCIAL LLC14,075$470K0.24%013F-HRTimeline
Aster Capital Management (DIFC) Ltd13,828$462K0.23%+9,62813F-HRTimeline
Perbak Capital Partners LLP13,752$459K0.08%new13F-HRTimeline
ELCO Management Co., LLC13,697$457K0.24%-1,56313F-HRTimeline
Trium Capital LLP13,672$456K0.18%+4,18813F-HRTimeline
HighPoint Advisor Group LLC13,565$453K0.02%+61213F-HRTimeline
Janney Montgomery Scott LLC13,547$452K<0.01%-1,43013F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC13,374$446K0.01%+5,20913F-HRTimeline
Sterling Capital Management LLC13,291$444K0.01%-98513F-HRTimeline
J.W. COLE ADVISORS, INC.13,044$435K0.01%-17213F-HRTimeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding12,984$433K-748Timeline
Pure Financial Advisors, LLC12,943$432K0.01%-4,07913F-HRTimeline
AdvisorShares Investments LLC12,739$425K0.07%new13F-HRTimeline
Maryland State Retirement & Pension Sys…12,454$416K0.01%013F-HRTimeline
CHOREO, LLC12,393$414K0.01%+5,28413F-HRTimeline
SHELTON CAPITAL MANAGEMENT12,271$410K0.01%-26813F-HRTimeline
RWC Asset Management LLPin group RWC ASSET ADVISORS (US) LLC12,253$409K0.02%+32213F-HRTimelineGroup
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC12,237$408K<0.01%+68513F-HRTimelineGroup
Cynosure Group, LLC12,132$405K0.04%013F-HR/ATimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC12,100$404K<0.01%+26013F-HRTimelineGroup
Advisory Services Network, LLC12,077$403K0.01%+23713F-HRTimeline
Aureus Asset Management, LLC12,065$403K0.03%013F-HRTimeline
Versant Capital Management, Inc12,056$402K0.05%+2,26413F-HRTimeline
TRUST POINT INC.12,025$401K0.03%+2,02713F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC11,738$392K0.02%new13F-HRTimelineGroup
Hilltop Holdings Inc.in group Hilltop Holdings Inc.11,715$391K0.02%-65813F-HRTimelineGroup
Fieldview Capital Management, LLC11,516$384K0.06%new13F-HRTimeline
Groupe la Francaisein group Groupe la Francaise11,500$384K0.01%013F-HRTimelineGroup
NORTH STAR ASSET MANAGEMENT INC11,500$384K0.02%013F-HRTimeline
Laird Norton Wetherby Wealth Management…11,465$383K0.02%+58613F-HRTimeline
WORMSER FRERES GESTION11,444$382K0.21%+17413F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK11,335$378K<0.01%-84713F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP11,220$375K0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
ProShare Advisors LLC11,176$373K<0.01%-50813F-HRTimeline
Rathbones Group PLC11,069$369K<0.01%-15,17113F-HRTimeline
Steward Partners Investment Advisory, L…10,918$364K<0.01%+5,92213F-HRTimeline
MGO ONE SEVEN LLC10,822$361K0.01%+9913F-HRTimeline
Dynamic Advisor Solutions LLC10,790$360K0.01%-32213F-HRTimeline
Cambridge Investment Research Advisors,…10,753$359K<0.01%-19,98513F-HRTimeline
Bayforest Capital Ltd10,630$355K0.17%new13F-HRTimeline
IFP Advisors, Inc10,380$346K0.01%+42413F-HR/ATimeline
NewEdge Wealth, LLC10,608$346K<0.01%+2,78713F-HRTimeline
DIVERSIFIED TRUST CO10,326$345K0.01%+10413F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…10,269$343K0.01%-8,07113F-HRTimelineGroup
Holocene Advisors, LP10,123$338K<0.01%-60,63813F-HRTimeline
HUB Investment Partners, LLC9,841$328K0.01%+3,88013F-HRTimeline
Bank Julius Baer & Co. Ltd, Zurich9,500$317K<0.01%-3,00013F-HRTimeline
HB Wealth Management, LLC9,480$316K<0.01%+3,19513F-HRTimeline
PRAXIS INVESTMENT MANAGEMENT INC9,380$313K0.02%013F-HRTimeline
INSIGNEO ADVISORY SERVICES, LLC9,303$311K0.02%+66413F-HRTimeline
MQS Management LLC9,211$307K0.18%new13F-HRTimeline
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…9,160$307K<0.01%-1,30013F-HRTimelineGroup
OneDigital Investment Advisors LLC9,162$306K<0.01%+32813F-HRTimeline
Cresset Asset Management, LLC9,090$303K<0.01%+1,92913F-HR/ATimeline
Merit Financial Group, LLC9,050$302K<0.01%+16113F-HR/ATimeline
Modern Wealth Management, LLC8,914$298K0.01%+1,95313F-HRTimeline
Headlands Technologies LLC8,789$293K0.02%-27,31713F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC8,738$292K<0.01%-18613F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC8,724$291K<0.01%-65013F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…8,676$290K0.01%new13F-HRTimeline