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Disclosery

TTEK TETRA TECH INC NEW

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COM (common), issuer CIK 831641

576 managers (594 13F filers) reported a position in TTEK shares at 2026-03-31, 243,536,694 shares in all. 65 filers opened a position and 85 filers sold out during the quarter.

Managers
576
13F filers
594
New
65
Added
201
Reduced
230
Sold out
85
Shares held by filers
243,536,694

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
PRAXIS INVESTMENT MANAGEMENT INC8,060$243K0.01%-1,32013F-HRTimeline
KBC Group NVin group KBC Group NV7,936$239K<0.01%+1,12013F-HRTimelineGroup
Sequoia Financial Advisors, LLC7,723$233K<0.01%-2,94313F-HRTimeline
North Dakota State Investment Board7,675$231K0.01%-1,61013F-HRTimeline
NewEdge Wealth, LLC7,556$228K<0.01%-2,33813F-HRTimeline
Crestwood Advisors Group, LLC7,548$227K<0.01%+1,35413F-HRTimeline
Marex Group Ltdin group Marex Group Ltd7,526$227K<0.01%new13F-HRTimelineGroup
PHILADELPHIA TRUST CO7,500$226K0.02%013F-HRTimeline
Sterling Capital Management LLC7,444$224K<0.01%-5,55113F-HRTimeline
New England Professional Planning Group…7,415$223K0.09%013F-HRTimeline
Vise Technologies, Inc.6,564$220K<0.01%013F-HRTimeline
Pinnacle Financial Partners, Inc.in group Pinnacle Financial Partners, …7,305$220K<0.01%013F-HRTimelineGroup
Fiduciary Trust Coin group Fiduciary Trust Co7,225$218K<0.01%-25013F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC7,149$215K<0.01%new13F-HRTimelineGroup
NOVEM GROUP7,106$214K0.02%-2,23913F-HRTimeline
Olympiad Research LP7,062$213K0.65%new13F-HRTimeline
EP Wealth Advisors, LLC6,982$210K<0.01%-1,56913F-HRTimeline
Brooklyn Investment Group6,901$208K0.01%+80413F-HRTimeline
CHOREO, LLC6,896$208K<0.01%+16213F-HRTimeline
Modern Wealth Management, LLC6,547$201K<0.01%-2,59513F-HRTimeline
GAMMA Investing LLC6,584$198K0.01%-1,52013F-HRTimeline
Farther Finance Advisors, LLC6,361$195K<0.01%-1,39113F-HRTimeline
STRS OHIO6,215$187K<0.01%-7413F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC6,136$185K<0.01%+4,87313F-HRTimeline
GROUP ONE TRADING LLC5,709$172K0.01%+4,55313F-HRTimeline
Blue Trust, Inc.5,706$172K<0.01%+4,10413F-HRTimeline
IFP Advisors, Inc4,912$148K<0.01%-3,44613F-HRTimeline
Parallel Advisors, LLC4,799$145K<0.01%+35913F-HR/ATimeline
HANTZ FINANCIAL SERVICES, INC.4,792$144K<0.01%-31313F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Vestcor Inc4,699$142K<0.01%new13F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC4,697$141K<0.01%+73313F-HRTimelineGroup
SIGNATUREFD, LLC4,689$141K<0.01%-1,48713F-HRTimeline
Quarry LP4,182$126K0.03%new13F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO3,877$117K<0.01%+10413F-HRTimelineGroup
Compagnie Lombard Odier SCmA3,800$114K<0.01%013F-HRTimeline
Horizon Investments, LLC3,724$112K<0.01%-51,96713F-HRTimeline
Eurizon Capital SGR S.p.A.3,729$112K<0.01%+57413F-HRTimeline
ALBION FINANCIAL GROUP /UT3,625$109K0.01%013F-HRTimeline
Allworth Financial LP3,597$108K<0.01%-1,01113F-HRTimeline
Arax Advisory Partners3,453$104K<0.01%-90113F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP3,379$101K<0.01%+35413F-HRTimelineGroup
PALLADIEM, LLC2,950$91K0.09%013F-HRTimeline
Leonteq Securities AG2,671$80.5K<0.01%-1,46113F-HRTimeline
GLOBEFLEX CAPITAL L P2,500$75.3K0.01%013F-HRTimeline
MONETARY MANAGEMENT GROUP INC2,500$75.3K0.02%-2,00013F-HRTimeline
CVA Family Office, LLC2,472$74.5K0.01%+23713F-HRTimeline
Larson Financial Group LLC2,087$62.9K<0.01%+39613F-HRTimeline
Clearstead Advisors, LLC2,075$62.5K<0.01%-1,22113F-HRTimeline
WHITTIER TRUST CO1,915$59.7K<0.01%-31,00013F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …1,932$58K<0.01%+1,33813F-HRTimelineGroup
MassMutual Private Wealth & Trust, FSB1,925$58K<0.01%-32813F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.1,877$56.5K<0.01%-1,01913F-HRTimelineGroup
CENTRAL TRUST Co1,875$56.5K<0.01%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…1,802$55.4K<0.01%-54013F-HRTimeline
Wilmington Savings Fund Society, FSB1,631$49.1K<0.01%013F-HRTimeline
Golden State Wealth Management, LLC1,529$46.1K0.01%+1,50013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,408$42.4K<0.01%-1,53913F-HR/ATimelineGroup
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC1,306$39.3K<0.01%new13F-HRTimelineGroup
Capital Advisors, Ltd. LLC1,290$39K<0.01%-1,98213F-HRTimeline
MAI Capital Management1,272$38.3K<0.01%+18013F-HRTimeline
HM PAYSON & CO1,250$37.6K<0.01%013F-HRTimeline
SJS Investment Consulting Inc.1,184$35.7K<0.01%-813F-HRTimeline
Evelyn Partners Investment Management S…in group Evelyn Partners Group Ltd1,155$34.8K<0.01%new13F-HRTimelineGroup
Spire Wealth Managementin group Spire Wealth Management1,152$34.7K<0.01%-31813F-HRTimelineGroup
OP Asset Management Ltd1,134$34.2K<0.01%013F-HR/ATimeline
Asset Planning,Inc1,000$30.1K0.02%013F-HRTimeline
CX Institutional994$30K<0.01%+65813F-HRTimeline
Strategic Wealth Partners, Ltd.947$28.5K<0.01%-10013F-HRTimeline
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…900$27.2K<0.01%013F-HRTimeline
True Wealth Design, LLC875$26.4K0.01%-513F-HRTimeline
Manchester Capital Management LLC796$24K<0.01%+18613F-HRTimeline
FINANCIAL CONSULATE, INC775$23.3K<0.01%013F-HRTimeline
BFSG, LLC750$22.6K<0.01%013F-HRTimeline
Sound Income Strategies, LLC730$22.4K<0.01%+113F-HRTimeline
Wilkerson Advisory Group LLC744$22.4K0.01%-5,95413F-HRTimeline
Essential Investment Partners LLC660$19.9K0.02%013F-HRTimeline
Parkside Financial Bank & Trust650$19.6K<0.01%+23013F-HRTimeline
Twin Tree Management, LP645$19.4K<0.01%new13F-HRTimeline
Trust Co626$18.9K<0.01%+113F-HRTimeline
Root Financial Partners, LLC600$18.1K<0.01%-1613F-HRTimeline
Plante Moran Financial Advisors, LLC595$17.9K<0.01%013F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…585$17.6K<0.01%013F-HRTimelineGroup
VEGA INVESTMENT SOLUTIONS574$17.3K<0.01%013F-HRTimeline
REXFORD CAPITAL INC525$15.8K0.01%013F-HRTimeline
Kemnay Advisory Services Inc.505$15.2K<0.01%new13F-HRTimeline
Guinness Asset Management LTD489$14.7K<0.01%013F-HRTimeline
FIRST HORIZON CORP450$13.6K<0.01%-43013F-HRTimeline
Smartleaf Asset Management LLC455$13.5K<0.01%+14513F-HRTimeline
ROTHSCHILD INVESTMENT LLC439$13.2K<0.01%-1,46813F-HRTimeline
CBIZ Investment Advisory Services, LLC402$12.1K<0.01%-69513F-HRTimeline
Covestor Ltd338$10K0.01%-17213F-HRTimeline
Glen Eagle Advisors, LLC332$9.99K<0.01%013F-HRTimeline
Rossby Financial, LCC322$9.89K<0.01%+26713F-HRTimeline
Basecamp Wealth Advisors LLC313$9.43K<0.01%+13313F-HRTimeline
DANSKE BANK A/S300$9.04K<0.01%-1,30013F-HRTimeline
Clal Insurance Enterprises Holdings Ltdin group Clal Insurance Enterprises Ho…256$8K<0.01%+7413F-HRTimelineGroup
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp264$7.97K<0.01%+813F-HRTimelineGroup
Elequin Capital, LP254$7.65K<0.01%+1913F-HRTimeline
TD Waterhouse Canada Inc.250$7.65K<0.01%new13F-HRTimeline
Mascoma Wealth Management LLC250$7.53K<0.01%013F-HRTimeline
Westside Investment Management, Inc.239$7.42K<0.01%013F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…225$6.78K<0.01%013F-HRTimelineGroup
Retirement Wealth Solutions LLC216$6.51K<0.01%-11613F-HRTimeline
N.E.W. Advisory Services LLC215$6.48K<0.01%013F-HRTimeline
Gunpowder Capital Management, LLC dba O…212$6.38K<0.01%013F-HRTimeline
Dunhill Financial, LLC202$6.1K<0.01%+15413F-HRTimeline
MASECO LLP197$5.93K<0.01%new13F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.190$5.72K<0.01%new13F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC183$5.51K<0.01%new13F-HRTimelineGroup
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.176$5.3K<0.01%013F-HR/ATimelineGroup
Sunbelt Securities, Inc.175$5.27K<0.01%-1813F-HRTimeline
CAPITAL & PLANNING, LLC170$5.12K<0.01%new13F-HRTimeline
MEEDER ASSET MANAGEMENT INCin group Meeder Advisory Services, Inc.140$4.22K<0.01%new13F-HRTimelineGroup
Activest Wealth Management140$4.22K<0.01%-21113F-HRTimeline
Pinnacle Wealth Planning Services, Inc.127$3.83K<0.01%013F-HRTimeline
James T. Borello RIA123$3.71K<0.01%new13F-HRTimeline
BAYBAN122$3.67K<0.01%013F-HRTimeline
High Note Wealth, LLC121$3.65K<0.01%013F-HRTimeline
NewEdge Advisors, LLC120$3.61K<0.01%-55513F-HR/ATimeline
Fortitude Family Office, LLC120$3.61K<0.01%+7113F-HRTimeline
JFS WEALTH ADVISORS, LLC115$3.46K<0.01%-1113F-HRTimeline
Synergy Investment Management, LLC111$3.34K<0.01%new13F-HRTimeline
MATHER GROUP, LLC.108$3.25K<0.01%new13F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC102$3.18K<0.01%+4213F-HRTimeline
SBI Securities Co., Ltd.104$3.13K<0.01%-1613F-HRTimeline
Caitlin John, LLC101$3.04K<0.01%new13F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC100$3K<0.01%013F-HRTimelineGroup
Whipplewood Advisors, LLC90$2.71K<0.01%new13F-HRTimeline
Wealth Enhancement Trust Services, Inc.85$2.56K<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC80$2.41K<0.01%-23013F-HRTimeline
WPG Advisers, LLC77$2.32K<0.01%-37613F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC75$2.26K<0.01%013F-HRTimelineGroup
ARMSTRONG ADVISORY GROUP, INC73$2.2K<0.01%013F-HRTimeline
Quent Capital, LLC68$2.05K<0.01%-29413F-HRTimeline
Keating Financial Advisory Services, In…67$2.02K<0.01%-3113F-HRTimeline
HAZLETT, BURT & WATSON, INC.66$2K<0.01%013F-HRTimeline
Cornerstone Planning Group LLC56$1.75K<0.01%-58513F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…57$1.72K<0.01%+913F-HRTimelineGroup
Anchor Investment Management, LLC55$1.66K<0.01%013F-HRTimeline
HIGHLINE WEALTH PARTNERS LLC53$1.6K<0.01%new13F-HRTimeline
Lummis Asset Management, LP50$1.51K<0.01%013F-HRTimeline
Steigerwald, Gordon & Koch Inc.49$1.48K<0.01%013F-HRTimeline
CoreCap Advisors, LLC45$1.35K<0.01%013F-HRTimeline
Cromwell Holdings LLC43$1.29K<0.01%+1213F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV41$1.24K<0.01%013F-HRTimeline
Rialto Wealth Management, LLC41$1.24K<0.01%+513F-HRTimeline
Financial Management Professionals, Inc.40$1.21K<0.01%013F-HRTimeline
Bell Investment Advisors, Inc40$1.21K<0.01%013F-HRTimeline
Ascentis Independent Advisorsin group Ascentis Wealth Management, L…35$1.06K<0.01%new13F-HRTimelineGroup
Principia Wealth Advisory, LLC35$1.05K<0.01%-513F-HRTimeline
Essential Partners LLC35$1.05K<0.01%-2,91613F-HRTimeline
Avion Wealth58$1K<0.01%013F-HRTimeline
Bay Harbor Wealth Management, LLC33$993<0.01%+1513F-HRTimeline
DiNuzzo Private Wealth, Inc.32$964<0.01%-113F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC26$784<0.01%-10113F-HRTimeline
NBT BANK, N.A.in group NBT BANK, N.A.25$753<0.01%new13F-HRTimelineGroup
Signature Equity Partners, LLC25$753<0.01%-20313F-HRTimeline
Intentional Wealth Strategies, LLC24$723<0.01%13F-HRTimeline
Private Wealth Management Group, LLC20$603<0.01%-4513F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC19$572<0.01%new13F-HRTimeline
Bogart Wealth, LLC16$482<0.01%-1613F-HRTimeline
Hughes Financial Services, LLC16$482<0.01%013F-HRTimeline
Vermillion Wealth Management, Inc.15$452<0.01%new13F-HRTimeline
DecisionPoint Financial, LLC13$392<0.01%013F-HRTimeline
Bare Financial Services, Inc12$361<0.01%013F-HRTimeline
HFM Investment Advisors, LLC10$301<0.01%-413F-HRTimeline
SouthState Bank Corpin group SouthState Bank Corp5$151<0.01%-7913F-HRTimelineGroup
Owl Creek Wealth Partners LLC5$151<0.01%13F-HRTimeline
IMA Advisory Services, Inc.5$150<0.01%013F-HRTimeline
AdvisorNet Financial, Inc2$60<0.01%-1013F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC2$60<0.01%new13F-HRTimeline
Raleigh Capital Management Inc.1$40<0.01%013F-HRTimeline
Quaker Wealth Management, LLC1$31<0.01%-1713F-HRTimeline
SUMMIT SECURITIES GROUP LLC1$30<0.01%new13F-HRTimeline
CURIO WEALTH, LLC1$30<0.01%new13F-HRTimeline
Strengthening Families & Communities, L…0$1<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.