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Disclosery

TTEK TETRA TECH INC NEW

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COM (common), issuer CIK 831641

535 managers (555 13F filers) reported a position in TTEK shares at 2026-06-30, 253,342,466 shares in all. 48 filers opened a position and 86 filers sold out during the quarter.

Managers
535
13F filers
555
New
48
Added
206
Reduced
214
Sold out
86
Shares held by filers
253,342,466

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Horizon Investments, LLC4,404$127K<0.01%+68013F-HRTimeline
Compagnie Lombard Odier SCmA3,800$110K<0.01%013F-HRTimeline
Eurizon Capital SGR S.p.A.3,729$108K<0.01%013F-HRTimeline
ALBION FINANCIAL GROUP /UT3,625$105K0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP3,520$103K<0.01%+14113F-HRTimelineGroup
GAMMA Investing LLC3,501$101K<0.01%-3,08313F-HRTimeline
PALLADIEM, LLC2,950$85.2K0.08%013F-HRTimeline
CVA Family Office, LLC2,753$79.5K0.01%+28113F-HRTimeline
Employees Retirement System of Texas2,738$79K<0.01%new13F-HRTimeline
GLOBEFLEX CAPITAL L P2,500$72.2K0.01%013F-HRTimeline
MONETARY MANAGEMENT GROUP INC2,500$72.2K0.01%013F-HRTimeline
Clearstead Advisors, LLC2,441$70.5K<0.01%+36613F-HRTimeline
Essential Partners LLC2,411$69.7K0.03%+2,37613F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)2,403$69.4K<0.01%-45,24113F-HRTimeline
Leonteq Securities AG2,349$67.9K<0.01%-32213F-HRTimeline
IFP Advisors, Inc2,292$66.2K<0.01%-2,62013F-HRTimeline
WHITTIER TRUST CO1,915$59.7K<0.01%013F-HRTimeline
Parallel Advisors, LLC1,962$56.7K<0.01%-2,83713F-HRTimeline
Harvest Fund Management Co., Ltdin group Harvest Fund Management Co., …1,932$56K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC1,917$55.4K<0.01%-17013F-HRTimeline
SBI Securities Co., Ltd.1,904$55K<0.01%+1,80013F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.1,895$54.7K<0.01%+1813F-HRTimelineGroup
CENTRAL TRUST Co1,875$54.2K<0.01%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…1,806$52.7K<0.01%+413F-HRTimeline
Wilmington Savings Fund Society, FSB1,701$49.1K<0.01%+7013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,313$37.9K<0.01%-9513F-HRTimelineGroup
Capital Advisors, Ltd. LLC1,270$37K<0.01%-2013F-HRTimeline
HM PAYSON & CO1,250$36.1K<0.01%013F-HRTimeline
SIGNATUREFD, LLC1,206$34.8K<0.01%-3,48313F-HRTimeline
Evelyn Partners Group Ltdin group Evelyn Partners Group Ltd1,155$33.4K<0.01%13F-HRTimelineGroup
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO1,143$33K<0.01%-2,73413F-HRTimelineGroup
OP Asset Management Ltd1,134$32.8K<0.01%013F-HRTimeline
Versant Capital Management, Inc1,121$32.4K<0.01%-9,44913F-HRTimeline
BAILLIE GIFFORD & COin group BAILLIE GIFFORD & CO1,114$32.2K<0.01%-312,45113F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP1,071$30.9K<0.01%-158,32713F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Asset Planning,Inc1,000$28.9K0.02%013F-HRTimeline
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…900$26K<0.01%013F-HRTimeline
Buck Wealth Strategies, LLC892$25.8K<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.861$24.9K<0.01%-32313F-HRTimeline
FINANCIAL CONSULATE, INC775$22.4K<0.01%013F-HRTimeline
BFSG, LLC750$21.7K<0.01%013F-HRTimeline
True Wealth Design, LLC712$20.6K<0.01%-16313F-HRTimeline
Copeland Capital Management, LLC670$19.4K<0.01%-365,21413F-HRTimeline
Essential Investment Partners LLC660$19.1K0.02%013F-HRTimeline
Wilkerson Advisory Group LLC653$18.9K0.01%-9113F-HRTimeline
Parkside Financial Bank & Trust620$17.9K<0.01%-3013F-HRTimeline
Quent Capital, LLC564$16.3K<0.01%+49613F-HRTimeline
Manchester Capital Management LLC551$15.9K<0.01%-24513F-HRTimeline
REXFORD CAPITAL INC525$15.2K0.01%013F-HRTimeline
Guinness Asset Management LTD489$14.1K<0.01%013F-HRTimeline
Smartleaf Asset Management LLC455$13.1K<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.450$13.1K<0.01%+20013F-HRTimeline
Covestor Ltd439$13K0.01%+10113F-HRTimeline
CBIZ Investment Advisory Services, LLC402$12.1K<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC386$11.2K<0.01%-5313F-HRTimeline
MassMutual Private Wealth & Trust, FSB378$10.9K<0.01%-1,54713F-HRTimeline
FIDUCIARY FINANCIAL ADVISORS360$10.3K<0.01%new13F-HRTimeline
MASECO LLP352$10.2K<0.01%+15513F-HRTimeline
Glen Eagle Advisors, LLC332$9.58K<0.01%013F-HRTimeline
HIGHLINE WEALTH PARTNERS LLC328$9.48K<0.01%+27513F-HRTimeline
CX Institutional312$9K<0.01%-68213F-HRTimeline
DANSKE BANK A/S300$8.67K<0.01%013F-HRTimeline
Kemnay Advisory Services Inc.290$8.38K<0.01%-21513F-HRTimeline
Silver Grove Financial Group, Inc.288$8.32K<0.01%new13F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC279$8.06K<0.01%+25313F-HRTimeline
ASSETMARK, INCin group ASSETMARK, INC272$7.86K<0.01%-4,42513F-HRTimelineGroup
Elequin Capital, LP270$7.8K<0.01%+1613F-HRTimeline
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.269$7.77K<0.01%+9313F-HRTimelineGroup
Rossby Financial, LCC260$7.51K<0.01%-6213F-HRTimeline
Mascoma Wealth Management LLC250$7.22K<0.01%013F-HRTimeline
FIRST HORIZON CORP245$7.08K<0.01%-20513F-HRTimeline
Activest Wealth Management244$7.05K<0.01%+10413F-HRTimeline
Clal Insurance Enterprises Holdings Ltdin group Clal Insurance Enterprises Ho…238$7K<0.01%-1813F-HRTimelineGroup
Westside Investment Management, Inc.239$6.9K<0.01%013F-HRTimeline
Dunhill Financial, LLC240$6.74K<0.01%+3813F-HRTimeline
FARMERS & MERCHANTS INVESTMENTS INCin group FARMERS & MERCHANTS INVESTMEN…225$6.5K<0.01%013F-HRTimelineGroup
Dogwood Wealth Management LLC220$6.36K<0.01%new13F-HRTimeline
N.E.W. Advisory Services LLC215$6.21K<0.01%013F-HRTimeline
WESTPAC BANKING CORPin group WESTPAC BANKING CORP214$6.18K<0.01%new13F-HRTimelineGroup
Gunpowder Capital Management, LLC dba O…212$6.12K<0.01%013F-HRTimeline
MATHER GROUP, LLC.208$6.01K<0.01%+10013F-HRTimeline
Plato Investment Management Ltd190$5.46K<0.01%new13F-HRTimeline
Synergy Investment Management, LLC151$4.55K<0.01%+4013F-HRTimeline
Retirement Wealth Solutions LLC149$4.31K<0.01%-6713F-HRTimeline
BAYBAN122$3.52K<0.01%013F-HRTimeline
NewEdge Advisors, LLC120$3.47K<0.01%013F-HRTimeline
Pinnacle Wealth Planning Services, Inc.110$3.18K<0.01%-1713F-HRTimeline
LRI Investments, LLC110$3.18K<0.01%new13F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC102$3.15K<0.01%013F-HRTimeline
AMERIFLEX GROUP, INC.105$3.03K<0.01%new13F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC100$3K<0.01%013F-HRTimelineGroup
Caitlin John, LLC101$2.93K<0.01%013F-HRTimeline
Prestige Wealth Management Group LLC80$2.31K<0.01%013F-HRTimeline
Cromwell Holdings LLC79$2.28K<0.01%+3613F-HRTimeline
Rialto Wealth Management, LLC77$2.23K<0.01%+3613F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC73$2.11K<0.01%013F-HRTimeline
Strategic Wealth Partners, Ltd.72$2.08K<0.01%-87513F-HRTimeline
JFS WEALTH ADVISORS, LLC63$1.82K<0.01%-5213F-HRTimeline
High Note Wealth, LLC60$1.73K<0.01%-6113F-HRTimeline
Anchor Investment Management, LLC55$1.59K<0.01%013F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC53$1.53K<0.01%-1,25313F-HRTimelineGroup
Steigerwald, Gordon & Koch Inc.49$1.42K<0.01%013F-HRTimeline
Cornerstone Planning Group LLC45$1.4K<0.01%-1113F-HRTimeline
Fortitude Family Office, LLC46$1.33K<0.01%-7413F-HRTimeline
Bare Financial Services, Inc46$1.33K<0.01%+3413F-HRTimeline
MJT & Associates Financial Advisory Gro…43$1.24K<0.01%new13F-HRTimeline
CoreCap Advisors, LLC43$1.24K<0.01%-213F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV41$1.18K<0.01%013F-HRTimeline
Financial Management Professionals, Inc.40$1.16K<0.01%013F-HRTimeline
Avion Wealth41$1K<0.01%-1713F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…31$900<0.01%-2613F-HRTimelineGroup
DiNuzzo Private Wealth, Inc.31$896<0.01%-113F-HRTimeline
Golden State Wealth Management, LLC29$838<0.01%-1,50013F-HRTimeline
Keating Financial Advisory Services, In…27$780<0.01%-4013F-HRTimeline
Sachetta, LLC26$752<0.01%new13F-HRTimeline
NBT BANK, N.A.in group NBT BANK, N.A.25$722<0.01%013F-HRTimelineGroup
Bay Harbor Wealth Management, LLC23$664<0.01%-1013F-HRTimeline
Creative Capital Management Investments…22$636<0.01%new13F-HRTimeline
Private Wealth Management Group, LLC21$607<0.01%+113F-HRTimeline
Marquette Asset Management, LLC18$521<0.01%new13F-HRTimeline
HFM Investment Advisors, LLC18$521<0.01%+813F-HRTimeline
Quarry LP17$491<0.01%-4,16513F-HRTimeline
Hughes Financial Services, LLC16$462<0.01%013F-HRTimeline
WPG Advisers, LLC10$289<0.01%-6713F-HRTimeline
DecisionPoint Financial, LLC6$176<0.01%-713F-HRTimeline
Planning Strategies Inc.6$173<0.01%13F-HRTimeline
Quaker Wealth Management, LLC4$116<0.01%+313F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC3$87<0.01%+113F-HRTimeline
MV CAPITAL MANAGEMENT, INC.2$58<0.01%new13F-HR/ATimeline
MARYLAND CAPITAL ADVISORS INC.2$58<0.01%13F-HRTimeline
Principia Wealth Advisory, LLC2$58<0.01%-3313F-HRTimeline
Raleigh Capital Management Inc.1$39<0.01%013F-HRTimeline
ROSS\JOHNSON & Associates LLC1$29<0.01%new13F-HRTimeline
Strengthening Families & Communities, L…0$1<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.
Navigoe, LLC1$00%new13F-HRTimelineValue filed as zero, left out of ratios.