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Disclosery

COST COSTCO WHOLESALE CORPORATION

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COM (common), issuer CIK 909832

Filings received so far for Q3 2026: 231 13F filers report a position in COST shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.

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 2026

Filers in the available 13F reports with a share position at 2026-09-30, 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
CONGRESS ASSET MANAGEMENT CO201,044$183M1.19%-7,80713F-HRTimeline
STEGINSKY CAPITAL LLC133,430$121M19.92%-1,84113F-HRTimeline
Mn Services Vermogensbeheer B.V.131,066$119M0.89%+1,80013F-HRTimeline
SAPIENT CAPITAL LLC72,244$65.8M0.88%-56213F-HRTimeline
Norman Fields, Gottscho Capital Managem…57,161$52M15.83%-4213F-HRTimeline
Violich Capital Management, Inc.45,120$41.1M4.43%-1,61413F-HRTimeline
YHB Investment Advisors, Inc.41,507$37.8M2.38%-60513F-HRTimeline
Lincoln Capital LLC33,963$31M5.44%-24813F-HRTimeline
PARK NATIONAL CORP /OH/33,235$30.3M0.82%-3,51613F-HRTimeline
Farther Finance Advisors, LLC32,263$29.4M0.21%+4,72713F-HRTimeline
Gradient Investments LLCin group Gradient Investments LLC28,115$25.6M0.37%+53013F-HRTimelineGroup
NEVILLE RODIE & SHAW INC27,208$24.8M1.68%-3,16313F-HRTimeline
Bath Savings Trust Co25,737$23.4M2.43%+31713F-HRTimeline
NORTH POINT PORTFOLIO MANAGERS CORP/OH23,969$21.8M3.67%-63213F-HRTimeline
JACOBS & CO/CA23,824$21.7M1.87%+14013F-HRTimeline
FERGUSON WELLMAN CAPITAL MANAGEMENT, INC20,747$18.9M0.23%-94613F-HRTimeline
Oak Grove Capital LLC19,363$17.6M1.05%-7513F-HRTimeline
AMERICAN NATIONAL BANK & TRUST19,307$17.6M1.61%-2,00713F-HRTimeline
EASTERN BANK18,617$16.9M0.26%-5013F-HRTimeline
MassMutual Private Wealth & Trust, FSB15,383$14M0.37%-51513F-HRTimeline
Gouws Capital LLC13,201$12M5.68%+10813F-HRTimeline
S.E.E.D. Planning Group LLC13,191$12M2.94%+55413F-HRTimeline
CENTRAL BANK & TRUST CO13,078$11.9M1.7%-10213F-HRTimeline
CYPRESS ASSET MANAGEMENT INC/TX13,073$11.9M2.35%-21813F-HRTimeline
GAMMA Investing LLC12,350$11.2M0.38%-41313F-HRTimeline
TOMPKINS FINANCIAL CORPin group TOMPKINS FINANCIAL CORP11,823$10.8M0.76%-54013F-HRTimelineGroup
Defender Capital, LLC.11,555$10.5M3.3%+5513F-HRTimeline
Venture Visionary Partners LLC10,546$9.6M0.25%+18013F-HRTimeline
WoodTrust Financial Corpin group WoodTrust Financial Corp9,530$8.68M1.05%+913F-HRTimelineGroup
DLK Investment Management, LLC9,426$8.58M3.12%-23013F-HRTimeline
Stokes Capital Advisors, LLC9,350$8.51M1.87%-60613F-HRTimeline
Legacy Private Trust Co.8,922$8.12M0.45%+32513F-HRTimeline
Valeo Financial Advisors, LLC8,735$7.95M0.17%-44613F-HRTimeline
CapWealth Advisors, LLC8,728$7.95M0.6%-12913F-HRTimeline
Coastline Trust Co8,726$7.94M0.74%-1,50513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
ZEVENBERGEN CAPITAL INVESTMENTS LLC8,303$7.56M0.17%+10013F-HRTimeline
Wedmont Private Capital7,851$7.44M0.18%+97213F-HRTimeline
ROCKLAND TRUST CO8,047$7.33M0.28%+413F-HRTimeline
Eastover Investment Advisors LLC7,838$7.14M2.77%-16913F-HRTimeline
Montecito Bank & Trust7,619$6.94M1.05%-3013F-HRTimeline
Grove Bank & Trust7,380$6.72M0.67%-2613F-HRTimeline
CX Institutional7,152$6.51M0.18%+26613F-HRTimeline
Capital Advisors Wealth Management, LLC6,114$5.57M0.63%-2513F-HRTimeline
Galvin, Gaustad & Stein, LLC5,655$5.15M0.39%-42813F-HRTimeline
Mirador Capital Partners LP5,476$4.98M0.58%+11013F-HRTimeline
SCHAPER BENZ & WISE INVESTMENT COUNSEL …5,453$4.96M0.33%+63313F-HRTimeline
Bank of New Hampshire5,371$4.89M1.06%-6413F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…5,306$4.83M0.4%+1,10813F-HRTimelineGroup
Apella Capital, LLC5,096$4.8M0.06%+59513F-HRTimeline
CoreCap Advisors, LLC5,224$4.76M0.14%+10713F-HRTimeline
Greenfield Savings Bank4,948$4.5M1.7%-1213F-HRTimeline
Atlas Brown,Inc.4,830$4.4M1.16%-113F-HRTimeline
HWG Holdings LP4,703$4.28M0.99%-78813F-HRTimeline
Wealth Enhancement Trust Services, Inc.4,682$4.26M0.46%-52013F-HRTimeline
Avidian Wealth Enterprises, LLC4,592$4.18M0.12%+37413F-HRTimeline
ARGUS INVESTORS' COUNSEL, INC.4,252$3.87M3.01%+813F-HRTimeline
Everhart Financial Group, Inc.4,232$3.85M0.24%-46513F-HRTimeline
Ebert Capital Management Inc.4,143$3.77M3.28%-3713F-HRTimeline
DAVIDSON TRUST CO4,101$3.73M1.48%-27013F-HRTimeline
Cooper Financial Group4,096$3.73M0.3%-11213F-HRTimeline
Nautilus Advisors LLC4,001$3.64M2.2%+35613F-HRTimeline
Gallagher Capital Advisors, LLC3,976$3.62M1.94%-4813F-HRTimeline
Polaris Financial Partners3,705$3.41M1.52%13F-HRTimeline
Douglas Lane & Associates, LLC3,661$3.33M0.04%-39213F-HRTimeline
Werlinich Asset Management, LLC3,624$3.3M1.28%013F-HRTimeline
Capital Planning LLC3,605$3.28M0.87%-713F-HRTimeline
Castle Rock Wealth Management, LLC3,453$3.23M0.61%-27213F-HRTimeline
LifeGoal Investments, LLC3,467$3.16M0.96%+2,96313F-HRTimeline
Shelter Rock Management, LLC3,374$3.08M2.87%+15613F-HRTimeline
BENEDICT FINANCIAL ADVISORS INC3,249$2.96M0.59%-5213F-HRTimeline
Central Pacific Bank - Trust Division3,196$2.91M0.31%-60113F-HRTimeline
TOTH FINANCIAL ADVISORY CORP2,858$2.6M0.26%-413F-HRTimeline
ARGENT CAPITAL MANAGEMENT LLC2,470$2.25M0.07%-1013F-HRTimeline
Emprise Bank2,427$2.21M0.84%-4013F-HRTimeline
Matrix Trust Co2,347$2.14M0.31%+15313F-HRTimeline
ANB BANK2,335$2.13M0.76%013F-HRTimeline
Iowa State Bank2,235$2.03M0.34%+12413F-HRTimeline
SILVIA MCCOLL WEALTH MANAGEMENT, LLC2,146$1.95M1.17%-813F-HRTimeline
Graves Light Lenhart Wealth, Inc.2,134$1.94M0.18%-15113F-HRTimeline
RHODES INVESTMENT ADVISORS INC /ADV2,097$1.91M1.35%+53613F-HRTimeline
First Heartland Consultants, Inc.2,079$1.89M0.13%-2213F-HRTimeline
ABLES, IANNONE, MOORE & ASSOCIATES, INC.2,043$1.86M0.96%+413F-HRTimeline
PFW Advisors LLC1,993$1.81M0.54%-813F-HRTimeline
DECISION INVESTMENTS, INC1,957$1.78M1.64%-213F-HRTimeline
Family Legacy Financial Solutions, LLC1,926$1.75M1.01%+6713F-HRTimeline
Whalen Wealth Management Inc.1,897$1.73M0.74%+6813F-HRTimeline
Sound Income Strategies, LLC1,794$1.7M0.08%013F-HRTimeline
Acropolis Investment Management, LLC1,834$1.67M0.07%+813F-HRTimeline
Olistico Wealth, LLC1,822$1.66M0.69%+1013F-HRTimeline
Great Waters Wealth Management1,811$1.65M0.15%-113F-HRTimeline
Boltwood Capital Management1,748$1.59M0.36%-1313F-HRTimeline
Shira Ridge Wealth Management1,699$1.55M0.54%-813F-HRTimeline
CANANDAIGUA NATIONAL BANK & TRUST COin group CANANDAIGUA NATIONAL BANK & T…1,653$1.5M0.13%-5013F-HRTimelineGroup
Vann Equity Management LLC1,648$1.5M0.89%-31413F-HRTimeline
Bullock Wealth Management Group1,552$1.42M0.59%+1113F-HRTimeline
ATWOOD & PALMER INC1,549$1.41M0.07%+16913F-HRTimeline
General Partner, Inc.1,542$1.4M0.75%-5013F-HRTimeline
Davis Capital Management1,520$1.38M0.83%-1513F-HRTimeline
Weaver Consulting Group1,498$1.36M0.27%+3613F-HRTimeline
Baring Financial LLC1,445$1.32M0.71%-813F-HRTimeline
Gerald Baker Financial Group LLC1,361$1.24M0.35%+213F-HRTimeline
Versant Capital Management, Inc1,297$1.18M0.1%-27413F-HRTimeline
STABLEFORD CAPITAL II LLC1,286$1.17M0.41%+3913F-HRTimeline
SACKS & ASSOCIATES, LLC1,250$1.14M0.79%013F-HRTimeline
RIVERSEDGE ADVISORS, LLC1,236$1.13M0.14%-23813F-HRTimeline
ECLECTIC ASSOCIATES INC /ADV1,236$1.13M0.13%+17913F-HRTimeline
TITLEIST ASSET MANAGEMENT, LLC1,211$1.1M0.07%+7713F-HRTimeline
Heartwood Wealth Advisors LLC1,199$1.09M0.09%+4813F-HRTimeline
Roxbury Financial LLC1,160$1.06M0.81%-413F-HRTimeline
Plan A Wealth LLC1,150$1.05M0.37%+1213F-HRTimeline
Adelphi Trust Co1,142$1.04M0.68%+2013F-HRTimeline
Paladin Partners, LLC1,126$1.03M0.63%-2513F-HRTimeline
Koenig Investment Advisory, LLC1,113$1.01M0.74%+413F-HRTimeline
Wisconsin Wealth Advisors, LLC1,111$1.01M0.85%-3613F-HRTimeline
Biltmore Wealth Management, LLC1,087$989K0.31%-2613F-HRTimeline
ARMSTRONG HENRY H ASSOCIATES INC1,071$975K0.09%013F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC1,059$964K0.06%013F-HRTimeline
VALLEY WEALTH MANAGERS, INC.in group VALLEY WEALTH MANAGERS, INC.1,048$954K0.05%+4213F-HRTimelineGroup
Dominguez Wealth Management Solutions, …1,043$950K0.53%+113F-HRTimeline
MAGNOLIA CAPITAL MANAGEMENT LTD1,012$921K0.65%013F-HRTimeline
INSPIRION WEALTH ADVISORS, LLC1,004$914K0.1%-113F-HRTimeline
TILIA FIDUCIARY PARTNERS, INC.1,001$911K0.42%-4913F-HR/ATimeline
Pacifica Partners Inc.982$898K0.27%+2613F-HRTimeline
RVW Wealth, LLC979$891K0.06%-2313F-HRTimeline
Breakwater Capital Group978$890K0.11%-2813F-HRTimeline
JUNCTURE WEALTH STRATEGIES, LLC972$885K0.23%+2013F-HRTimeline
Trinity Financial Advisors LLC957$871K0.22%-813F-HRTimeline
Bangor Savings Bank957$871K0.07%-4913F-HRTimeline
Veery Capital, LLC944$859K0.23%013F-HRTimeline
Balefire, LLC931$848K0.13%-713F-HRTimeline
M.E. ALLISON & CO., INC.905$824K0.46%-3113F-HRTimeline
Echo45 Advisors LLC903$822K0.37%+28813F-HRTimeline
Box Hill Private Wealth LLC901$820K0.6%-2213F-HRTimeline
CHICKASAW CAPITAL MANAGEMENT LLC872$794K0.03%-8013F-HRTimeline
Monument Capital Management866$788K0.16%-1013F-HRTimeline
DIVERSIFIED MANAGEMENT INC852$776K0.14%-12313F-HRTimeline
Exchange Bank825$751K0.46%-113F-HRTimeline
Kaizen Financial Strategies815$742K0.29%-7013F-HRTimeline
Cadent Capital Advisors, LLC809$737K0.16%013F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC784$713K0.2%-4513F-HRTimeline
VISTA INVESTMENT PARTNERS LLC781$711K0.19%+1213F-HRTimeline
Investment Partners Asset Management, I…775$706K0.38%-213F-HRTimeline
Bill Few Associates, Inc.769$700K0.15%-6913F-HRTimeline
KWMG, LLC763$695K0.05%-3413F-HRTimeline
Stonebridge Financial Group, LLC745$678K0.05%-6613F-HRTimeline
Tactive Advisors, LLC741$674K0.16%-12413F-HRTimeline
Rosenberg Matthew Hamilton729$664K0.12%013F-HRTimeline
COLLECTIVE FAMILY OFFICE LLC717$653K0.13%-1113F-HRTimeline
Successful Portfolios LLC691$638K0.29%013F-HRTimeline
Elm3 Financial Group, LLC679$618K0.41%-813F-HRTimeline
Hiley Hunt Wealth Management677$616K0.24%+313F-HRTimeline
Prota Financial, LLC666$609K0.39%+813F-HRTimeline
BOS Asset Management, LLC667$607K0.14%-6313F-HRTimeline
Dickmeyer Boyce Financial Management, I…666$607K0.31%013F-HRTimeline
Peterson Wealth Advisors, LLC666$607K0.07%-3613F-HRTimeline
Hamilton Capital, LLC657$598K0.03%-5513F-HRTimeline
New Covenant Trust Company, N.A.635$578K0.4%+14013F-HRTimeline
Veracity Capital LLC622$566K0.15%+613F-HRTimeline
ALKEME WEALTH, LLC588$535K0.2%+113F-HRTimeline
CHAPIN DAVIS, INC.587$534K0.1%+213F-HRTimeline
Decker Wealth Management LLC572$520K0.11%+24113F-HRTimeline
Allen Mooney & Barnes Investment Adviso…571$520K0.08%013F-HRTimeline
KFA Private Wealth Group, LLC549$500K0.12%+213F-HRTimeline
Aletheian Wealth Advisors LLC542$493K0.2%+2113F-HRTimeline
Dale Q Rice Investment Management Ltd537$489K0.27%013F-HRTimeline
FIRST COMMUNITY TRUST NA534$486K0.16%013F-HRTimeline
PRIVATE CLIENT SERVICES, LLC534$486K0.13%-18813F-HRTimeline
Cambridge Financial Group, LLC507$474K0.15%013F-HRTimeline
Global Wealth Strategies & Associates508$462K0.08%+4513F-HRTimeline
Shulman DeMeo Asset Management LLC490$452K0.09%-213F-HRTimeline
GoalVest Advisory LLC486$442K0.08%+1413F-HRTimeline
AVITY INVESTMENT MANAGEMENT INC.474$432K0.03%013F-HRTimeline
Williams & Novak Wealth Management, LLC440$401K0.24%-513F-HRTimeline
Green Ridge Wealth Planning LLC440$401K0.16%-6213F-HRTimeline
Hickory Point Bank & Trust438$399K0.24%013F-HRTimeline
First Citizens Financial Corp401$365K0.15%013F-HRTimeline
Ledgewood Wealth Advisors, LLC400$364K0.2%013F-HRTimeline
Meadowbrook Wealth Management, LLC397$361K0.38%+11213F-HRTimeline
Martin Capital Partners, LLC393$358K0.13%013F-HRTimeline
Kure Advisory, LLC386$351K0.16%-2713F-HRTimeline
Vilga Financial Planning LLC373$340K0.2%-913F-HRTimeline
BAKER TILLY WEALTH MANAGEMENT, LLC368$335K0.07%-11213F-HRTimeline
OxenFree Capital LLC352$330K0.14%+313F-HRTimeline
RFG - Bristol Wealth Advisors, LLC353$321K0.08%-313F-HRTimeline
AVAII WEALTH MANAGEMENT, LLC327$301K0.09%new13F-HRTimeline
STEWARDSHIP CONCEPTS FINANCIAL SERVICES…328$299K0.2%-3813F-HRTimeline
WALLER FINANCIAL PLANNING GROUP, INC328$298K0.06%-213F-HRTimeline
Sunburst Financial Group, LLC320$291K0.05%+213F-HRTimeline
Financial Enhancement Group LLC309$291K0.03%-213F-HRTimeline
HF Advisory Group, LLC317$289K0.09%-2113F-HRTimeline
BURR FINANCIAL SERVICES, LLC316$288K0.18%013F-HRTimeline
FIRST FINANCIAL BANK - TRUST DIVISION314$286K0.02%-4813F-HRTimeline
MRA Advisory Group313$285K0.11%+1313F-HRTimeline
JOURNEY RETIREMENT PLANNING & INVESTMEN…310$283K0.2%+7813F-HRTimeline
Montz Harcus Wealth Management LLC307$280K0.1%+113F-HRTimeline
Insight Wealth Strategies, LLC307$279K0.03%-7613F-HRTimeline
Dorato Capital Management295$278K0.19%013F-HRTimeline
Pathway Financial Advisors LLC303$276K0.03%+213F-HRTimeline
PROFESSIONAL ADVISORY SERVICES INC300$273K0.03%-913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Dupree Financial Group, LLC280$255K0.09%+4713F-HRTimeline