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Disclosery

COST COSTCO WHOLESALE CORPORATION

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COM (common), issuer CIK 909832

4,200 managers (4,278 13F filers) reported a position in COST shares at 2026-03-31, 320,333,954 shares in all. 249 filers opened a position and 127 filers sold out during the quarter.

Managers
4,200
13F filers
4,278
New
249
Added
1,799
Reduced
1,638
Sold out
127
Shares held by filers
320,333,954

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

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Wilcox William Richardofficer (Executive Vice President)2026-10-13-1,100 S$958.205Form 4

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
Advisor OS, LLCin group Advisor OS, LLC3,326$3.31M0.24%+13013F-HRTimelineGroup
Lewis Asset Management, LLC3,320$3.31M1.35%+1413F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.3,316$3.3M0.12%+5413F-HRTimelineGroup
Westhampton Capital, LLC3,314$3.3M1.54%-1813F-HRTimeline
STRATEGY ASSET MANAGERS LLC3,311$3.3M0.54%-10613F-HRTimeline
Fjell Capital, LLC3,302$3.29M2.53%+24213F-HRTimeline
Elmwood Wealth Management, Inc.3,301$3.29M0.91%-5413F-HRTimeline
SMITHBRIDGE ASSET MANAGEMENT INC/DE3,293$3.28M0.49%+2,66713F-HRTimeline
Beaumont Financial Advisors, LLC3,286$3.27M0.22%+22613F-HRTimeline
Pointe Capital Management LLC3,285$3.27M1.62%013F-HRTimeline
Strategic Blueprint, LLC3,275$3.26M0.19%-84113F-HRTimeline
PEAK FINANCIAL ADVISORS LLC3,271$3.26M1.44%-213F-HRTimeline
Peloton Wealth Strategists3,264$3.25M1.32%-4513F-HRTimeline
Strategic Investment Solutions, Inc. /IL3,253$3.24M0.78%013F-HRTimeline
Manchester Capital Management LLC3,248$3.24M0.47%-42513F-HRTimeline
Parallax Volatility Advisers, L.P.3,212$3.23M0.14%+3,21013F-HRTimeline
Sculati Wealth Management, LLC3,239$3.23M1.19%-3913F-HRTimeline
Carl P. Sherr & Co., LLC3,230$3.22M1.51%-6513F-HRTimeline
Reflection Asset Management3,217$3.21M1.96%+83313F-HRTimeline
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …3,216$3.2M0.05%-33513F-HRTimelineGroup
Inscription Capital, LLC3,209$3.2M0.34%+31913F-HRTimeline
Cladis Investment Advisory, LLC3,208$3.2M1.76%-6513F-HRTimeline
Agate Pass Investment Management, LLC3,208$3.2M1.25%+313F-HRTimeline
Shelter Rock Management, LLC3,197$3.19M3.38%+2913F-HRTimeline
Glen Eagle Advisors, LLC3,194$3.18M0.45%-22313F-HRTimeline
Parkside Financial Bank & Trust3,174$3.16M0.24%+1613F-HRTimeline
Lakeshore Capital Group, Inc.3,174$3.16M2.58%+2713F-HRTimeline
Armstrong, Fleming & Moore, Inc3,128$3.12M1.32%+6513F-HRTimeline
FIGURE 8 INVESTMENT STRATEGIES LLC3,126$3.11M3.04%-29513F-HRTimeline
Keebeck Wealth Management3,124$3.11M0.35%+34413F-HRTimeline
Alta Wealth Advisors LLC3,124$3.11M1.01%-2313F-HRTimeline
GRAYBILL WEALTH MANAGEMENT, LTD.3,123$3.11M0.95%-7113F-HRTimeline
Wellington Shields Capital Management, …group of 2 filers holding3,120$3.11M-25Timeline
Analyst IMS Investment Management Servi…in group Analyst IMS Investment Manage…3,113$3.1M0.09%-2,06213F-HRTimelineGroup
DB&C Advisors, LLC3,107$3.1M4.02%+313F-HRTimeline
Tradition Wealth Management, LLC3,105$3.09M0.22%+3013F-HRTimeline
CHATHAM CAPITAL GROUP, INC.3,104$3.09M0.45%+4213F-HRTimeline
RNC CAPITAL MANAGEMENT LLC3,102$3.09M0.14%-813F-HRTimeline
CNB Bank3,099$3.09M1.3%+3713F-HRTimeline
Beutel, Goodman & Co Ltd.3,099$3.09M0.02%+513F-HRTimeline
Brendel Financial Advisors LLC3,098$3.09M1.53%new13F-HRTimeline
GTS SECURITIES LLC3,082$3.07M0.11%-1,19413F-HRTimeline
Chemistry Wealth Management LLC3,079$3.07M0.54%-513F-HRTimeline
Avalon Trust Co3,077$3.07M0.21%+37113F-HRTimeline
Fortis Group Advisors, LLC3,022$3.07M0.51%-61313F-HRTimeline
Sava Infond d.o.o.3,075$3.06M0.43%+12013F-HRTimeline
ATTICUS WEALTH MANAGEMENT, LLC3,073$3.06M0.83%-50613F-HRTimeline
Cornerstone Advisory, LLC3,071$3.06M0.29%+10713F-HRTimeline
Sandro Wealth Management LLC3,070$3.06M2.45%+43813F-HRTimeline
WESTBOURNE INVESTMENTS, INC.3,067$3.06M1.45%+2513F-HRTimeline
ASHTON THOMAS SECURITIES, LLC3,064$3.05M0.38%+97613F-HRTimeline
Commonwealth Financial Services, LLC3,054$3.04M0.48%+6013F-HRTimeline
Apriem Advisors3,052$3.04M0.29%+17413F-HRTimeline
VERUS CAPITAL PARTNERS, LLC3,034$3.02M0.21%-4013F-HRTimeline
Valley Brook Capital Group, Inc.3,030$3.02M2.02%+21513F-HRTimeline
Quadrant Private Wealth Management, LLC3,026$3.02M0.47%+9513F-HRTimeline
Ballast, Inc.3,026$3.02M0.7%+2113F-HRTimeline
Mainsail Financial Group, LLC3,025$3.01M1.26%-6213F-HRTimeline
Xcel Wealth Management, LLC3,019$3.01M0.84%+46613F-HRTimeline
Circle Wealth Management, LLC3,015$3M0.04%+81413F-HRTimeline
CALDWELL SUTTER CAPITAL, INC.3,013$3M1.22%-3513F-HRTimeline
Stokes Family Office, LLC3,013$3M0.31%-40213F-HRTimeline
Nautilus Advisors LLC3,005$2.99M2.05%+16513F-HRTimeline
Visionary Wealth Advisors3,001$2.99M0.13%+913F-HRTimeline
Supplemental Annuity Collective Trust o…3,001$2.99M0.84%+20113F-HRTimeline
FWL INVESTMENT MANAGEMENT, LLC2,992$2.98M0.65%-2913F-HRTimeline
MITCHELL & PAHL PRIVATE WEALTH, LLC2,991$2.98M1.21%+13013F-HRTimeline
CPWA, LLC2,980$2.98M3.56%13F-HRTimeline
Olde Wealth Management, LLC2,987$2.98M0.94%-413F-HRTimeline
HM PAYSON & CO2,983$2.97M0.04%+6513F-HRTimeline
JM2 Capital Inc.2,979$2.97M2.46%+513F-HRTimeline
Strategic Financial Services, Inc.2,978$2.97M0.14%-513F-HRTimeline
Quent Capital, LLC2,976$2.97M0.21%+6613F-HRTimeline
Alpha Family Trustin group Alpha Family Trust2,975$2.96M1.44%+21013F-HRTimelineGroup
Wealth Management Partners, LLC2,971$2.96M0.85%-12013F-HRTimeline
Cornell Pochily Investment Advisors, In…2,966$2.96M0.87%+7813F-HRTimeline
Portfolio Design Labs, LLC2,966$2.96M0.53%-25113F-HRTimeline
VISTA CAPITAL PARTNERS, INC.2,965$2.95M0.3%+18613F-HRTimeline
Hixon Zuercher, LLC2,965$2.95M0.92%-2213F-HRTimeline
MAIRS & POWER INC2,963$2.95M0.03%+3013F-HRTimeline
ST. NICHOLAS PRIVATE ASSET MANAGEMENT, …2,955$2.94M2.75%+14113F-HRTimeline
BlackDiamond Wealth Management, LLC2,955$2.94M1.42%+713F-HRTimeline
CUTLER INVESTMENT COUNSEL LLC2,953$2.94M0.3%+2213F-HRTimeline
United Asset Strategies, Inc.2,953$2.94M0.23%+13513F-HRTimeline
BURNEY CO/2,950$2.94M0.09%-1,23613F-HRTimeline
First County Bank /CT/2,945$2.93M1.57%-1413F-HRTimeline
One Degree Advisors Inc2,941$2.93M0.77%-20213F-HRTimeline
Davidson Capital Management Inc.2,937$2.93M0.53%+2,93013F-HRTimeline
MANCHESTER FINANCIAL INC2,930$2.92M0.56%-1,41313F-HRTimeline
Torrey Growth & Income Advisors2,946$2.92M1.22%+20013F-HRTimeline
WOODARD & CO ASSET MANAGEMENT GROUP INC…2,927$2.92M0.47%-17413F-HRTimeline
Leonard Rickey Investment Advisors P.L.…2,920$2.91M0.5%-9613F-HRTimeline
Seneschal Advisors, LLC2,919$2.91M2.16%+213F-HRTimeline
WealthShield Partners, LLC2,917$2.91M0.32%+2913F-HRTimeline
BBR PARTNERS, LLC2,910$2.9M0.16%+213F-HRTimeline
KINTRA WEALTH, LLC2,908$2.9M0.2%+1,73413F-HRTimeline
GUIDANCE CAPITAL, INC2,847$2.89M0.65%+21913F-HRTimeline
Farmers & Merchants Trust Co of Chamber…2,898$2.89M0.79%-10013F-HR/ATimeline
LITTLEJOHN FINANCIAL SERVICES, INC.2,894$2.88M2.17%-2213F-HRTimeline
FOCUSED ALPHA, LLC2,889$2.88M0.89%-6613F-HRTimeline
Frec Markets, Inc.in group Frec Markets, Inc.2,881$2.87M0.49%+1,48413F-HRTimelineGroup
Hudson Canyon Capital Management2,879$2.87M1.76%-1513F-HRTimeline
COMMONS CAPITAL, LLC2,877$2.87M2.4%+7913F-HRTimeline
Summit Place Financial Advisors, LLC2,873$2.86M1.37%-16513F-HRTimeline
INDEPENDENT INVESTORS INC2,865$2.85M0.57%-2513F-HRTimeline
CGN Advisors LLC2,862$2.85M0.23%-28013F-HRTimeline
Patrick Mauro Investment Advisor, INC.2,857$2.85M1.43%-4213F-HRTimeline
INTEGRAL INVESTMENT ADVISORS, INC.2,854$2.84M0.71%-3013F-HRTimeline
D.B. Root & Company, LLC2,852$2.84M0.68%-1713F-HRTimeline
Bank of Marin2,850$2.84M2.07%013F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding2,846$2.84M+2,532Timeline
TOUNJIAN ADVISORY PARTNERS, LLC2,842$2.83M1.02%-22413F-HRTimeline
Advisory Alpha, LLC2,837$2.83M0.08%-36613F-HRTimeline
Accredited Investors Inc.2,838$2.83M0.15%+20613F-HRTimeline
BIP Wealth, LLC2,829$2.82M0.11%-50513F-HRTimeline
Leo Wealth, LLC2,829$2.82M0.2%+9413F-HRTimeline
Third View Private Wealth, LLC2,826$2.82M0.39%+1513F-HRTimeline
CCG WEALTH MANAGEMENT, LLC2,825$2.82M0.76%+1,64813F-HRTimeline
Bluespring Wealth Management, LLC2,824$2.81M0.24%-1813F-HRTimeline
Grandview Asset Management LLC2,818$2.81M0.82%+213F-HRTimeline
Aigen Investment Management, LP2,815$2.8M0.72%+9213F-HRTimeline
LEGACY CAPITAL WEALTH MANAGEMENT, LLC2,812$2.8M1.64%+36413F-HRTimeline
ARS Wealth Advisors Group, LLC2,812$2.8M0.24%-4413F-HRTimeline
MARS JEWETT FINANCIAL GROUP, INC.2,810$2.8M0.89%+41713F-HRTimeline
Icon Wealth Advisors, LLC2,796$2.79M0.18%-2613F-HRTimeline
CASTLEARK MANAGEMENT LLC2,800$2.79M0.09%013F-HRTimeline
Aft, Forsyth & Sober, LLC2,800$2.79M0.85%-2513F-HRTimeline
NAPLES GLOBAL ADVISORS, LLC2,796$2.79M0.2%+13913F-HRTimeline
Platt Wealth Management LLC2,796$2.79M2.72%+2,20513F-HRTimeline
Capital Investment Advisory Services, L…2,792$2.78M0.2%-4213F-HRTimeline
Vivid Wealth Management, LLC2,788$2.78M1.12%-8813F-HRTimeline
Financial Synergies Wealth Advisors, In…2,783$2.77M0.26%new13F-HRTimeline
Strategies Wealth Advisors, LLC2,781$2.77M0.28%-11513F-HRTimeline
PCM Encore, LLC2,778$2.77M0.57%+32613F-HRTimeline
RATIONAL ADVISORS, INC.2,778$2.77M0.28%-71013F-HRTimeline
Waterloo Capital, L.P.2,773$2.76M0.19%+14213F-HRTimeline
Brookwood Investment Group LLC2,771$2.76M0.35%-20113F-HRTimeline
Portside Wealth Group, LLC2,769$2.76M0.37%+69113F-HRTimeline
Greenline Partners, LLC2,763$2.75M0.3%-19413F-HRTimeline
Global Trust Asset Management, LLC2,755$2.75M1.05%-10213F-HRTimeline
Trace Wealth Advisors, LLC2,748$2.74M2.05%-3913F-HRTimeline
AlTi Global, Inc.in group AlTi Global, Inc.2,743$2.73M0.06%+11813F-HRTimelineGroup
BigSur Wealth Management LLC2,740$2.73M0.77%-35213F-HRTimeline
Cinctive Capital Management LP2,734$2.72M0.18%-5,59513F-HRTimeline
V-Square Quantitative Management LLC2,732$2.72M0.29%+35013F-HRTimeline
Optas, LLC2,732$2.72M0.41%+4113F-HRTimeline
NovaPoint Capital, LLC2,729$2.72M0.68%+7813F-HRTimeline
Legacy Bridge, LLC2,725$2.72M1.04%+5013F-HRTimeline
71 West Capital Partners2,719$2.71M0.12%+40013F-HRTimeline
Interval Partners, LP2,718$2.71M0.09%new13F-HRTimeline
OLD SECOND NATIONAL BANK OF AURORA2,717$2.71M0.56%-113F-HRTimeline
360 Financial, Inc.2,712$2.7M0.81%+113F-HRTimeline
NORTHSTAR ASSET MANAGEMENT Co2,710$2.7M0.61%+1513F-HRTimeline
Viewpoint Capital Management LLC2,710$2.7M1.26%+2513F-HRTimeline
Financial Life Planners2,705$2.69M2.07%-5613F-HRTimeline
TRIGLAV INVESTMENTS, D.O.O.2,700$2.69M0.19%+80013F-HRTimeline
TD PRIVATE CLIENT WEALTH LLC2,696$2.69M0.06%+25113F-HRTimeline
Edgestream Partners, L.P.2,695$2.69M0.09%+1,45913F-HRTimeline
Hilltop Partners LLC2,693$2.68M0.69%-12613F-HRTimeline
MOSELEY INVESTMENT MANAGEMENT INC2,690$2.68M0.85%-1413F-HRTimeline
X-Square Capital, LLC2,690$2.68M0.9%+7613F-HRTimeline
CIDEL ASSET MANAGEMENT INC2,686$2.68M0.15%+48913F-HRTimeline
Northwest Quadrant Wealth Management, L…2,677$2.67M0.55%-4113F-HRTimeline
FULTON BREAKEFIELD BROENNIMAN LLC2,674$2.66M0.17%-19613F-HRTimeline
United Advisor Group, LLC2,673$2.66M0.33%-113F-HRTimeline
LEAVELL INVESTMENT MANAGEMENT, INC.2,671$2.66M0.11%+5713F-HRTimeline
Ethos Financial Group, LLC2,756$2.66M0.19%-17613F-HRTimeline
Redhawk Wealth Advisors, Inc.2,666$2.66M0.29%+11613F-HRTimeline
SC&H Financial Advisors, Inc.2,664$2.65M0.4%013F-HRTimeline
LEE DANNER & BASS INC2,663$2.65M0.17%-8713F-HRTimeline
MONECO ADVISORS, LLC2,660$2.65M0.21%+5013F-HRTimeline
AlphaStar Capital Management, LLC2,657$2.65M0.2%-50713F-HRTimeline
NOVARE CAPITAL MANAGEMENT LLC2,651$2.64M0.21%-3513F-HRTimeline
Marion Wealth Management2,651$2.64M0.59%+9513F-HRTimeline
JFS WEALTH ADVISORS, LLC2,639$2.63M0.15%-3313F-HRTimeline
TOBAM2,637$2.63M0.68%+24813F-HRTimeline
CIM INVESTMENT MANAGEMENT INC2,635$2.63M0.7%-1213F-HRTimeline
TOWER TRUST & INVESTMENT Co2,630$2.62M1.72%-1513F-HRTimeline
Advyzon Investment Management, LLC2,630$2.62M0.23%+1,83113F-HRTimeline
PARAGON FINANCIAL PARTNERS, INC.2,688$2.62M1.49%013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC2,628$2.62M0.04%-37,57913F-HRTimelineGroup
WALTER & KEENAN WEALTH MANAGEMENT LLC /…2,626$2.62M0.74%+5313F-HRTimeline
Truvestments Capital LLC2,621$2.61M0.47%-7413F-HRTimeline
INVESTMENT ADVISORY SERVICES INC /TX /A…2,619$2.61M0.83%+513F-HRTimeline
Altshuler Shaham Ltd2,618$2.61M0.05%new13F-HRTimeline
Prestige Wealth Management Group LLC2,613$2.6M0.51%-1413F-HRTimeline
Westview Management dba Westview Invest…2,613$2.6M1.35%+10813F-HRTimeline
Massachusetts Wealth Management2,610$2.6M1.13%+3513F-HRTimeline
Facet Wealth, Inc.2,603$2.59M0.04%+47813F-HRTimeline
Financial Insights, Inc.2,603$2.59M0.84%+4613F-HRTimeline
CENTRAL VALLEY ADVISORS, LLC2,602$2.59M0.71%+34813F-HRTimeline
Forza Wealth Management, LLC2,598$2.59M0.9%-1713F-HRTimeline
TIEMANN INVESTMENT ADVISORS, LLC2,594$2.58M1.01%+713F-HRTimeline
Valmark Advisers, Inc.2,593$2.58M0.03%+10113F-HRTimeline
Collaborative Fund Advisors, LLC2,586$2.58M1.59%13F-HRTimeline
Bernicke Wealth Management, Ltd.2,583$2.57M0.33%+5013F-HRTimeline
Samara Investment Management, LLC2,583$2.57M2.67%13F-HRTimeline
Fox Hill Wealth Management2,581$2.57M1.24%-4913F-HRTimeline
PATRICK M SWEENEY & ASSOCIATES, INC2,578$2.57M1.65%-213F-HRTimeline
AA Financial Advisors, LLC2,576$2.57M0.36%+1,39513F-HRTimeline

Events

  • Wilcox William Richard sold 1,100 COST shares on 2026-10-13, Form 4 filed 2026-10-14. 0000909832-26-000098

    Accepted , ingested