COST COSTCO WHOLESALE CORPORATION

COM (common), issuer CIK 909832

3,894 managers (3,952 13F filers) reported a position in COST shares at 2025-03-31, 304,583,853 shares in all. 151 filers opened a position and 121 filers sold out during the quarter.

Managers: 3,894
13F filers: 3,952
New: 151
Added: 1,605
Reduced: 1,682
Sold out: 121
Shares held by filers: 304,583,853

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.
Owner	Date	Shares	Price	Filing
Wilcox William Richardofficer (Executive Vice President)	2026-10-13	-1,100 S	$958.205	Form 4

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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.

Holder	Shares	Value	% of portfolio	Change	Source
Kidder Stephen W	544	$515K	0.16%	+275	13F-HR Timeline
SOUTH PLAINS FINANCIAL, INC.	544	$514K	0.4%	+23	13F-HR Timeline
LANDAAS & CO /WI /ADV	542	$513K	0.14%	0	13F-HR Timeline
Wick Capital Partners, LLC	542	$512K	0.15%	-172	13F-HR Timeline
Burford Brothers, Inc.	542	$512K	0.25%	+7	13F-HR Timeline
MAGNOLIA CAPITAL ADVISORS LLC	541	$512K	0.14%	-30	13F-HR Timeline
Wealth Watch Advisors, INC	538	$511K	0.42%	+3	13F-HR Timeline
RAHLFS CAPITAL, LLC	540	$511K	0.51%	0	13F-HR Timeline
Accretive Wealth Partners, LLC	505	$510K	0.18%	+142	13F-HR Timeline
Symphony Financial Services, Inc.	539	$510K	0.33%	-14	13F-HR Timeline
Willis Johnson & Associates, Inc.	539	$510K	0.04%	-285	13F-HR Timeline
Clarity Capital Partners LLC	538	$509K	0.21%	+10	13F-HR Timeline
Maia Wealth LLC	519	$509K	0.12%	+36	13F-HR Timeline
Sunpointe, LLC	538	$509K	0.27%	-285	13F-HR Timeline
LOCKERMAN FINANCIAL GROUP, INC.	536	$507K	0.77%	+36	13F-HR Timeline
SMART Wealth LLC	535	$506K	0.18%	-198	13F-HR Timeline
Elite Life Management LLC	534	$505K	1.58%	+9	13F-HR Timeline
Permanent Capital Management, LP	534	$505K	0.14%	+212	13F-HR Timeline
ASAHI LIFE ASSET MANAGEMENT CO., LTD.	533	$504K	0.33%	-335	13F-HR Timeline
G&S Capital LLC	533	$504K	0.21%	+311	13F-HR Timeline
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …	532	$503K	0.02%	-95	13F-HR/A Timeline Group
Unconventional Investor, LLC	532	$503K	0.3%	0	13F-HR Timeline
Mullaney, Keating & Wright, Inc.	530	$501K	0.34%	0	13F-HR Timeline
Alpha Zero LLC	530	$501K	0.38%	+1	13F-HR Timeline
Black Diamond Financial, LLC	529	$501K	0.08%	+7	13F-HR Timeline
Strata Wealth Advisors, LLC	528	$499K	0.16%	-72	13F-HR Timeline
Walker Asset Management, LLC	528	$499K	0.3%	+1	13F-HR Timeline
QTR Family Wealth, LLC	527	$499K	0.38%		13F-HR Timeline
Pine Harbor Wealth Management, LLC	526	$498K	0.2%	-57	13F-HR Timeline
Clifford Group, LLC	525	$497K	0.46%	0	13F-HR Timeline
Rodgers & Associates, LTD	525	$497K	0.06%	+3	13F-HR Timeline
PCG Wealth Advisors, LLC	525	$497K	0.17%	+75	13F-HR Timeline
Miramar Capital, LLC	525	$497K	0.12%	0	13F-HR Timeline
Valtinson Bruner Financial Planning LLC	525	$496K	0.17%	-109	13F-HR Timeline
Turning Point Benefit Group, Inc.	546	$496K	0.46%	+202	13F-HR Timeline
MAS Advisors LLC	524	$496K	0.76%	-37	13F-HR Timeline
Cambridge Financial Group, LLC	525	$495K	0.21%	+76	13F-HR Timeline
Nicollet Investment Management, Inc.	524	$495K	0.17%	+98	13F-HR Timeline
Capital Wealth Planning, LLC	523	$495K	<0.01%	+262	13F-HR Timeline
INCEPTIONR LLC	523	$495K	0.15%	new	13F-HR Timeline
DARK FOREST CAPITAL MANAGEMENT LP	523	$495K	0.02%	+240	13F-HR Timeline
Cache Advisors, LLC	523	$495K	0.19%	+100	13F-HR Timeline
Opal Wealth Advisors, LLC	522	$494K	0.15%	-56	13F-HR Timeline
M1 Capital Management LLC	522	$494K	0.31%	-3	13F-HR Timeline
Farrell Financial LLC	522	$493K	0.36%	+11	13F-HR Timeline
Gunderson Capital Management LLC	522	$493K	0.32%	+3	13F-HR Timeline
Asset Allocation & Management Company, …	520	$492K	0.25%	0	13F-HR Timeline
SLT Holdings LLC	520	$492K	0.46%	+17	13F-HR Timeline
MORRIS FINANCIAL CONCEPTS, INC.	520	$492K	0.21%	0	13F-HR Timeline
Clay Northam Wealth Management, LLC	519	$491K	0.34%	+53	13F-HR Timeline
Tumwater Wealth Management, LLC	518	$490K	0.26%	0	13F-HR Timeline
N.E.W. Advisory Services LLC	518	$490K	0.04%	+132	13F-HR Timeline
WEALTHCARE CAPITAL MANAGEMENT LLC	516	$488K	0.05%	-2	13F-HR Timeline
Summit X, LLC	515	$487K	0.1%	-104	13F-HR Timeline
Yarbrough Capital, LLC	515	$487K	0.02%	0	13F-HR Timeline
Granite Harbor Advisors, Inc.	515	$487K	0.26%	+156	13F-HR Timeline
DAGCO, INC.	511	$483K	0.16%	+40	13F-HR Timeline
GREENWOOD CAPITAL ASSOCIATES LLC	511	$483K	0.07%	-15	13F-HR Timeline
Stewardship Advisors, LLC	511	$483K	0.13%	-1	13F-HR Timeline
Shulman DeMeo Asset Management LLC	510	$483K	0.14%	+6	13F-HR Timeline
Acorn Wealth Advisors, LLC	510	$482K	0.2%	+5	13F-HR Timeline
Brucke Financial, Inc.	485	$482K	0.42%	+30	13F-HR Timeline
MARIPAU WEALTH MANAGEMENT LLC	509	$482K	0.28%	new	13F-HR Timeline
Archvest Wealth Advisors, Inc.	508	$480K	0.4%	+78	13F-HR Timeline
Detalus Advisors, LLC	507	$480K	0.15%	+10	13F-HR Timeline
CAP Partners, LLC	507	$479K	0.35%	-9	13F-HR Timeline
Aurora Private Wealth, Inc.	507	$479K	0.38%	-201	13F-HR/A Timeline
HHM Wealth Advisors, LLC	506	$479K	0.06%	+39	13F-HR Timeline
Auto-Owners Insurance Coin group Auto-Owners Insurance Co	4,147	$478K	0.01%	+3,717	13F-HR Timeline Group
CAMPBELL NEWMAN ASSET MANAGEMENT INC	505	$478K	0.04%	0	13F-HR Timeline
Curated Wealth Partners LLC	505	$478K	0.06%	+53	13F-HR Timeline
SummitTX Capital, L.P.	504	$477K	0.02%		13F-HR Timeline
Edge Financial Advisors LLC	504	$476K	0.3%	+46	13F-HR Timeline
Foguth Wealth Management, LLC.	503	$476K	0.12%	+30	13F-HR Timeline
Northwest Bancshares, Inc.	503	$476K	0.09%	0	13F-HR Timeline
WALLED LAKE PLANNING & WEALTH MANAGEMEN…	502	$475K	0.17%	-3	13F-HR Timeline
Truepoint, Inc.	501	$474K	0.01%	0	13F-HR Timeline
HighMark Wealth Management LLC	501	$474K	0.28%	+116	13F-HR Timeline
Darwin Wealth Management, LLC	516	$474K	0.16%	0	13F-HR Timeline
Greenhouse Wealth Management, LLC	500	$473K	0.35%	0	13F-HR Timeline
Geneva Partners, LLC	500	$473K	0.24%	+46	13F-HR Timeline
AVENIR CORP	500	$473K	0.05%	0	13F-HR Timeline
Poplar Forest Capital LLC	500	$473K	0.08%	0	13F-HR Timeline
VERITY Wealth Advisors	500	$473K	0.35%	0	13F-HR Timeline
Dynamic Wealth Strategies, LLC	500	$473K	0.39%	+1	13F-HR Timeline
EIGHT 31 FINANCIAL, LLC	500	$473K	0.3%	0	13F-HR Timeline
Vermillion Wealth Management, Inc.	499	$472K	0.14%	+2	13F-HR Timeline
WealthCollab, LLC	496	$469K	0.29%	0	13F-HR Timeline
AVITY INVESTMENT MANAGEMENT INC.	496	$469K	0.04%	-45	13F-HR Timeline
CORNERSTONE ENTERPRISES, LLC	496	$469K	0.29%	+10	13F-HR Timeline
Tower Wealth Partners, Inc.	495	$468K	0.25%	+72	13F-HR Timeline
Wealth Advisors Northwest LLC	494	$468K	0.3%	-18	13F-HR Timeline
Schaeffer Financial LLC	493	$466K	0.51%	0	13F-HR Timeline
REAP Financial Group, LLC	493	$466K	0.12%	+12	13F-HR Timeline
TITLEIST ASSET MANAGEMENT, LLC	493	$466K	0.05%	-117	13F-HR Timeline
Lorne Steinberg Wealth Management Inc.	491	$464K	0.14%	+140	13F-HR Timeline
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…	490	$463K	0.16%	+75	13F-HR Timeline
RS CRUM INC.	490	$463K	0.12%	-24	13F-HR Timeline
Cutter & CO Brokerage, Inc.	490	$463K	0.11%	-51	13F-HR Timeline
Centricity Wealth Management, LLC	489	$462K	0.42%	+31	13F-HR Timeline
Planned Solutions, Inc.	489	$462K	0.19%	-35	13F-HR Timeline
Spectrum Wealth Advisory Group, LLC	489	$462K	0.22%	+1	13F-HR Timeline
PLIMOTH TRUST CO LLC	488	$462K	0.12%	-143	13F-HR Timeline
ROVIN CAPITAL /UT/ /ADV	488	$461K	0.15%	+129	13F-HR Timeline
CGC Financial Services, LLC	487	$461K	0.18%	+100	13F-HR Timeline
Ariadne Wealth Management, LP	456	$460K	0.24%	+27	13F-HR Timeline
Five Pine Wealth Management	485	$459K	0.37%	-8	13F-HR Timeline
E&G Advisors, LLC	485	$459K	0.13%	+100	13F-HR Timeline
NORTHWEST WEALTH MANAGEMENT, LLC	483	$457K	0.09%	+1	13F-HR Timeline
Aspen Capital Management, LLC	482	$456K	0.15%		13F-HR Timeline
TWIN PEAKS WEALTH ADVISORS, LLC	466	$455K	0.21%	+4	13F-HR Timeline
Summa Corp.	481	$455K	0.26%	-50	13F-HR Timeline
High Note Wealth, LLC	479	$453K	0.11%	0	13F-HR Timeline
Team Financial Group, LLC	479	$453K	0.26%	+132	13F-HR Timeline
PRECEDENT WEALTH PARTNERS, LLC	478	$452K	0.13%	+44	13F-HR Timeline
Financial Management Professionals, Inc.	477	$451K	0.06%	-14	13F-HR Timeline
Townsend & Associates, Inc	470	$450K	0.05%	+7	13F-HR Timeline
Westshore Wealth, LLC	475	$449K	0.19%	+17	13F-HR Timeline
COERENTE CAPITAL MANAGEMENT	475	$449K	0.09%	-50	13F-HR Timeline
Christensen, King & Associates Investme…	481	$447K	0.21%	-64	13F-HR Timeline
Sagace Wealth Management LLC	473	$447K	0.34%	-6	13F-HR Timeline
GSG Advisors LLC	462	$446K	0.15%	+13	13F-HR Timeline
Sharkey, Howes & Javer	472	$446K	0.06%	+1	13F-HR Timeline
JACKSON THORNTON WEALTH MANAGEMENT, LLC	448	$446K	0.06%	+134	13F-HR Timeline
Port Capital LLC	471	$445K	0.02%	-56	13F-HR Timeline
BOURGEON CAPITAL MANAGEMENT LLC	470	$445K	0.1%	-5	13F-HR Timeline
ACORN CREEK CAPITAL LLC	469	$444K	0.22%	+3	13F-HR Timeline
Austin Private Wealth, LLC	468	$443K	0.04%	+18	13F-HR Timeline
Armor Investment Advisors, LLC	468	$443K	0.18%	-18	13F-HR Timeline
Johnson Bixby & Associates, LLC	466	$440K	0.07%	0	13F-HR Timeline
HORIZON BANCORP INC /IN/	463	$438K	0.25%	-153	13F-HR Timeline
Omnia Family Wealth, LLC	463	$438K	0.18%	+129	13F-HR Timeline
CHIRON CAPITAL MANAGEMENT, LLC	463	$438K	0.4%	new	13F-HR Timeline
MOTIVE WEALTH ADVISORS	463	$438K	0.23%	-3	13F-HR Timeline
Cornerstone Capital, Inc.	462	$437K	0.05%	+30	13F-HR Timeline
Alliance Wealth Advisors, LLC	461	$436K	0.26%	+10	13F-HR Timeline
OPTIMIZE FINANCIAL INC.	461	$436K	0.32%	-74	13F-HR/A Timeline
1900 WEALTH MANAGEMENT LLC	459	$434K	0.04%	-91	13F-HR Timeline
Balefire, LLC	459	$434K	0.15%	+140	13F-HR Timeline
Founders Capital Management	458	$433K	0.28%	-8	13F-HR Timeline
Syntegra Private Wealth Group, LLC	458	$433K	0.05%	+7	13F-HR Timeline
Cloud Capital Management, LLC	459	$433K	0.31%		13F-HR Timeline
Flaharty Asset Management, LLC	456	$431K	0.06%	-20	13F-HR Timeline
Meritas Wealth Management, LLC	456	$431K	0.25%	0	13F-HR Timeline
BIRCHBROOK, INC.	456	$431K	0.24%	+11	13F-HR Timeline
Hidden Cove Wealth Management, LLC	455	$431K	0.34%	+53	13F-HR Timeline
VICTORY FINANCIAL GROUP, LLC	453	$430K	0.08%	+38	13F-HR Timeline
FLAGSHIP WEALTH ADVISORS, LLC	455	$430K	0.18%	-52	13F-HR/A Timeline
Gordian Advisors LLC	454	$429K	0.34%	0	13F-HR Timeline
Drucker Wealth 3.0, LLC	453	$428K	0.09%	+103	13F-HR Timeline
SUMMITRY LLC	453	$428K	0.02%	+166	13F-HR Timeline
SHERBROOKE PARK ADVISERS LLC	452	$427K	0.2%	new	13F-HR Timeline
Narus Financial Partners, LLC	452	$427K	0.15%	+9	13F-HR Timeline
Perissos Private Wealth Management, LLC	451	$427K	0.39%	-2,305	13F-HR Timeline
Salomon & Ludwin, LLC	451	$427K	0.05%	+99	13F-HR Timeline
COHEN & STEERS, INC.in group COHEN & STEERS, INC.	450	$426K	<0.01%	-68	13F-HR Timeline Group
SCHOLTZ & COMPANY, LLC	450	$426K	0.21%	-118	13F-HR Timeline
TABR Capital Management, LLC	450	$425K	0.44%	-10	13F-HR Timeline
Indie Asset Partners, LLC	449	$425K	0.37%	-60	13F-HR Timeline
Saiph Capital, LLC	449	$425K	0.2%	0	13F-HR Timeline
PENNINGTON PARTNERS & CO., LLC	448	$424K	0.24%	-177	13F-HR Timeline
MEANS INVESTMENT CO., INC.	447	$423K	0.04%	-15	13F-HR Timeline
Next Level Private LLC	447	$423K	0.16%	+192	13F-HR Timeline
Seaside Wealth Management, Inc.	446	$422K	0.15%	+8	13F-HR Timeline
NAPATREE CAPITAL LLC	446	$422K	0.24%	+83	13F-HR Timeline
FLOW TRADERS U.S. LLC	445	$421K	0.02%	-284	13F-HR Timeline
S. R. Schill & Associates	445	$421K	0.34%	+179	13F-HR Timeline
COTTONWOOD CAPITAL ADVISORS, LLC	445	$421K	0.31%	-26	13F-HR Timeline
Nova Wealth Management, Inc.	444	$420K	0.36%	+36	13F-HR/A Timeline
Schrum Private Wealth Management LLC	443	$419K	0.37%	0	13F-HR Timeline
Security Financial Services, INC.	443	$419K	0.08%	+17	13F-HR Timeline
Financial Advisors Network, Inc.	443	$419K	0.07%	-44	13F-HR Timeline
Fonville Wealth Management LLC	442	$418K	0.12%	-50	13F-HR Timeline
Stordahl Capital Management, Inc.	442	$418K	0.1%	+7	13F-HR Timeline
Paladin Advisory Group, LLC	442	$418K	0.33%	0	13F-HR Timeline
Smith Salley Wealth Management	441	$417K	0.03%	-66	13F-HR Timeline
Next Level Wealth Planning, LLC	441	$417K	0.32%	-5	13F-HR Timeline
Ironsides Asset Advisors, LLC	441	$417K	0.12%	0	13F-HR Timeline
FOSTER & MOTLEY INC	441	$417K	0.03%	-28	13F-HR Timeline
MBE Wealth Management, LLC	440	$416K	0.2%	+146	13F-HR Timeline
Cooper Capital Advisors LLC	440	$416K	0.45%	-425	13F-HR Timeline
Jump Financial, LLCin group Jump Financial, LLC	439	$415K	0.01%	-4,429	13F-HR/A Timeline Group
Scissortail Wealth Management, LLC	439	$415K	0.11%	-90	13F-HR Timeline
Hickory Point Bank & Trust	439	$415K	0.37%	+23	13F-HR Timeline
Cardinal Point Capital Management ULC	438	$414K	0.04%	+100	13F-HR Timeline
Grange Capital, LLC	438	$414K	0.48%	-76	13F-HR Timeline
Bouchey Financial Group, Ltd.	436	$413K	0.04%	+2	13F-HR Timeline
WESPAC Advisors SoCal, LLC	435	$412K	0.11%	new	13F-HR Timeline
One Wealth Map LLC	430	$411K	0.27%	+2	13F-HR Timeline
Cascade Wealth Advisors, Inc	420	$410K	0.28%	0	13F-HR Timeline
Cynosure Group, LLC	433	$410K	0.06%	+22	13F-HR Timeline
HARMONY ASSET MANAGEMENT LLC	433	$410K	0.17%	0	13F-HR Timeline
CROWLEY WEALTH MANAGEMENT, INC.	432	$409K	0.39%	+3	13F-HR Timeline
Abel Hall, LLC	432	$408K	0.25%	-45	13F-HR Timeline
Worth Financial Advisory Group, LLC	430	$407K	0.26%	+148	13F-HR Timeline
Jacksonville Wealth Management, LLC	430	$407K	0.4%	0	13F-HR Timeline
Fulcrum Equity Management	429	$406K	0.44%	-43	13F-HR Timeline
626 Financial, LLC	429	$406K	0.21%	-59	13F-HR Timeline
Rooted Wealth Advisors, Inc.	441	$404K	0.17%	+11	13F-HR Timeline
MOULTON WEALTH MANAGEMENT, INC	427	$404K	0.31%	0	13F-HR Timeline

Events

Wilcox William Richard sold 1,100 COST shares on 2026-10-13, Form 4 filed 2026-10-14. 0000909832-26-000098
Accepted 2026-10-14 23:00:30 UTC, ingested 2026-10-14 23:01:45 UTC