COST COSTCO WHOLESALE CORPORATION

COM (common), issuer CIK 909832

4,189 managers (4,262 13F filers) reported a position in COST shares at 2026-06-30, 322,797,428 shares in all. 140 filers opened a position and 158 filers sold out during the quarter.

Managers: 4,189
13F filers: 4,262
New: 140
Added: 1,735
Reduced: 1,738
Sold out: 158
Shares held by filers: 322,797,428

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.

Holder	Shares	Value	% of portfolio	Change	Source
Waterfront Wealth Inc.	529	$485K	0.08%	+162	13F-HR Timeline
Clay Northam Wealth Management, LLC	517	$484K	0.24%	+10	13F-HR Timeline
SSI INVESTMENT MANAGEMENT LLC	517	$484K	0.03%	0	13F-HR Timeline
MOTIVE WEALTH ADVISORS	515	$482K	0.2%	+9	13F-HR Timeline
ATLas Financial Planning LLC	514	$481K	0.39%	-58	13F-HR Timeline
CAP Partners, LLC	514	$481K	0.24%	+15	13F-HR Timeline
Heritage Wealth Management, Inc. /CA/	514	$481K	0.24%	+245	13F-HR Timeline
Geneva Partners, LLC	513	$480K	0.13%	-5	13F-HR Timeline
Index Technologies Group LLC	512	$479K	0.38%	+10	13F-HR Timeline
Alaethes Wealth, LLC	511	$478K	0.14%	-50	13F-HR Timeline
Walker Asset Management, LLC	510	$477K	0.24%	-28	13F-HR Timeline
WILKINS INVESTMENT COUNSEL INC	510	$477K	0.06%	-100	13F-HR Timeline
Mullaney, Keating & Wright, Inc.	510	$477K	0.23%	-20	13F-HR Timeline
ARVEST INVESTMENTS, INC.	509	$476K	0.06%	-3	13F-HR Timeline
DEFINE FINANCIAL, LLC	507	$475K	0.22%	+96	13F-HR Timeline
VALLEY NATIONAL ADVISERS INC	507	$475K	0.05%	-23	13F-HR Timeline
Greenline Wealth Management LLC	507	$474K	0.39%	+23	13F-HR Timeline
Cambridge Financial Group, LLC	507	$474K	0.15%	-32	13F-HR Timeline
Oakmont Investment Advisors, Inc.	505	$473K	0.33%	-260	13F-HR Timeline
Financial Advisors Network, Inc.	505	$473K	0.06%	-57	13F-HR Timeline
Tumwater Wealth Management, LLC	505	$472K	0.17%	0	13F-HR Timeline
CAMPBELL NEWMAN ASSET MANAGEMENT INC	505	$472K	0.04%	0	13F-HR Timeline
Capital Wealth Alliance, LLC	505	$472K	0.22%	-7	13F-HR Timeline
DAGCO, INC.	505	$472K	0.09%	-30	13F-HR Timeline
WFA of San Diego, LLC	491	$472K	0.39%	-9	13F-HR Timeline
LifeGoal Investments, LLC	504	$471K	0.22%	+77	13F-HR Timeline
Westend Capital Management, LLC	503	$471K	0.11%	-69	13F-HR Timeline
FOX RUN MANAGEMENT, L.L.C.	503	$471K	0.08%	new	13F-HR Timeline
Windsor Capital Management, LLC	503	$471K	0.12%	0	13F-HR Timeline
PRECEDENT WEALTH PARTNERS, LLC	503	$471K	0.08%	+50	13F-HR Timeline
Green Ridge Wealth Planning LLC	502	$470K	0.2%	0	13F-HR Timeline
Equity Wealth Partners, LLC	502	$469K	0.17%	+11	13F-HR Timeline
BCS Wealth Management	501	$469K	0.08%	-9	13F-HR Timeline
Lorne Steinberg Wealth Management Inc.	501	$469K	0.1%	+22	13F-HR Timeline
CORNERSTONE ENTERPRISES, LLC	501	$469K	0.21%	+5	13F-HR Timeline
ACORN CREEK CAPITAL LLC	500	$468K	0.16%	-28	13F-HR Timeline
Elite Financial, Inc.	501	$468K	0.19%	0	13F-HR Timeline
YARGER WEALTH STRATEGIES, LLC	511	$468K	0.17%	+20	13F-HR Timeline
AVENIR CORP	500	$468K	0.06%	0	13F-HR Timeline
Prosperity Bancshares Inc	500	$468K	0.31%	+45	13F-HR Timeline
JMG Financial Group, Ltd.	500	$468K	0.01%	-28	13F-HR Timeline
VERITY Wealth Advisors	500	$468K	0.28%	0	13F-HR Timeline
MRP Capital Investments, LLC	500	$468K	0.34%	0	13F-HR Timeline
EIGHT 31 FINANCIAL, LLC	500	$468K	0.28%	-25	13F-HR Timeline
Wick Capital Partners, LLC	500	$467K	0.07%	+92	13F-HR Timeline
Bouchey Financial Group, Ltd.	499	$467K	0.03%	-48	13F-HR Timeline
MCDONALD PARTNERS LLC	499	$467K	0.11%	+136	13F-HR Timeline
Mayfair Advisory Group, LLC	499	$466K	0.14%	+76	13F-HR Timeline
FIRETHORN WEALTH PARTNERS, LLC	498	$466K	0.15%	+57	13F-HR Timeline
WealthCollab, LLC	496	$464K	0.17%	+59	13F-HR Timeline
GSG Advisors LLC	496	$464K	0.1%	-13	13F-HR Timeline
HARMONY ASSET MANAGEMENT LLC	495	$463K	0.12%	0	13F-HR Timeline
New Covenant Trust Company, N.A.	495	$463K	0.35%	+56	13F-HR Timeline
OKABENA INVESTMENT SERVICES INC	493	$461K	0.08%	0	13F-HR Timeline
ArrowMark Colorado Holdings LLC	493	$461K	0.02%	0	13F-HR Timeline
Schaeffer Financial LLC	493	$461K	0.36%	0	13F-HR Timeline
Five Pine Wealth Management	492	$461K	0.26%	0	13F-HR Timeline
Team Financial Group, LLC	492	$460K	0.2%	0	13F-HR Timeline
Braun-Bostich & Associates Inc.	492	$460K	0.26%	+24	13F-HR Timeline
Rare Wolf Capital LLC	492	$460K	0.3%	+179	13F-HR Timeline
Griffith & Werner, Inc.	492	$460K	0.22%	+122	13F-HR Timeline
Shulman DeMeo Asset Management LLC	492	$460K	0.09%	+4	13F-HR Timeline
VICUS CAPITAL	491	$459K	0.03%	+107	13F-HR Timeline
Convergence Investment Partners, LLC	491	$459K	0.04%	-79	13F-HR Timeline
Ring Mountain Capital, LLC	490	$459K	0.19%	+19	13F-HR Timeline
Buck Wealth Strategies, LLC	489	$458K	0.05%	+107	13F-HR Timeline
Christensen, King & Associates Investme…	489	$458K	0.18%	0	13F-HR Timeline
Ares Financial Consulting, LLC	489	$458K	0.33%	0	13F-HR Timeline
Syntegra Private Wealth Group, LLC	487	$456K	0.04%	+20	13F-HR Timeline
MMA ASSET MANAGEMENT LLC	486	$455K	0.14%	-2	13F-HR Timeline
FOUNDERS GROVE WEALTH PARTNERS, LLC	485	$454K	0.09%	+144	13F-HR Timeline
American Capital Advisory, LLC	484	$453K	0.17%	-411	13F-HR Timeline
Rather & Kittrell, Inc.	484	$453K	0.06%	+9	13F-HR Timeline
Great Diamond Partners, LLC	484	$453K	0.08%	+23	13F-HR Timeline
ASL Financial, LLC	484	$453K	0.32%	0	13F-HR Timeline
LIGHTHOUSE FINANCIAL SERVICES INC /ADV	490	$453K	0.1%	+1	13F-HR Timeline
Sachetta, LLC	483	$452K	0.22%	+34	13F-HR Timeline
STONEBRIDGE CAPITAL MANAGEMENT INC	483	$452K	0.22%	new	13F-HR Timeline
MORRIS FINANCIAL CONCEPTS, INC.	483	$452K	0.14%	0	13F-HR Timeline
NORTHWEST WEALTH MANAGEMENT, LLC	481	$450K	0.06%	-10	13F-HR Timeline
Johnson Bixby & Associates, LLC	481	$449K	0.05%	0	13F-HR Timeline
MLG Wealth Management DBA Pine Grove Fi…	480	$449K	0.05%	+44	13F-HR Timeline
BAKER TILLY WEALTH MANAGEMENT, LLC	480	$449K	0.1%	-37	13F-HR Timeline
SAXON INTERESTS, INC.	479	$448K	0.12%	-8	13F-HR Timeline
SOA Wealth Advisors, LLC.	6,631	$447K	0.08%	-11,138	13F-HR Timeline
Signet Private Wealth LLC	478	$447K	0.36%	-3	13F-HR Timeline
Wingate Wealth Advisors, Inc.	477	$447K	0.2%	+47	13F-HR Timeline
Warwick Investment Management, Inc.	477	$446K	0.05%	-5	13F-HR Timeline
VestGen Investment Management	475	$444K	0.24%	+36	13F-HR Timeline
FLAGSHIP WEALTH ADVISORS, LLC	475	$444K	0.1%	+120	13F-HR Timeline
AVITY INVESTMENT MANAGEMENT INC.	474	$443K	0.03%	-4	13F-HR Timeline
CAPE ANN SAVINGS BANK	474	$443K	0.21%	0	13F-HR Timeline
New World Advisors LLC	474	$443K	0.08%	-37	13F-HR Timeline
SKY-MOUNTAIN CAPITAL MANAGEMENT, INC.	473	$443K	0.32%	0	13F-HR Timeline
Maia Wealth LLC	473	$442K	0.07%	-7	13F-HR Timeline
Osbon Capital Management LLC	472	$442K	0.35%	-1	13F-HR Timeline
GoalVest Advisory LLC	472	$442K	0.08%	0	13F-HR Timeline
SPWM Advisors LLC	469	$441K	0.41%	+1	13F-HR Timeline
Hexagon Capital Partners LLC	472	$441K	0.06%	+66	13F-HR Timeline
Affiance Financial, LLC	471	$441K	0.06%	+10	13F-HR Timeline
Clifford Group, LLC	470	$440K	0.3%	-12	13F-HR Timeline
BOURGEON CAPITAL MANAGEMENT LLC	470	$440K	0.07%	0	13F-HR Timeline
Severin Investments, LLC	470	$439K	0.33%	-191	13F-HR Timeline
Sharkey, Howes & Javer	469	$438K	0.05%	+1	13F-HR Timeline
Seaside Wealth Management, Inc.	468	$438K	0.11%	+15	13F-HR Timeline
Warther Private Wealth, LLC	468	$438K	0.1%	-100	13F-HR Timeline
FIRST AMERICAN BANK	467	$437K	0.02%	-29	13F-HR Timeline
Salomon & Ludwin, LLC	472	$436K	0.04%	-40	13F-HR Timeline
Aberdeen Wealth Management LLC	466	$436K	0.21%	-250	13F-HR Timeline
Next Level Private LLC	466	$435K	0.09%	-8	13F-HR Timeline
LANDAAS & CO /WI /ADV	465	$435K	0.08%	0	13F-HR Timeline
Meritas Wealth Management, LLC	465	$435K	0.17%	0	13F-HR Timeline
Worth Financial Advisory Group, LLC	464	$434K	0.18%	new	13F-HR Timeline
Global Wealth Strategies & Associates	463	$433K	0.08%	+23	13F-HR Timeline
LOWE BROCKENBROUGH & CO INC	462	$432K	0.02%	0	13F-HR Timeline
Kidder Stephen W	462	$432K	0.11%	-25	13F-HR Timeline
Stewardship Advisors, LLC	462	$432K	0.09%	-9	13F-HR Timeline
Wealthquest Corp	461	$431K	0.03%	+21	13F-HR Timeline
RS CRUM INC.	459	$430K	0.08%	0	13F-HR Timeline
Intellectus Partners, LLC	459	$429K	0.07%	+38	13F-HR Timeline
FOSTER & MOTLEY INC	459	$429K	0.02%	+17	13F-HR Timeline
Mountain Capital Investment Advisors In…	458	$429K	0.06%	-22	13F-HR Timeline
Founders Capital Management	457	$428K	0.18%	-1	13F-HR Timeline
PLIMOTH TRUST CO LLC	457	$428K	0.09%	-4	13F-HR Timeline
SIERRA OCEAN, LLC	457	$427K	0.3%	+126	13F-HR Timeline
Wellington Grp LLC	456	$427K	0.11%	-69	13F-HR/A Timeline
Foster Victor Wealth Advisors, LLC	463	$427K	0.02%	+1	13F-HR Timeline
RESTON WEALTH MANAGEMENT LLC	455	$426K	0.11%	-13	13F-HR Timeline
Strategic Financial Concepts, LLC	454	$425K	0.13%	-137	13F-HR Timeline
FORM Wealth Advisors, LLC	454	$425K	0.05%	0	13F-HR Timeline
Everest Private Wealth	454	$425K	0.16%	+20	13F-HR Timeline
Perissos Private Wealth Management, LLC	453	$423K	0.29%	+1	13F-HR Timeline
Burford Brothers, Inc.	452	$423K	0.16%	+43	13F-HR Timeline
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.	452	$423K	0.01%	+448	13F-HR Timeline Group
DecisionMap Wealth Management, LLC	452	$423K	0.24%	+28	13F-HR Timeline
Integrity Wealth Solutions LLC	452	$423K	0.16%	-66	13F-HR Timeline
Hamilton Point Investment Advisors, LLC	452	$423K	0.06%	-5	13F-HR Timeline
Sageworth Trust Co of South Dakota	451	$422K	0.26%	new	13F-HR Timeline
Three Magnolias Financial Advisors, LLC	451	$422K	0.24%	0	13F-HR Timeline
Elgethun Capital Management	451	$422K	0.06%	+34	13F-HR Timeline
Private Wealth Asset Management, LLC	451	$421K	0.04%	+10	13F-HR Timeline
Gen-Wealth Partners Inc	450	$421K	0.12%	-193	13F-HR Timeline
BIRCHBROOK, INC.	450	$421K	0.2%	0	13F-HR Timeline
Quantum Private Wealth, LLC	450	$421K	0.11%	0	13F-HR Timeline
PANORAMIC INVESTMENT ADVISORS, LLC	449	$420K	0.2%	0	13F-HR Timeline
VEGA INVESTMENT SOLUTIONS	448	$419K	0.06%	+395	13F-HR Timeline
Targeted Financial Services LLC	448	$419K	0.31%	+36	13F-HR Timeline
CGC Financial Services, LLC	447	$419K	0.09%	-24	13F-HR Timeline
Hopwood Financial Services, Inc.	445	$416K	0.24%	+23	13F-HR Timeline
Alliance Wealth Advisors, LLC /UT	445	$416K	0.08%	-74	13F-HR Timeline
Williams & Novak Wealth Management, LLC	445	$416K	0.28%	-19	13F-HR Timeline
Spectrum Wealth Advisory Group, LLC	445	$416K	0.12%	-14	13F-HR Timeline
XY Planning Network, Inc.	443	$414K	0.05%	-222	13F-HR Timeline
STG SECURITIES, LLC	442	$413K	0.45%		13F-HR Timeline
626 Financial, LLC	441	$413K	0.16%	-33	13F-HR Timeline
BROWN WEALTH MANAGEMENT, LLC	441	$413K	0.09%	+13	13F-HR Timeline
Cottage Street Advisors LLC	441	$412K	0.16%	-6	13F-HR Timeline
Northwest Bancshares, Inc.	440	$412K	0.07%	+40	13F-HR Timeline
ERn Financial, LLC	440	$412K	0.07%	0	13F-HR Timeline
Tripletail Wealth Management, LLC	432	$411K	0.47%	0	13F-HR Timeline
Code Waechter LLC	439	$411K	0.21%	+19	13F-HR Timeline
Semus Wealth Partners LLC	438	$410K	0.2%	-2	13F-HR Timeline
Sonoma Allocations LLC	440	$410K	0.13%	-37	13F-HR Timeline
Atlas Wealth LLC	438	$410K	0.06%	0	13F-HR Timeline
Hickory Point Bank & Trust	438	$410K	0.25%	0	13F-HR Timeline
VIMA LLC	436	$408K	0.4%		13F-HR Timeline
Fullerton Fund Management Co Ltd.	436	$408K	0.03%	-1,332	13F-HR Timeline
Jacksonville Wealth Management, LLC	436	$408K	0.23%	+1	13F-HR Timeline
Charter Capital Management, LLC\DE	435	$407K	0.18%	-3	13F-HR Timeline
Baron Wealth Management LLC	435	$407K	0.11%	+4	13F-HR Timeline
Summit Financial Consulting LLC	435	$407K	0.28%	0	13F-HR Timeline
G2 CAPITAL MANAGEMENT, LLC / OH	435	$407K	0.09%	-1,562	13F-HR Timeline
V. M. MANNING & CO., INC.	434	$406K	0.35%		13F-HR Timeline
Cloud Capital Management, LLC	435	$406K	0.15%	-2	13F-HR Timeline
Garrett Wealth Advisory Group, LLC	434	$406K	0.06%	-5	13F-HR Timeline
FORTRESS PRIVATE LEDGER, LLC	433	$405K	0.11%	0	13F-HR Timeline
DDFG, Inc	432	$404K	0.08%	0	13F-HR Timeline
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …	432	$404K	0.02%	-23	13F-HR Timeline Group
Tacita Capital Inc	432	$404K	0.22%	0	13F-HR Timeline
Piedmont Capital Management, LLC/NC	432	$404K	0.25%	-19	13F-HR Timeline
ONE WEALTH CAPITAL MANAGEMENT, LLC	431	$403K	0.11%	+198	13F-HR Timeline
Dynasty Wealth Management, LLC	430	$402K	<0.01%	-50	13F-HR Timeline
Kondo Wealth Advisors, Inc.	428	$401K	0.13%	-2	13F-HR Timeline
Scissortail Wealth Management, LLC	428	$400K	0.08%	-11	13F-HR Timeline
Novak & Powell Financial Services, Inc.	427	$400K	0.19%	-12	13F-HR Timeline
UHLMANN PRICE SECURITIES, LLC	427	$400K	0.01%	+49	13F-HR Timeline
Welch Financial Planning, LLC	425	$398K	0.23%	+52	13F-HR Timeline
Armor Investment Advisors, LLC	425	$398K	0.13%	0	13F-HR Timeline
Topsail Wealth Management, LLC	425	$398K	0.05%	-5	13F-HR Timeline
One River Asset Management, LLC	424	$397K	1.9%	new	13F-HR Timeline
Fearless Solutions, LLC dba Best Invest	423	$396K	0.21%	0	13F-HR Timeline
HHM Wealth Advisors, LLC	423	$396K	0.04%	+24	13F-HR Timeline
GABLES CAPITAL MANAGEMENT INC.	423	$396K	0.14%	+64	13F-HR Timeline
Family Capital Management, Inc.	423	$396K	0.15%	+11	13F-HR Timeline
CPC Advisors, LLC	422	$395K	0.05%	-2	13F-HR Timeline
Koesten, Hirschmann & Crabtree, INC.	422	$394K	0.16%	+20	13F-HR Timeline
Summit Financial Strategies, Inc.	421	$394K	0.03%	+13	13F-HR Timeline
Dynamic Wealth Strategies, LLC	421	$394K	0.21%	-75	13F-HR Timeline
Northern Lights Advisors, Inc.	421	$394K	0.21%	+28	13F-HR Timeline
VIAWEALTH, LLC	420	$393K	0.2%	+8	13F-HR Timeline