COST COSTCO WHOLESALE CORPORATION

COM (common), issuer CIK 909832

4,074 managers (4,142 13F filers) reported a position in COST shares at 2025-12-31, 316,984,800 shares in all. 110 filers opened a position and 174 filers sold out during the quarter.

Managers: 4,074
13F filers: 4,142
New: 110
Added: 1,564
Reduced: 1,653
Sold out: 174
Shares held by filers: 316,984,800

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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
Delta Accumulation, LLC	800	$690K	0.7%	new	13F-HR/A Timeline
Legacy Wealth Partners, LLC	800	$690K	0.18%		13F-HR Timeline
Trademark Financial Management, LLC	799	$689K	0.38%	-75	13F-HR Timeline
Empirical Asset Management, LLC	39,576	$689K	0.19%	-73	13F-HR Timeline
Advyzon Investment Management, LLC	799	$689K	0.08%	+175	13F-HR Timeline
Winthrop Partners - WNY, LLC	799	$689K	0.37%		13F-HR Timeline
KWMG, LLC	797	$687K	0.06%	+24	13F-HR Timeline
Symmetry Partners, LLC	796	$687K	0.04%	-80	13F-HR Timeline
VIRTUE ASSET MANAGEMENT LLC	793	$684K	0.55%	-45	13F-HR Timeline
HORAN Wealth, LLC	793	$684K	0.11%	+20	13F-HR Timeline
KRS Capital Management, LLC	792	$683K	0.39%	+12	13F-HR Timeline
Clark Asset Management, LLC	792	$683K	0.07%	+337	13F-HR Timeline
Medallion Wealth Advisors, LLC	790	$681K	0.23%	+51	13F-HR Timeline
Hamilton Capital, LLC	790	$681K	0.03%		13F-HR Timeline
Legacy PCG, LLC	790	$681K	0.42%	-3	13F-HR Timeline
1248 Management, LLC	790	$681K	0.36%	0	13F-HR Timeline
BDFS Capital LLC	789	$681K	0.34%		13F-HR Timeline
Oakmont Investment Advisors, Inc.	784	$678K	0.5%		13F-HR Timeline
Edgemoor Investment Advisors, Inc.	785	$678K	0.05%	-27	13F-HR Timeline
Ruggaard & Associates LLC	781	$673K	0.27%	-3	13F-HR Timeline
Thrive Wealth Management, LLC	780	$673K	0.1%	-3	13F-HR Timeline
Affinity Capital Advisors, LLC	780	$672K	0.09%	+38	13F-HR Timeline
Wealth Management Associates, Inc.	779	$672K	0.23%	-3	13F-HR Timeline
First City Capital Management, Inc.	779	$672K	0.35%	-10	13F-HR Timeline
LEIGH BALDWIN & CO., LLC	778	$671K	0.44%	-264	13F-HR Timeline
AmeriServ Wealth Advisorsin group AmeriServ Wealth Advisors	778	$671K	0.39%	-469	13F-HR Timeline Group
Successful Portfolios LLC	725	$671K	0.34%	+100	13F-HR Timeline
Investment Partners Asset Management, I…	777	$670K	0.42%	-10	13F-HR Timeline
Strid Group, LLC	777	$670K	0.08%	+448	13F-HR Timeline
Summit Financial Wealth Advisors, LLC	776	$669K	0.1%	-43	13F-HR Timeline
Virtue Capital Management, LLC	783	$669K	0.1%	-1,047	13F-HR/A Timeline
Alpha Financial Partners LLC	776	$669K	0.41%	+11	13F-HR Timeline
Braeburn Wealth Management LLC	773	$667K	0.34%		13F-HR Timeline
Austin Wealth Management, LLC	729	$667K	0.1%	-343	13F-HR Timeline
KFA Private Wealth Group, LLC	773	$667K	0.16%	+53	13F-HR Timeline
1776 Wealth LLC	772	$666K	0.25%	-26	13F-HR Timeline
Key Client Fiduciary Advisors, LLC	772	$666K	0.23%	-18	13F-HR Timeline
Templeton & Phillips Capital Management…	771	$665K	0.44%	0	13F-HR Timeline
Empire Financial Management Company, LLC	770	$664K	0.14%	0	13F-HR Timeline
Presidio Capital Management, LLC	769	$663K	0.2%	+108	13F-HR Timeline
Riverwater Partners LLC	767	$661K	0.26%	-12	13F-HR Timeline
First Growth Capital LLC	676	$661K	0.59%		13F-HR Timeline
SEIZERT CAPITAL PARTNERS, LLC	763	$658K	0.03%	0	13F-HR Timeline
BEACON FINANCIAL GROUP	762	$657K	0.07%	-118	13F-HR Timeline
MN Wealth Advisors, LLC	761	$656K	0.33%	+66	13F-HR Timeline
Per Stirling Capital Management, LLC.	760	$655K	0.07%	+395	13F-HR Timeline
SilverOak Wealth Management LLC	759	$655K	0.1%	+2	13F-HR Timeline
Blossom Wealth Management	759	$654K	1.08%	-13	13F-HR Timeline
Callahan Advisors, LLC	758	$654K	0.05%	-12	13F-HR Timeline
LGT Fund Management Co Ltd.	755	$654K	0.05%	+200	13F-HR Timeline
Rise Advisors, LLC	758	$654K	0.23%	-26	13F-HR Timeline
Strategic Planning, Inc.	758	$654K	0.35%	0	13F-HR Timeline
Austin Private Wealth, LLC	755	$651K	0.05%	-20	13F-HR Timeline
Murphy & Mullick Capital Management Corp	754	$651K	0.47%	+82	13F-HR Timeline
Firestone Capital Management	753	$649K	0.14%	+7	13F-HR Timeline
Gilman Hill Asset Management, LLC	752	$649K	0.1%	+54	13F-HR Timeline
WJ Wealth Management, LLC	751	$648K	0.28%	0	13F-HR Timeline
Swisher Financial Concepts, Inc.	751	$648K	0.37%	+21	13F-HR Timeline
Clarendon Private LLC	751	$647K	0.55%	-38	13F-HR Timeline
AUA CAPITAL MANAGEMENT, LLC	750	$647K	0.32%	0	13F-HR Timeline
LeClair Wealth Partners LLC	748	$645K	0.37%	-21	13F-HR Timeline
TOBIAS FINANCIAL ADVISORS, INC.	746	$644K	0.09%	-454	13F-HR Timeline
AIMZ Investment Advisors, LLC	744	$642K	0.18%	0	13F-HR Timeline
Benchmark Financial, LLC	743	$641K	0.64%		13F-HR Timeline
Jacobsen Capital Management	743	$641K	0.21%	-23	13F-HR Timeline
Selective Wealth Management, Inc.	668	$639K	0.2%	-142	13F-HR Timeline
Aspen Grove Capital, LLC	739	$638K	0.11%	-3	13F-HR Timeline
Scarborough Advisors, LLC	739	$637K	0.11%	+3	13F-HR Timeline
MCRAE CAPITAL MANAGEMENT INC	738	$636K	0.13%	-190	13F-HR Timeline
SOUTH PLAINS FINANCIAL, INC.	738	$636K	0.38%	+56	13F-HR Timeline
CAPSTONE WEALTH MANAGEMENT GROUP, LLC	737	$636K	0.27%	+248	13F-HR Timeline
Trust Co of the South	737	$636K	0.1%	-804	13F-HR Timeline
Eaton Financial Holdings Company, LLC	736	$635K	0.17%	-5,005	13F-HR Timeline
Kera Capital Partners, Inc.	673	$633K	0.08%	-204	13F-HR Timeline
Scott Capital Advisors, LLC	734	$633K	0.14%	-499	13F-HR Timeline
J.Safra Asset Management Corp	733	$633K	0.03%	0	13F-HR Timeline
FLOYD FINANCIAL GROUP LLC	640	$631K	0.43%	+71	13F-HR Timeline
EMERALD ADVISERS, LLCgroup of 2 filers holding	731	$630K		-188	Timeline EMERALD ADVISERS, LLC: 731 (0.02%) 13F-HR EMERALD MUTUAL FUND ADVISERS TRUST: sold out, -169 13F-HR
Southland Equity Partners LLC	730	$630K	0.12%	+7	13F-HR Timeline
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC	730	$629K	0.16%	+274	13F-HR Timeline Group
Wellington Grp LLC	729	$629K	0.21%		13F-HR/A Timeline
TigerOak Management, L.L.C.	725	$625K	0.19%	0	13F-HR Timeline
One Wealth Map LLC	646	$625K	0.32%	+215	13F-HR Timeline
Pine Harbor Wealth Management, LLC	725	$625K	0.19%	+10	13F-HR Timeline
Sandy Cove Advisors, LLC	724	$624K	0.18%	-48	13F-HR Timeline
Planned Solutions, Inc.	724	$624K	0.2%	+225	13F-HR Timeline
Poehling Capital Management, INC.	723	$623K	0.13%	0	13F-HR Timeline
Oakmont Advisory Group, LLC	723	$623K	0.67%		13F-HR Timeline
Rooted Wealth Advisors, Inc.	636	$622K	0.18%	+22	13F-HR Timeline
Argos Wealth Advisors, LLC	722	$622K	0.17%		13F-HR Timeline
Royal Capital Wealth Management, LLC	721	$622K	0.37%	0	13F-HR Timeline
Smith & Howard Wealth Management, LLC	721	$622K	0.14%	0	13F-HR Timeline
Old Port Advisors	721	$622K	0.15%	-17	13F-HR Timeline
PRIVATE CLIENT SERVICES, LLC	720	$621K	0.19%	-41	13F-HR Timeline
Ninepoint Partners LP	720	$621K	0.07%	0	13F-HR Timeline
Karani Asset Management LLC	719	$620K	0.54%	-2	13F-HR Timeline
Key Financial Inc	719	$620K	0.11%	0	13F-HR Timeline
EdgeRock Capital LLC	718	$620K	0.16%	-237	13F-HR Timeline
Dempze Nancy E	718	$619K	0.32%	+75	13F-HR Timeline
COLLECTIVE FAMILY OFFICE LLC	718	$619K	0.14%	-5	13F-HR Timeline
DARK FOREST CAPITAL MANAGEMENT LP	718	$619K	0.03%	new	13F-HR Timeline
BOOTHBAY FUND MANAGEMENT, LLC	717	$618K	0.02%	-269	13F-HR Timeline
Eurizon SLJ Capital Ltd	717	$618K	0.24%		13F-HR Timeline
Aberdeen Wealth Management LLC	716	$617K	0.29%	0	13F-HR Timeline
Orin Green Financial, LLC	716	$617K	0.25%	-2	13F-HR Timeline
CHAPIN DAVIS, INC.	715	$617K	0.14%	-2	13F-HR Timeline
BOS Asset Management, LLC	715	$617K	0.17%	-1	13F-HR Timeline
Gambit Capital Management, LLC	715	$617K	0.44%		13F-HR Timeline
Oder Investment Management, LLC	714	$616K	0.45%	0	13F-HR Timeline
Elm3 Financial Group, LLC	714	$616K	0.51%	-73	13F-HR Timeline
Financial Management Professionals, Inc.	712	$614K	0.06%	-74	13F-HR Timeline
Sunflower Bank, N.A.	711	$613K	0.15%	-17	13F-HR Timeline
Ipsen Advisor Group LLC	711	$613K	0.44%	0	13F-HR Timeline
Riverstone Advisors, LLC	710	$612K	0.29%	-22	13F-HR Timeline
Hendershot Investments Inc.	708	$611K	0.08%	+11	13F-HR Timeline
Asio Capital, LLC	708	$611K	0.09%	-2	13F-HR Timeline
Bravias Capital Group, LLC	707	$610K	0.37%	-138	13F-HR Timeline
WHITE PINE CAPITAL LLC	705	$608K	0.17%	0	13F-HR Timeline
Abound Wealth Management	703	$606K	0.14%	-62	13F-HR Timeline
Berkshire Money Management, Inc.	702	$605K	0.06%	new	13F-HR Timeline
WealthBridge Capital Management, LLC	702	$605K	0.14%	-81	13F-HR Timeline
Palisade Asset Management, LLC	702	$605K	0.06%	+10	13F-HR Timeline
Well Done, LLC	702	$605K	0.09%	+401	13F-HR Timeline
Alaska Wealth Advisors, LLCin group Alaska Permanent Capital Mana…	700	$604K	0.08%	+6	13F-HR Timeline Group
HRC WEALTH MANAGEMENT, LLC	700	$603K	0.29%	-57	13F-HR Timeline
LRI Investments, LLC	700	$603K	0.05%	-9	13F-HR Timeline
Cascade Wealth Advisors, Inc	624	$600K	0.28%	0	13F-HR Timeline
IAMS WEALTH MANAGEMENT, LLC	695	$600K	0.22%	+87	13F-HR Timeline
Quantum Financial Advisors, LLC	695	$600K	0.07%	+1	13F-HR Timeline
Phillips Wealth Planners LLC	610	$600K	0.48%	-37	13F-HR Timeline
Rosenberg Matthew Hamilton	695	$599K	0.12%	+1	13F-HR Timeline
Boomfish Wealth Group, LLC	695	$599K	0.32%	-324	13F-HR Timeline
Capital Squared Financial LLC	695	$599K	0.47%	+47	13F-HR Timeline
Foundation Wealth Management, LLC	691	$598K	0.39%	-8	13F-HR Timeline
Clean Yield Group	693	$598K	0.17%	-12	13F-HR Timeline
Colter Lewis Investment Partners LLC	693	$598K	0.69%		13F-HR Timeline
Y-Intercept (Hong Kong) Ltd	691	$596K	0.01%	-4,337	13F-HR Timeline
XY Planning Network, Inc.	690	$595K	0.1%	+135	13F-HR Timeline
FIDUCIARY FINANCIAL GROUP, LLC	690	$595K	0.08%	+373	13F-HR Timeline
B&D White Capital Company, LLC	690	$595K	0.07%	+400	13F-HR Timeline
Verum Partners LLC	689	$594K	0.12%	-7	13F-HR Timeline
Tidemark, LLC	689	$594K	0.17%	-23	13F-HR Timeline
J. L. Bainbridge & Co., Inc.	687	$592K	0.05%	0	13F-HR Timeline
Veracity Capital LLC	686	$592K	0.18%	-65	13F-HR Timeline
Gibson Capital, LLC	686	$592K	0.11%	-289	13F-HR Timeline
M1 Capital Management LLC	685	$591K	0.25%	+41	13F-HR Timeline
CORRECT CAPITAL WEALTH MANAGEMENT	685	$591K	0.11%	0	13F-HR Timeline
Paladin Wealth, LLC	685	$591K	0.4%	-50	13F-HR Timeline
SFM, LLC d/b/a Sweeney Financial Adviso…	684	$590K	0.35%	+9	13F-HR Timeline
KFG WEALTH MANAGEMENT, LLC	683	$589K	0.08%	-87	13F-HR Timeline
Warther Private Wealth, LLC	682	$588K	0.14%	+41	13F-HR Timeline
Private Wealth Asset Management, LLC	681	$587K	0.06%	+13	13F-HR Timeline
Williams & Novak Wealth Management, LLC	679	$586K	0.44%	-75	13F-HR Timeline
PEOPLES FINANCIAL SERVICES CORP.	679	$586K	0.27%	-84	13F-HR Timeline
Compagnie Lombard Odier SCmA	678	$585K	0.01%	+271	13F-HR Timeline
MARIPAU WEALTH MANAGEMENT LLC	680	$585K	0.27%	+378	13F-HR Timeline
Momentous Wealth Management, Inc.	676	$583K	0.33%	+19	13F-HR Timeline
Beacon Financial Advisory LLC	675	$582K	0.13%	-241	13F-HR Timeline
Legacy Capital Group California, Inc.	675	$582K	0.14%	-5	13F-HR Timeline
Clarity Wealth Development LLC	675	$582K	0.49%	0	13F-HR Timeline
Mountain Capital Investment Advisors In…	591	$581K	0.09%	+19	13F-HR Timeline
Veridan Wealth LLC	673	$580K	0.2%	-31	13F-HR Timeline
Hiley Hunt Wealth Management	672	$580K	0.26%	+1	13F-HR Timeline
Hartmann Taylor Wealth Management, LLC	672	$579K	0.39%	0	13F-HR Timeline
CULBERTSON A N & CO INC	670	$578K	0.08%	0	13F-HR Timeline
Caliber Wealth Management, LLC / KS	669	$577K	0.06%	+14	13F-HR Timeline
Echo45 Advisors LLC	669	$577K	0.33%	-29	13F-HR Timeline
Copia Wealth Management	668	$576K	0.41%	-122	13F-HR Timeline
Blankinship & Foster, LLC	666	$574K	0.12%	-5	13F-HR Timeline
Ameliora Wealth Management Ltd.	666	$574K	0.17%	+36	13F-HR Timeline
Park Place Capital Corp	665	$573K	0.12%	-2	13F-HR Timeline
Cornerstone National Bank & Trust Co	665	$573K	0.23%	+5	13F-HR Timeline
BINGHAM PRIVATE WEALTH, LLC	663	$572K	0.49%		13F-HR Timeline
VAN STRUM & TOWNE INC.	662	$571K	0.16%	-20	13F-HR Timeline
FSB PREMIER WEALTH MANAGEMENT, INC.	660	$569K	0.18%	+82	13F-HR Timeline
Fi3 FINANCIAL ADVISORS, LLC	660	$569K	0.17%	-43	13F-HR Timeline
Advisor Resource Council	589	$569K	0.2%	new	13F-HR Timeline
MAGNOLIA CAPITAL ADVISORS LLC	656	$566K	0.12%	+110	13F-HR Timeline
HARRIS ASSOCIATES L P	656	$566K	<0.01%	+75	13F-HR Timeline
Drucker Wealth 3.0, LLC	655	$565K	0.1%	-30	13F-HR Timeline
Point Windward Advisors Inc.	655	$565K	0.27%	0	13F-HR Timeline
First Fiduciary Investment Counsel, Inc.	654	$564K	0.11%	0	13F-HR Timeline
Altrafin AG	654	$564K	0.18%	-30	13F-HR Timeline
HOWARD WEALTH MANAGEMENT, LLC	653	$563K	0.25%	-465	13F-HR Timeline
CWC Advisors, LLC.	653	$563K	0.27%	+22	13F-HR Timeline
a16z Perennial Management, L.P.in group a16z Capital Management, L.L.…	653	$563K	0.04%	-3	13F-HR Timeline Group
West Wealth Group, LLC	652	$563K	0.12%	+19	13F-HR Timeline
Total Clarity Wealth Management, Inc.	652	$562K	0.14%	+54	13F-HR Timeline
Pictet North America Advisors SA	651	$561K	0.05%	0	13F-HR Timeline
Triumph Capital Management	651	$561K	0.12%	+243	13F-HR Timeline
Brandywine Financial Group	650	$561K	1.22%		13F-HR Timeline
New Millennium Group LLC	648	$559K	0.24%	-485	13F-HR Timeline
Peterson Wealth Advisors, LLC	648	$559K	0.07%	+43	13F-HR Timeline
HEADINVEST, LLC	648	$559K	0.11%	+24	13F-HR Timeline
THOMPSON INVESTMENT MANAGEMENT, INC.	648	$559K	0.07%	0	13F-HR Timeline
INVESTED ADVISORS	647	$558K	0.58%	+62	13F-HR Timeline
CHARTER RESEARCH & INVESTMENT GROUP, IN…	647	$558K	0.37%	0	13F-HR Timeline
CPA Asset Management Group, LLC	647	$558K	0.2%	-471	13F-HR Timeline
Navis Wealth Advisors, LLC	645	$557K	0.24%	+144	13F-HR Timeline
SBE LLC DBA CEDAR COVE WEALTH PARTNERS	643	$554K	0.29%		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