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
Cetera Trust Company, N.A	999	$861K	0.46%	-10	13F-HR Timeline
Greenwich Wealth Management LLC	996	$859K	0.04%	0	13F-HR Timeline
Blue Zone Wealth Advisors, LLC	993	$856K	0.16%	-10	13F-HR Timeline
Scientech Research LLC	993	$856K	0.54%	new	13F-HR Timeline
Oslo Pensjonsforsikring AS	992	$855K	0.13%	0	13F-HR Timeline
PITCAIRN COgroup of 2 filers holding	991	$855K		-5,265	Timeline Pitcairn Wealth Advisors LLC: 991 (0.08%) 13F-HR PITCAIRN CO: sold out, -6,256 13F-HR
Old Mission Investment Co LLC	990	$854K	0.2%	+58	13F-HR Timeline
Pacific Capital Wealth Advisors, Inc.	990	$854K	0.15%	-34	13F-HR Timeline
Clearview Wealth Advisors LLC	987	$851K	0.54%	-112	13F-HR Timeline
BERKSHIRE ASSET MANAGEMENT LLC/PA	985	$850K	0.04%	+164	13F-HR Timeline
Altus Wealth Group LLC	983	$848K	0.34%	+30	13F-HR Timeline
ANCHYRA PARTNERS LLC	983	$848K	0.26%		13F-HR Timeline
1015 Capital Partners, LLC	982	$847K	0.83%		13F-HR Timeline
Atala Financial Inc	981	$846K	0.54%	-200	13F-HR Timeline
Intrua Financial, LLC	980	$845K	0.09%	+12	13F-HR Timeline
Calydon Capital	979	$844K	0.14%	-118	13F-HR Timeline
Farmers National Bank	978	$843K	0.19%	+395	13F-HR Timeline
Caitlin John, LLC	978	$843K	0.55%	+819	13F-HR Timeline
Syverson Strege & Co	977	$843K	0.2%	-65	13F-HR Timeline
Omega Financial Group, LLC	975	$841K	0.28%	-618	13F-HR Timeline
Weinberger Asset Management, Inc	973	$839K	0.3%	-19	13F-HR Timeline
GFS Advisors, LLC	972	$838K	0.1%	+24	13F-HR Timeline
MFA Wealth Services	971	$837K	0.57%	+26	13F-HR Timeline
NESTEGG ADVISORS, INC.	970	$837K	0.71%	0	13F-HR Timeline
NORTH DALLAS BANK & TRUST CO	970	$836K	0.55%		13F-HR Timeline
Trinity Financial Advisors LLC	969	$836K	0.23%	-34	13F-HR Timeline
Waycross Investment Management Co	966	$833K	0.73%	+1	13F-HR Timeline
VANCE WEALTH, LLC	965	$832K	0.25%	-23	13F-HR/A Timeline
Nolet Wealth Management, LLC	964	$832K	0.46%		13F-HR/A Timeline
Mraz, Amerine & Associates, Inc.	962	$830K	0.12%	-42	13F-HR Timeline
WOODLEY FARRA MANION PORTFOLIO MANAGEME…	961	$829K	0.04%	+2	13F-HR Timeline
Tanager Wealth Management LLP	961	$829K	0.08%	+37	13F-HR Timeline
LJI Wealth Management, LLC	961	$829K	0.13%	0	13F-HR Timeline
Fermata Advisors, LLC	960	$828K	0.2%	-108	13F-HR Timeline
TSG Advice Partners, LLC	959	$827K	0.13%		13F-HR Timeline
Fullerton Fund Management Co Ltd.	959	$827K	0.04%	-1,548	13F-HR Timeline
Goldenstone Wealth Management LLC	956	$825K	0.62%		13F-HR Timeline
Veery Capital, LLC	956	$824K	0.25%	0	13F-HR Timeline
Cardinal Strategic Wealth Guidance	955	$824K	0.22%	0	13F-HR Timeline
Advocate Investing Services LLC	955	$824K	0.74%		13F-HR Timeline
Brown Miller Wealth Management, LLC	954	$822K	0.23%	-17	13F-HR Timeline
Breakwater Capital Group	953	$822K	0.11%	-25	13F-HR Timeline
Papamarkou Wellner Asset Management inc.	953	$822K	0.49%	+91	13F-HR Timeline
Argyle Capital Partners, LLC	952	$821K	0.6%	+37	13F-HR Timeline
Pacifica Partners Inc.	958	$819K	0.36%	+118	13F-HR Timeline
ARBOR CAPITAL MANAGEMENT INC /ADV	935	$818K	0.69%	-190	13F-HR Timeline
May Hill Capital, LLC	948	$818K	0.22%	-79	13F-HR/A Timeline
Box Hill Private Wealth LLC	943	$814K	0.82%		13F-HR Timeline
Gradient Capital Advisors, LLC	939	$810K	0.21%	+5	13F-HR Timeline
SMITH, MOORE & CO.	939	$810K	0.06%	-196	13F-HR Timeline
MERIDIAN INVESTMENT COUNSEL INC.	939	$810K	0.2%	-127	13F-HR Timeline
Long Road Investment Counsel, LLC	938	$809K	0.31%	+530	13F-HR Timeline
Arrowroot Family Office, LLC	937	$808K	0.29%	-850	13F-HR Timeline
UPTICK PARTNERS, LLC	936	$807K	0.17%	-239	13F-HR Timeline
Avanza Fonder AB	936	$807K	0.02%	new	13F-HR Timeline
Conestoga Capital Advisors, LLC	935	$806K	0.01%	-120	13F-HR Timeline
Tradewinds, LLC.	935	$806K	0.19%	-39	13F-HR Timeline
Bridgewealth Advisory Group, LLC	935	$806K	0.18%	-24	13F-HR Timeline
Elevation Wealth Management LLC	934	$806K	0.77%		13F-HR Timeline
Advisory Advocates, LLC	934	$806K	0.8%		13F-HR Timeline
FIRST FINANCIAL CORP /IN/	934	$805K	0.3%	0	13F-HR Timeline
INSPIRION WEALTH ADVISORS, LLC	934	$805K	0.1%	+87	13F-HR Timeline
Davies Financial Advisors, Inc.	933	$805K	1.49%	-1,149	13F-HR Timeline
Crescent Grove Advisors, LLC	932	$804K	0.08%	+246	13F-HR Timeline
AFFINITY WEALTH MANAGEMENT LLC	932	$804K	0.11%	-15	13F-HR Timeline
HOWARD FINANCIAL SERVICES, LTD.	930	$802K	0.09%	-16	13F-HR Timeline
Mascoma Wealth Management LLC	930	$802K	0.17%	-12	13F-HR Timeline
TWIN PEAKS WEALTH ADVISORS, LLC	803	$801K	0.23%	+395	13F-HR Timeline
Balefire, LLC	929	$801K	0.16%	-227	13F-HR Timeline
LifeWealth Investments, LLC	928	$800K	0.25%	+5	13F-HR Timeline
Millstone Evans Group, LLC	928	$800K	0.47%	0	13F-HR Timeline
One Charles Private Wealth Services, LLC	928	$800K	0.21%	-29	13F-HR Timeline
Beacon Bank & Trust	927	$799K	0.16%	-471	13F-HR Timeline
Helium Advisors LLC	927	$799K	0.81%	-157	13F-HR Timeline
CALTON & ASSOCIATES, INC.	926	$799K	0.12%	+145	13F-HR Timeline
Live Oak Private Wealth LLC	926	$799K	0.11%	0	13F-HR Timeline
Lifeworks Advisors, LLC	924	$797K	0.1%	+103	13F-HR Timeline
Onyx Bridge Wealth Group LLC	923	$796K	0.08%	+80	13F-HR Timeline
Provident Investment Management, Inc.	920	$793K	0.07%	0	13F-HR Timeline
Greystone Financial Group, LLC	919	$792K	0.12%	+32	13F-HR Timeline
Family Manage LLC	918	$792K	0.1%	+271	13F-HR Timeline
Washington Trust Advisors, Inc.	918	$792K	0.06%	+110	13F-HR Timeline
Sherman Asset Management, Inc.	918	$791K	0.67%	+1	13F-HR Timeline
TPG Advisors LLC	917	$791K	0.49%	-160	13F-HR Timeline
JB Capital LLC	916	$790K	0.03%	+74	13F-HR Timeline
PEOPLES BANK /OH	915	$789K	0.49%	-16	13F-HR Timeline
Anson Funds Management LPin group Anson Funds Management LP	913	$787K	0.11%	+145	13F-HR Timeline Group
Curbstone Financial Management Corp	912	$786K	0.15%	+70	13F-HR Timeline
Courage Miller Partners, LLC	910	$785K	0.24%	+3	13F-HR Timeline
RIVERSEDGE ADVISORS, LLC	907	$782K	0.13%	-155	13F-HR Timeline
NIXON PEABODY TRUST CO	906	$781K	0.06%	-138	13F-HR Timeline
Menard Financial Group LLC	900	$776K	0.53%	+14	13F-HR Timeline
PAYDEN & RYGEL	900	$776K	0.05%	-10,700	13F-HR Timeline
Indivisible Partners	895	$772K	0.08%		13F-HR Timeline
Embree Financial Group	895	$771K	0.09%	-278	13F-HR Timeline
Northstar Financial Companies, Inc.	894	$771K	0.61%	-156	13F-HR Timeline
Finward Bancorp	890	$767K	0.6%	-436	13F-HR Timeline
Tuttle Capital Management, LLC	889	$767K	1.7%	+223	13F-HR Timeline
Alvarez & Marsal Private Wealth Partner…	889	$767K	0.15%		13F-HR Timeline
Beverly Hills Private Wealth, LLC	887	$765K	0.13%	-20	13F-HR/A Timeline
American Capital Advisory, LLC	887	$765K	0.33%	+28	13F-HR Timeline
Canal Capital Management, LLC	886	$764K	0.11%	+18	13F-HR Timeline
Plum Street Advisors, LLC	886	$764K	0.27%	0	13F-HR Timeline
FULCRUM WEALTH ADVISORS, LLC	886	$764K	0.63%		13F-HR Timeline
Sierra Legacy Group	885	$763K	0.56%	0	13F-HR Timeline
Capstone Capital Management Ltd	885	$763K	0.73%		13F-HR Timeline
Arkos Global Advisors	885	$763K	0.1%	+89	13F-HR Timeline
LAVELLE CAPITAL LP	884	$763K	0.48%		13F-HR Timeline
UNIQUE WEALTH, LLC	884	$763K	0.11%	-1	13F-HR Timeline
EAGLE HARBOR ASSET MANAGEMENT INC /ADV	883	$761K	0.63%	-61	13F-HR Timeline
Garden State Investment Advisory Servic…	879	$760K	0.18%	-163	13F-HR Timeline
White Knight Strategic Wealth Advisors,…	880	$759K	0.56%	+229	13F-HR Timeline
Permanent Capital Management, LP	879	$758K	0.15%	-65	13F-HR Timeline
Legacy Capital Wealth Partners, LLC	879	$758K	0.16%	+6	13F-HR Timeline
Ranch Capital Advisors Inc.	877	$756K	0.28%	+12	13F-HR Timeline
GWN SECURITIES INC.	876	$756K	0.15%	-45	13F-HR Timeline
Altiora Financial Group, LLC	875	$755K	0.13%	0	13F-HR Timeline
Tarbox Family Office, Inc.	874	$754K	0.12%	-19	13F-HR Timeline
Thompson David Blair	874	$754K	0.43%		13F-HR Timeline
CMG Global Holdings, LLC	768	$751K	0.33%	-16	13F-HR Timeline
Signal Advisors Wealth, LLC	871	$751K	0.06%	+66	13F-HR Timeline
Solidarity Wealth, LLC	870	$750K	0.15%	-47	13F-HR Timeline
Bannerstone Capital Management, LLC	869	$749K	0.72%		13F-HR Timeline
CAPITAL FINANCIAL GROUP INC\CO\ /ADV	869	$749K	0.42%		13F-HR Timeline
Avantra Family Wealth, Inc.	865	$746K	0.54%	0	13F-HR Timeline
WEALTH EFFECTS LLC	864	$745K	0.23%	+92	13F-HR Timeline
SLT Holdings LLC	862	$744K	0.5%	+181	13F-HR Timeline
New Capital Management LP	862	$744K	0.19%	-22	13F-HR Timeline
FAIRVIEW CAPITAL INVESTMENT MANAGEMENT,…	861	$743K	0.04%	-348	13F-HR Timeline
Northwest Wealth Advisors, LLC	861	$742K	0.58%		13F-HR Timeline
Elite Life Management LLC	740	$741K	1.2%	+196	13F-HR Timeline
Alchemi Wealth, LLC	858	$741K	0.41%		13F-HR Timeline
Morey & Quinn Wealth Partners, LLC	859	$741K	0.53%	0	13F-HR Timeline
Souders Financial Advisors	857	$739K	0.08%	-80	13F-HR Timeline
Symphony Financial Services, Inc.	855	$737K	0.38%	0	13F-HR Timeline
Councilmark Asset Management, LLC	855	$737K	0.41%	0	13F-HR Timeline
MONARCH CAPITAL MANAGEMENT INC	853	$736K	0.18%	0	13F-HR Timeline
VANTAGE WEALTH	852	$735K	0.16%	0	13F-HR Timeline
Frontier Asset Management, LLC	852	$735K	0.17%	new	13F-HR Timeline
Exchange Bank	852	$735K	0.51%	+32	13F-HR Timeline
Tandem Investment Partners LLC	851	$734K	0.62%	-139	13F-HR Timeline
Bill Few Associates, Inc.	849	$732K	0.18%	+65	13F-HR Timeline
W1M Asset Management Ltd	848	$731K	0.01%	new	13F-HR Timeline
Wealthspire Retirement, LLC	847	$731K	0.04%	-23	13F-HR Timeline
CHICKASAW CAPITAL MANAGEMENT LLC	846	$730K	0.03%	+71	13F-HR Timeline
PATRIOT INVESTMENT MANAGEMENT GROUP, IN…	846	$730K	0.05%	+17	13F-HR Timeline
M.E. ALLISON & CO., INC.	845	$729K	0.5%	+12	13F-HR Timeline
Evanson Asset Management, LLC	845	$729K	0.04%	+191	13F-HR Timeline
ELEVATION WEALTH PARTNERS, LLC	845	$729K	0.26%	-298	13F-HR Timeline
BLALOCK WILLIAMS, LLC	845	$729K	0.58%	-97	13F-HR Timeline
Weil Company, Inc.	842	$726K	0.17%	0	13F-HR Timeline
QTR Family Wealth, LLC	746	$724K	0.32%	+94	13F-HR Timeline
BNB Wealth Management, LLC	837	$722K	0.47%		13F-HR Timeline
Miller Financial Services LLC	837	$721K	0.85%	-32	13F-HR Timeline
DGS Capital Management, LLCin group DGS Capital Management, LLC	836	$721K	0.12%	-187	13F-HR Timeline Group
Victrix Investment Advisors	836	$721K	0.28%	+120	13F-HR Timeline
Princeton Global Asset Management LLC	835	$720K	0.12%	-65	13F-HR Timeline
Adelphi Trust Co	834	$719K	0.59%		13F-HR Timeline
Darden Wealth Group Inc	831	$717K	0.35%	-75	13F-HR Timeline
Northern Financial Advisors Inc	831	$717K	0.82%	-1,256	13F-HR Timeline
PURE PORTFOLIOS HOLDINGS LLC	831	$716K	0.22%	+13	13F-HR Timeline
M3 Advisory Group, LLC	831	$716K	0.44%	-67	13F-HR Timeline
Womack Financial LLC	830	$716K	0.53%	-7	13F-HR Timeline
Abel Hall, LLC	830	$716K	0.17%	+302	13F-HR Timeline
ASAHI LIFE ASSET MANAGEMENT CO., LTD.	829	$715K	0.4%	-341	13F-HR Timeline
Occidental Asset Management, LLC	828	$714K	0.09%	-2	13F-HR Timeline
Deseret Mutual Benefit Administrators	827	$713K	0.3%	-40	13F-HR Timeline
ENZI WEALTH	749	$713K	0.25%	-2	13F-HR Timeline
Centerpoint Advisory Group	826	$712K	0.55%	0	13F-HR Timeline
Ellevest, Inc.	826	$712K	0.1%	-6	13F-HR Timeline
Sandbox Financial Partners, LLC	826	$712K	0.2%	-722	13F-HR Timeline
Pathway Financial Advisers, LLC	824	$711K	0.21%	-20	13F-HR Timeline
Black Diamond Financial, LLC	823	$710K	0.07%	+172	13F-HR Timeline
Tamar Securities, LLC	823	$710K	0.08%	-58	13F-HR Timeline
Cadent Capital Advisors, LLC	823	$710K	0.19%	-93	13F-HR Timeline
Concorde Asset Management, LLC	823	$710K	0.28%	+207	13F-HR Timeline
Financial Advisors Network, Inc.	821	$708K	0.1%	+189	13F-HR Timeline
Pekin Hardy Strauss, Inc.	820	$707K	0.07%	-80	13F-HR Timeline
M. Kraus & Co	820	$707K	0.2%	0	13F-HR Timeline
Bigelow Investment Advisors, LLC	820	$707K	0.28%	+27	13F-HR Timeline
McMillan Office, Inc.	820	$707K	0.09%		13F-HR Timeline
Tactive Advisors, LLC	818	$706K	0.21%	-110	13F-HR Timeline
VISTA INVESTMENT PARTNERS LLC	818	$705K	0.19%	-100	13F-HR Timeline
Financial Security Advisor, Inc.	817	$705K	0.14%	-1	13F-HR Timeline
James J. Burns & Company, LLC	815	$703K	0.1%	0	13F-HR Timeline
TrinityBridge Ltd	814	$702K	0.02%	+53	13F-HR Timeline
Beta Wealth Group, Inc.	813	$701K	0.28%	0	13F-HR Timeline
STEEL GROVE CAPITAL ADVISORS, LLC	813	$701K	0.07%	+150	13F-HR Timeline
Shade Tree Advisors LLC	813	$701K	0.53%	0	13F-HR Timeline
MINDSET WEALTH MANAGEMENT, LLC	812	$700K	0.18%	-8	13F-HR Timeline
WORLD EQUITY GROUP, INC.	812	$700K	0.2%	-8,333	13F-HR Timeline
Financial Planning Hawaii, Inc.	811	$699K	0.4%		13F-HR Timeline
Capital Square, LLC	809	$698K	0.36%	-245	13F-HR Timeline
Darwin Wealth Management, LLC	808	$697K	0.22%	+16	13F-HR Timeline
Annis Gardner Whiting Capital Advisors,…	806	$695K	0.13%	+193	13F-HR Timeline
Edge Financial Advisors LLC	399	$694K	0.29%	-33	13F-HR Timeline
Riverview Trust Co	803	$692K	0.83%	+5	13F-HR Timeline
Monument Capital Management	801	$691K	0.17%	-6	13F-HR Timeline
ADVISORTRUST PARTNERS, LLC	801	$690K	0.3%		13F-HR Timeline
Carlson Capital, L.P.	800	$690K	0.33%	new	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