COST COSTCO WHOLESALE CORPORATION

COM (common), issuer CIK 909832

3,879 managers (3,943 13F filers) reported a position in COST shares at 2025-09-30, 296,922,826 shares in all. 117 filers opened a position and 170 filers sold out during the quarter.

Managers: 3,879
13F filers: 3,943
New: 117
Added: 1,660
Reduced: 1,589
Sold out: 170
Shares held by filers: 296,922,826

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
VIAWEALTH, LLC	427	$395K	0.22%	+15	13F-HR Timeline
Amplius Wealth Advisors, LLC	426	$394K	0.03%	-445	13F-HR Timeline
One Wealth Map LLC	431	$394K	0.21%	+2	13F-HR Timeline
GW&K Investment Management, LLC	423	$392K	<0.01%	0	13F-HR Timeline
Seascape Capital Management	423	$392K	0.11%	+7	13F-HR Timeline
Fearless Solutions, LLC dba Best Invest	423	$392K	0.25%	0	13F-HR Timeline
Braun-Bostich & Associates Inc.	422	$391K	0.25%	-7	13F-HR Timeline
Granite Bay Wealth Management, LLC	422	$390K	0.1%	-904	13F-HR Timeline
Rather & Kittrell, Inc.	420	$389K	0.07%	+53	13F-HR Timeline
George Kaiser Family Foundation	420	$389K	0.05%	0	13F-HR Timeline
Covenant Partners, LLC	420	$389K	0.11%	0	13F-HR Timeline
Bluesphere Advisors LLC	420	$388K	0.18%	0	13F-HR Timeline
Goodman Advisory Group, LLC	419	$388K	0.1%	0	13F-HR Timeline
Northwest Capital Management Inc	415	$384K	0.4%	-160	13F-HR Timeline
Revisor Wealth Management LLC	409	$384K	0.13%	+45	13F-HR Timeline
AGH Wealth Advisors, LLC	415	$384K	0.28%	-1	13F-HR Timeline
Meridian Financial Partners LLC	419	$383K	0.16%	0	13F-HR Timeline
UNITED BANK	414	$383K	0.05%	+59	13F-HR Timeline
NCM Capital Management, LLC	413	$382K	0.15%	-3	13F-HR Timeline
Tacita Capital Inc	413	$382K	0.23%	+9	13F-HR Timeline
Nicollet Investment Management, Inc.	413	$382K	0.12%	-76	13F-HR Timeline
CATHY PARETO & ASSOCIATES, INC	412	$382K	0.29%	-3	13F-HR Timeline
STALEY CAPITAL ADVISERS INC	412	$381K	0.02%	0	13F-HR Timeline
Goldstream Capital Management Ltd	412	$381K	0.13%	0	13F-HR Timeline
Spartan Planning & Wealth Management	412	$381K	0.3%	-456	13F-HR Timeline
FSA Wealth Management LLC	411	$381K	0.14%	0	13F-HR Timeline
SP Asset Management LLC	410	$380K	0.03%	0	13F-HR Timeline
Ledgewood Wealth Advisors, LLC	410	$380K	0.22%	0	13F-HR Timeline
Thrive Capital Management, LLC	410	$379K	0.1%	-4	13F-HR Timeline
TWIN PEAKS WEALTH ADVISORS, LLC	408	$378K	0.13%	-43	13F-HR Timeline
Long Road Investment Counsel, LLC	408	$378K	0.13%	0	13F-HR Timeline
Hudson Capital Management LLC	408	$378K	0.1%	0	13F-HR Timeline
Summit Financial Consulting LLC	408	$378K	0.3%	+100	13F-HR Timeline
Triumph Capital Management	408	$377K	0.1%	+110	13F-HR/A Timeline
Cranbrook Wealth Management, LLC	407	$377K	0.08%	+275	13F-HR Timeline
Compagnie Lombard Odier SCmA	407	$377K	<0.01%	0	13F-HR Timeline
Guidance Point Advisors, LLC	404	$376K	0.09%	-2	13F-HR Timeline
Stonebridge Financial Group, LLC	406	$376K	0.03%	new	13F-HR Timeline
Virtue Capital Management, LLC	1,830	$376K	0.06%	+1,051	13F-HR/A Timeline
Gilbert & Cook, Inc.	405	$375K	0.05%	+64	13F-HR Timeline
RETIREMENT INCOME SOLUTIONS, INC	405	$375K	0.06%	+25	13F-HR Timeline
Auto-Owners Insurance Coin group Auto-Owners Insurance Co	405	$375K	0.01%	-25	13F-HR/A Timeline Group
BNP PARIBASin group BNP PARIBAS	403	$373K	0.01%	-174	13F-HR Timeline Group
4J Wealth Management LLC	402	$372K	0.22%	0	13F-HR Timeline
Providence Capital Advisors, LLC	401	$371K	0.06%	-2	13F-HR Timeline
First Citizens Financial Corp	401	$371K	0.18%	+51	13F-HR Timeline
GRACE & WHITE INC /NY	400	$370K	0.07%	0	13F-HR Timeline
Northwest Bancshares, Inc.	400	$370K	0.06%	-1	13F-HR Timeline
COHEN & STEERS, INC.in group COHEN & STEERS, INC.	400	$370K	<0.01%	0	13F-HR Timeline Group
Eldridge Investment Advisors, Inc.	399	$370K	0.08%	0	13F-HR Timeline
COUNTRY TRUST BANK	398	$368K	0.01%	+114	13F-HR Timeline
Corton Capital Inc.	398	$368K	0.91%	new	13F-HR Timeline
Family Capital Management, Inc.	398	$368K	0.18%	+69	13F-HR Timeline
Granite Group Advisors, LLC	398	$368K	0.22%	-2	13F-HR Timeline
BCGM Wealth Management, LLC	397	$368K	0.1%	new	13F-HR Timeline
Alliance Wealth Advisors, LLC /UT	397	$367K	0.09%	+103	13F-HR Timeline
PharVision Advisers, LLC	396	$367K	0.21%	+93	13F-HR Timeline
Sawyer & Company, Inc	370	$366K	0.14%	+110	13F-HR Timeline
Elgethun Capital Management	400	$366K	0.07%	+16	13F-HR Timeline
Summit Financial Strategies, Inc.	395	$366K	0.03%	+37	13F-HR Timeline
Trust Co of Kansas	394	$365K	0.17%	+34	13F-HR Timeline
RBA Wealth Management, LLC	394	$365K	0.13%	0	13F-HR Timeline
GoalVest Advisory LLC	394	$365K	0.08%	0	13F-HR Timeline
Griffith & Werner, Inc.	398	$364K	0.19%		13F-HR Timeline
Martin Capital Partners, LLC	393	$364K	0.14%	-32	13F-HR Timeline
V. M. MANNING & CO., INC.	387	$364K	0.33%	0	13F-HR Timeline
SYNTAX RESEARCH, INC.	392	$363K	0.23%	0	13F-HR Timeline
BOSTON RESEARCH & MANAGEMENT INC	390	$361K	0.08%	+100	13F-HR/A Timeline
MPS Loria Financial Planners, LLC	389	$360K	0.1%	-1	13F-HR Timeline
Wealth Dimensions Group, Ltd.	389	$360K	0.07%	-36	13F-HR Timeline
PFG Private Wealth Management, LLC	388	$360K	0.16%	+110	13F-HR Timeline
Integrity Wealth Solutions LLC	388	$360K	0.16%	-33	13F-HR Timeline
Fingerlakes Wealth Management, Inc.	388	$359K	0.23%	new	13F-HR Timeline
LifePlan Investment Advisors, Inc.	388	$359K	0.15%	+23	13F-HR Timeline
JEPPSON WEALTH MANAGEMENT, LLC	388	$359K	0.11%	+14	13F-HR Timeline
Capital Management Associates, Inc	386	$358K	0.1%	-66	13F-HR Timeline
Everest Private Wealth	386	$357K	0.23%	-13	13F-HR Timeline
Silver Lake Advisory, LLC	386	$357K	0.14%	+1	13F-HR Timeline
FAIRFIELD, BUSH & CO.	384	$356K	0.18%	+40	13F-HR Timeline
LATHROP INVESTMENT MANAGEMENT CO	384	$355K	0.07%	0	13F-HR Timeline
Fulcrum Equity Management	383	$355K	0.36%	-66	13F-HR Timeline
Caerus Investment Advisors, LLC	383	$355K	0.15%	new	13F-HR Timeline
Fourth Dimension Wealth, LLC	381	$352K	0.13%	-178	13F-HR Timeline
Capco Asset Management, LLC	380	$352K	0.08%	0	13F-HR Timeline
E Fund Management (Hong Kong) Co., Ltd.	380	$352K	0.21%	+180	13F-HR Timeline
Topsail Wealth Management, LLC	380	$352K	0.06%	-4	13F-HR Timeline
Round Rock Advisors LLC	379	$351K	0.06%	+42	13F-HR Timeline
BROGAN FINANCIAL, INC.	379	$351K	0.15%	0	13F-HR Timeline
Cedar Mountain Advisors, LLC	379	$351K	0.07%	+18	13F-HR Timeline
GK Wealth Management LLC	378	$350K	0.26%	+123	13F-HR Timeline
WNY Asset Management, LLC	378	$350K	0.03%	-2	13F-HR Timeline
DecisionMap Wealth Management, LLC	378	$350K	0.22%	-32	13F-HR Timeline
Kure Advisory, LLC	378	$350K	0.22%	-51	13F-HR Timeline
Gitterman Wealth Management, LLC	378	$350K	0.08%	-49	13F-HR Timeline
HOEY INVESTMENTS, INC	377	$349K	0.05%	-20	13F-HR Timeline
ACUTE INVESTMENT ADVISORY, LLC	377	$349K	2.93%	0	13F-HR Timeline
Vawter Financial, Ltd.	377	$349K	0.16%	new	13F-HR/A Timeline
Port Capital LLC	376	$348K	0.01%	-12	13F-HR Timeline
DENVER WEALTH MANAGEMENT, INC.	376	$348K	0.13%	-30	13F-HR Timeline
CHIRON CAPITAL MANAGEMENT, LLC	375	$347K	0.3%	-83	13F-HR Timeline
SIERRA OCEAN, LLC	375	$347K	0.29%	-218	13F-HR Timeline
Intellectus Partners, LLC	375	$347K	0.07%	+1	13F-HR Timeline
Ferguson Shapiro LLC	374	$346K	0.11%	0	13F-HR Timeline
626 Financial, LLC	374	$346K	0.15%	-7	13F-HR Timeline
Tillman Hartley LLC	374	$346K	0.09%	+80	13F-HR Timeline
Rede Wealth, LLC	374	$346K	0.27%	new	13F-HR Timeline
Eagle Bay Advisors LLC	374	$346K	0.27%	-39	13F-HR Timeline
Keeler Thomas Management LLC	373	$345K	0.14%	-4	13F-HR Timeline
PENSION & WEALTH MANAGEMENT ADVISORS, I…	370	$343K	0.11%	+48	13F-HR Timeline
Diversified Portfolios, Inc.	370	$342K	0.03%	-4	13F-HR Timeline
Stonehearth Capital Management, LLC	369	$342K	0.13%	-22	13F-HR Timeline
SUTTON PLACE INVESTORS LLC	369	$342K	0.19%	-7	13F-HR Timeline
Barnes Wealth Management Group, Inc	368	$341K	0.19%	+4	13F-HR Timeline
Lakeridge Wealth Management LLC	368	$341K	0.15%	-345	13F-HR Timeline
Rakuten Group, Inc.group of 2 filers holding	616	$340K		+334	Timeline Rakuten Securities, Inc.: 330 (0.11%) 13F-HR Rakuten Investment Management, In…: 286 (<0.01%) 13F-HR
Family Office Research LLC	367	$340K	0.15%	-20	13F-HR Timeline
TPG Financial Advisors, LLC	367	$340K	0.13%	+93	13F-HR Timeline
PUREfi Wealth, LLC	367	$340K	0.26%	0	13F-HR Timeline
Meridian Wealth Partners, LLC	367	$340K	0.05%	-23	13F-HR Timeline
HOURGLASS CAPITAL, LLC	366	$339K	0.08%	0	13F-HR Timeline
Per Stirling Capital Management, LLC.	365	$338K	0.04%	+21	13F-HR Timeline
Towercrest Capital Management	365	$337K	0.05%	+17	13F-HR Timeline
Portland Global Advisors LLC	364	$337K	0.04%	0	13F-HR Timeline
PINNEY & SCOFIELD, INC.	364	$337K	0.21%	0	13F-HR Timeline
RESTON WEALTH MANAGEMENT LLC	364	$337K	0.11%	+5	13F-HR Timeline
Harbor Group, Inc.	363	$336K	0.05%	0	13F-HR Timeline
WOODWARD DIVERSIFIED CAPITAL, LLC	363	$336K	0.16%	-3	13F-HR Timeline
LYNCH & ASSOCIATES/IN	363	$336K	0.06%	0	13F-HR Timeline
BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC	363	$336K	0.05%	-12	13F-HR Timeline
Asset Allocation Strategies LLC	363	$336K	0.07%	+78	13F-HR Timeline
Horizon Investment Services, LLC	362	$335K	0.13%	+93	13F-HR Timeline
Financial Council, LLC	362	$335K	0.15%	+13	13F-HR Timeline
WEALTHCARE CAPITAL MANAGEMENT LLC	362	$335K	0.03%	+2	13F-HR Timeline
N.E.W. Advisory Services LLC	361	$334K	0.03%	-29	13F-HR Timeline
Pegasus Asset Management, Inc.	361	$334K	0.11%	0	13F-HR/A Timeline
Ariadne Wealth Management, LP	361	$334K	0.15%	-66	13F-HR Timeline
Alliance Wealth Management Group	361	$334K	0.07%	+17	13F-HR Timeline
Sharp Wealth Advisory, LLC	360	$333K	0.18%	+40	13F-HR Timeline
OBSIDIAN CIO, LLC	359	$332K	0.04%	new	13F-HR Timeline
A&I FINANCIAL SERVICES, LLC	362	$332K	0.16%	+4	13F-HR Timeline
DDFG, Inc	358	$332K	0.08%	-5	13F-HR Timeline
Lantern Wealth Advisors, LLC	358	$331K	0.18%	new	13F-HR Timeline
DEFINE FINANCIAL, LLC	358	$331K	0.2%	+12	13F-HR Timeline
Widmann Financial Services, Inc.	357	$330K	0.21%	+22	13F-HR Timeline
GatePass Capital, LLC	356	$330K	0.19%	-13	13F-HR Timeline
Townsend & Associates, Inc	351	$329K	0.03%	-119	13F-HR Timeline
Center For Asset Management LLC	355	$329K	0.18%	+10	13F-HR Timeline
MEANS INVESTMENT CO., INC.	354	$327K	0.03%	-97	13F-HR Timeline
Seek First Inc.	353	$327K	0.24%	-5	13F-HR Timeline
Flywheel Private Wealth LLC	353	$327K	0.26%	0	13F-HR Timeline
Aspiring Ventures, LLC	353	$326K	0.12%	+12	13F-HR Timeline
Legacy Financial Strategies, LLC	350	$324K	0.06%	+84	13F-HR Timeline
HARMONY ASSET MANAGEMENT LLC	350	$324K	0.11%	-57	13F-HR Timeline
Aldebaran Financial Inc.	350	$324K	0.32%	+95	13F-HR Timeline
Chung Wu Investment Group, LLC	350	$324K	0.27%	-100	13F-HR Timeline
SCHOLTZ & COMPANY, LLC	350	$324K	0.14%	-100	13F-HR Timeline
PENOBSCOT WEALTH MANAGEMENT	349	$323K	0.1%	-14	13F-HR Timeline
LaFleur & Godfrey LLC	348	$322K	0.04%	-875	13F-HR Timeline
Latitude Advisors, LLC	348	$322K	0.15%	+1	13F-HR Timeline
LIBRA WEALTH LLC	347	$321K	0.1%	-63	13F-HR Timeline
Heck Capital Advisors, LLC	347	$321K	0.02%	+21	13F-HR Timeline
Waterfront Wealth Inc.	339	$321K	0.07%	+15	13F-HR Timeline
Jackson Hole Capital Partners, LLC	345	$319K	0.05%	-28	13F-HR Timeline
COERENTE CAPITAL MANAGEMENT	345	$319K	0.06%	-5	13F-HR Timeline
4WEALTH ADVISORS, INC.	343	$317K	0.29%	0	13F-HR Timeline
Vantage Financial Partners, LLC	343	$317K	0.07%	+1	13F-HR Timeline
Sensible Money, LLC	343	$317K	0.11%	0	13F-HR Timeline
WADDELL & ASSOCIATES, LLC	342	$317K	0.03%	-148	13F-HR Timeline
Carson Advisory Inc.	341	$316K	0.17%	+50	13F-HR Timeline
Smith Thornton Advisors LLC	341	$316K	0.17%	+26	13F-HR Timeline
Addison Advisors LLC	341	$316K	0.07%	-8	13F-HR Timeline
Stamos Capital Partners, L.P.	341	$316K	0.06%	new	13F-HR Timeline
Westend Capital Management, LLC	340	$315K	0.09%	+6	13F-HR Timeline
Parkwoods Wealth Partners, LLC	340	$315K	0.11%	+25	13F-HR Timeline
Lynx Investment Advisory	340	$315K	0.19%	-2	13F-HR Timeline
ALPINE WOODS CAPITAL INVESTORS, LLCin group ALPINE WOODS CAPITAL INVESTOR…	339	$314K	0.07%	-170	13F-HR Timeline Group
HF Advisory Group, LLC	339	$314K	0.12%	-9	13F-HR Timeline
Kondo Wealth Advisors, Inc.	338	$313K	0.13%	+8	13F-HR Timeline
Yeomans Consulting Group, Inc.	341	$313K	0.11%	-51	13F-HR Timeline
WEALTHSPAN PARTNERS, LLC	337	$312K	0.12%	-5	13F-HR Timeline
Cornerstone Capital, Inc.	337	$312K	0.03%	-65	13F-HR Timeline
Talisman Wealth Advisors LLC	335	$310K	0.26%	+10	13F-HR Timeline
COOPER/HAIMS ADVISORS, LLC	335	$310K	0.14%	+40	13F-HR Timeline
Latko Wealth Management, Ltd.	334	$310K	0.16%	-115	13F-HR Timeline
FIDELITY D & D BANCORP INC	334	$309K	0.17%	0	13F-HR Timeline
MAYPORT, LLC	334	$309K	0.07%	+8	13F-HR Timeline
Verus Financial Partners, Inc.	333	$308K	0.03%	+17	13F-HR Timeline
ProVise Management Group, LLC	333	$308K	0.02%	+53	13F-HR Timeline
Counterpoint Mutual Funds LLC	333	$308K	0.02%	new	13F-HR Timeline
Flaharty Asset Management, LLC	333	$308K	0.04%	-107	13F-HR Timeline
Smith Salley Wealth Management	332	$308K	0.02%	-60	13F-HR Timeline
FIRST FINANCIAL BANK - TRUST DIVISION	332	$307K	0.03%	0	13F-HR Timeline
Schulz Wealth, LTD.	331	$306K	0.2%	0	13F-HR Timeline
Wagner Wealth Management, LLC	330	$305K	0.07%	0	13F-HR Timeline
Strid Group, LLC	329	$305K	0.04%	0	13F-HR Timeline
C2C Wealth Management, LLC	329	$305K	0.26%	0	13F-HR Timeline
IAG Wealth Partners, LLC	328	$304K	0.04%	-47	13F-HR Timeline
Madison Park Capital Advisors, LLC	328	$304K	0.25%	-9	13F-HR Timeline
New Insight Wealth Advisors	328	$303K	0.11%	-6	13F-HR Timeline
A4 Wealth Advisors LLC	327	$303K	0.26%		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