Costco Wholesale Corp (COST) Ownership

895.86 ↑0.00 (0.00%)

As of December 31, 1969, 7:00pm EST.

Institutions
Mutual Funds

Institutional Ownership

OFI Invest Asset Management is the biggest individual institutional holder of Costco Wholesale Corp (COST), owning a total of 48.9 million shares. Combined, the top 32 institutional holders of COST own 65.34% of the company with a total of 289.7 million shares.

In the latest ownership report on June 30th 2025, the top 32 institutional holders decreased their combined ownership of COST by 261 thousand shares. 9 institutions bought 2,418,936 total additional shares and increased their ownership by an average of 2.43%. However 11 institutions sold 2,679,477 total shares and decreased their ownership by an average of 5.9%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of Costco Wholesale Corp decreased by a net total of -260,541 in the latest quarter.

Institution Ownership Chart

Latest Institutional Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard Group Inc	9.776%	1.669%	43,356,271	711,560	2025-06-30
BlackRock Inc	8.024%	1.866%	35,583,824	651,656	2025-06-30
State Street Corp	4.132%	0.494%	18,325,416	90,107	2025-06-30
Geode Capital Management, LLC	2.317%	1.490%	10,275,056	150,844	2025-06-30
Morgan Stanley - Brokerage Accounts	2.159%	0.604%	9,572,349	57,475	2025-06-30
FMR Inc	2.123%	-1.100%	9,414,164	-104,698	2025-06-30
Bank of America Corp	1.575%	4.069%	6,983,830	273,041	2025-06-30
NORGES BANK	1.297%	1.662%	5,749,879	93,996	2025-06-30
Northern Trust Corp	1.140%	-1.068%	5,054,552	-54,543	2025-06-30
Amvescap Plc.	0.968%	9.824%	4,291,557	383,887	2025-06-30
Capital World Investors	0.890%	-1.289%	3,948,600	-51,557	2025-06-30
Royal Bank of Canada	0.866%	0.166%	3,840,297	6,370	2025-06-30
Nuveen, LLC	0.781%	-5.381%	3,462,676	-196,905	2025-06-30
Bank of New York Mellon Corp	0.775%	-17.626%	3,435,648	-735,151	2025-06-30
JPMorgan Chase & Co	0.759%	-6.757%	3,366,123	-243,940	2025-06-30
AllianceBernstein L.P.	0.743%	-23.903%	3,296,524	-1,035,485	2025-06-30
UBS Asset Mgmt Americas Inc	0.724%	-0.567%	3,208,339	-18,281	2025-06-30
Jennison Associates LLC	0.715%	-5.612%	3,169,194	-188,436	2025-06-30
Wells Fargo & Co	0.702%	-0.943%	3,114,477	-29,657	2025-06-30
Fisher Asset Management, LLC	0.701%	-0.665%	3,110,415	-20,824	2025-06-30

Top Institutions

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
OFI Invest Asset Management	11.025%	0.000%	48,855,736	48,855,736	2023-03-31
Vanguard Group Inc	9.776%	1.669%	43,356,271	711,560	2025-06-30
BlackRock Inc	8.024%	1.866%	35,583,824	651,656	2025-06-30
State Street Corporation	4.177%	-0.761%	18,519,304	-141,933	2024-03-31
State Street Corp	4.132%	0.494%	18,325,416	90,107	2025-06-30
Geode Capital Management, LLC	2.317%	1.490%	10,275,056	150,844	2025-06-30
Morgan Stanley - Brokerage Accounts	2.159%	0.604%	9,572,349	57,475	2025-06-30
FMR Inc	2.123%	-1.100%	9,414,164	-104,698	2025-06-30
GAMMA Investing LLC	1.839%	106,402.000%	8,160,190	8,152,528	2025-03-31
International Assets Investment Management, LLC	1.661%	113,948.000%	7,370,916	7,364,453	2024-09-30
Bank of America Corp	1.575%	4.069%	6,983,830	273,041	2025-06-30
NORGES BANK	1.297%	1.662%	5,749,879	93,996	2025-06-30
Northern Trust Corp	1.140%	-1.068%	5,054,552	-54,543	2025-06-30
Amvescap Plc.	0.968%	9.824%	4,291,557	383,887	2025-06-30
Capital World Investors	0.890%	-1.289%	3,948,600	-51,557	2025-06-30
Royal Bank of Canada	0.866%	0.166%	3,840,297	6,370	2025-06-30
Nuveen Asset Management, LLC	0.790%	-0.459%	3,503,384	-16,148	2024-12-31
Nuveen, LLC	0.781%	-5.381%	3,462,676	-196,905	2025-06-30
Bank of New York Mellon Corp	0.775%	-17.626%	3,435,648	-735,151	2025-06-30
Legal & General Group PLC	0.769%	-6.462%	3,414,658	-235,904	2024-09-30
Legal & General Group PLC USD	0.769%	-6.462%	3,414,658	-235,904	2024-09-30
JPMorgan Chase & Co	0.759%	-6.757%	3,366,123	-243,940	2025-06-30
AllianceBernstein L.P.	0.743%	-23.903%	3,296,524	-1,035,485	2025-06-30
UBS Asset Mgmt Americas Inc	0.724%	-0.567%	3,208,339	-18,281	2025-06-30
Goldman Sachs Group Inc	0.718%	-8.640%	3,186,490	-301,336	2024-12-31
Jennison Associates LLC	0.715%	-5.612%	3,169,194	-188,436	2025-06-30
Wells Fargo & Co	0.702%	-0.943%	3,114,477	-29,657	2025-06-30
Fisher Asset Management, LLC	0.701%	-0.665%	3,110,415	-20,824	2025-06-30
Charles Schwab Investment Management Inc	0.681%	4.093%	3,018,594	118,690	2025-03-31
UBS Group AG	0.648%	5.631%	2,872,311	153,122	2023-12-31
Wellington Management Company LLP	0.608%	0.911%	2,689,514	24,274	2023-09-30
Bank of Montreal	0.489%	39.316%	2,163,184	610,466	2022-06-30

Mutual Fund Ownership

Vanguard US Total Market Shares ETF is the biggest individual fund holder of Costco Wholesale Corp (COST), owning a total of 14 million shares. Combined, the top 36 mutual fund holders of COST own 32.18% of the company with a total of 142.7 million shares.

In the latest ownership report on August 31st 2025, the top 36 fund holders increased their combined ownership of COST by 53 thousand shares. 2 funds bought 71,815 total additional shares and increased their ownership by an average of 0.80%. However 2 funds sold 18,614 total shares and decreased their ownership by an average of 0.62%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Costco Wholesale Corp increased by a net total of 53,201 in the latest report.

Mutual Funds Chart

Latest Mutual Fund Ownership Changes

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
SPDR® S&P 500® ETF	1.209%	1.248%	5,359,234	66,033	2025-08-31
iShares Core S&P 500 ETF	1.204%	0.000%	5,339,055	0	2025-08-31
State St S&P 500® Indx SL Cl III	0.534%	-0.151%	2,368,323	-3,578	2025-08-31
iShares Russell 1000 Growth ETF	0.377%	0.000%	1,670,713	0	2025-08-31
The Consumer Staples Sel SectSPDR® ETF	0.365%	0.359%	1,616,926	5,782	2025-08-31
Russell 1000 Index Fund	0.309%	-1.085%	1,370,634	-15,036	2025-08-31

Top Mutual Funds

Owner	Percent Owned	Percent Change	Shares Owned	Share Change	Date Reported
Vanguard US Total Market Shares ETF	3.165%	-0.011%	14,045,029	-1,512	2024-09-30
Vanguard Total Stock Mkt Idx Inv	3.143%	-2.266%	13,940,417	-323,235	2025-07-31
Vanguard Instl Ttl Stck Mkt Idx Tr	3.103%	2.066%	13,738,327	278,092	2023-03-31
Vanguard 500 Index Investor	2.477%	-12.777%	10,982,789	-1,608,892	2025-07-31
Invesco QQQ Trust	2.062%	0.699%	9,144,910	63,457	2025-08-29
Fidelity 500 Index	1.268%	0.043%	5,624,131	2,416	2025-07-31
SPDR® S&P 500 ETF	1.244%	-1.293%	5,521,617	-72,336	2025-03-31
SPDR® S&P 500® ETF Trust	1.212%	-0.522%	5,375,196	-28,188	2025-03-31
SPDR® S&P 500® ETF	1.209%	1.248%	5,359,234	66,033	2025-08-31
iShares Core S&P 500 ETF	1.204%	0.000%	5,339,055	0	2025-08-31
SPDR® S&P 500 ETF Trust	1.196%	0.699%	5,304,204	36,820	2024-05-30
Fidelity® 500 Index	1.164%	0.641%	5,163,919	32,862	2023-11-30
Vanguard Growth Index Investor	1.038%	0.375%	4,603,076	17,188	2025-07-31
Vanguard Institutional Index I	0.605%	-1.100%	2,682,240	-29,841	2025-07-31
Consumer Staples Select Sector SPDR® ETF	0.580%	0.252%	2,571,543	6,460	2024-05-30
Vanguard Dividend Appreciation ETF	0.537%	0.195%	2,379,514	4,624	2025-07-31
State St S&P 500® Indx SL Cl III	0.534%	-0.151%	2,368,323	-3,578	2025-08-31
Fidelity® Contrafund®	0.491%	0.000%	2,177,181	0	2023-11-30
Vanguard Institutional 500 Index Trust	0.382%	0.000%	1,694,211	1,694,211	2025-07-31
Blackrock Eq Idx Fund CF	0.378%	0.808%	1,676,891	13,438	2025-06-30
iShares Russell 1000 Growth ETF	0.377%	0.000%	1,670,713	0	2025-08-31
Capital Group Growth Fnd of Amer Comp	0.369%	3.447%	1,637,745	54,578	2025-06-30
American Funds Growth Fund of Amer A	0.369%	3.447%	1,637,745	54,578	2025-06-30
The Consumer Staples Sel SectSPDR® ETF	0.365%	0.359%	1,616,926	5,782	2025-08-31
Fidelity Contrafund	0.360%	-16.413%	1,595,202	-313,239	2025-07-31
Blackrock Equity Index Non-Lendable	0.347%	0.000%	1,539,395	1,539,395	2022-06-30
Invesco NASDAQ 100 ETF	0.331%	0.016%	1,468,159	236	2025-08-29
iShares MSCI USA Quality Factor ETF	0.318%	0.361%	1,408,369	5,060	2024-10-31
Blackrock Russ 1000 Eq Idx Composite	0.314%	-4.489%	1,390,510	-65,353	2025-06-30
Vanguard Dividend Growth Inv	0.313%	-27.747%	1,385,593	-532,104	2024-03-31
Russell 1000 Index Fund	0.309%	-1.085%	1,370,634	-15,036	2025-08-31
Capital Group New Perspective Comp	0.307%	-1.395%	1,359,589	-19,227	2025-06-30
American Funds New Perspective A	0.307%	-1.395%	1,359,589	-19,227	2025-06-30
AllianceBernstein US L/C Growth Eqty MF	0.269%	0.000%	1,194,406	0	2024-11-29
CREF Growth R1	0.268%	0.000%	1,186,739	0	2024-07-31
Vanguard Consumer Staples ETF	0.265%	0.579%	1,177,425	6,772	2024-10-31