Costco Wholesale COST Institutional Ownership

NASDAQ COST

$910.21 -0.14 (-0.01%)

As of: Oct 1, 2026 · 10:06 AM EDT

Institutions by Trading Activity

4,206 Institutions

Increased 1,919 45.6%

Unchanged 582 13.8%

Reduced 1,705 40.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

74.00%

▲+4.31 pp QoQ

Shares Held by Institutions

328.48Mn

of 443.92Mn outstanding

▲+6.69% QoQ

Shares Outstanding

443.92Mn

115.44Mn held outside 13F filers

Institutional Investors

4,206

filed 13F for Jun 2026

▼-16 vs prior quarter

Net Shares Added (QoQ)

+20.59Mn

accumulated since last quarter

Value of Holdings

$299.03Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Costco Wholesale Corp /New (NASDAQ:COST) is held by 4,205 institutional investors per 13F filings through June 2026.

Collectively, these holders controlled 74.0% of Costco Wholesale's outstanding shares in June 2026, up from 69.7% in March 2026.
Their total shares held in COST increased 6.69% quarter over quarter, and separately, investors owning Costco Wholesale increased 6.29% from a year ago.
Activity in COST broke down as 1,919 buyers, 1,704 sellers, and 582 unchanged among 4,205 total holders.
Altogether, these fund groups held 328.48Mn shares in COST by June 2026, up by 20.59Mn shares quarter on quarter, and up 34.28Mn shares year over year.
As of June 30, 2026, the biggest holder of Costco Wholesale is BlackRock, Inc. at 34.2Mn shares, representing 7.7% of shares outstanding.
Leading buyers of Costco Wholesale shares for the quarter ending June 2026 were Invesco Ltd. (9.68Mn), NORGES BANK (6.47Mn), Sixth Street Partners Management Company, L.P. (3.63Mn), Ascentis Wealth Management, LLC (2.32Mn), SG Americas Securities, LLC (955.93K).
The biggest sellers of Costco Wholesale for the quarter ending June 2026 included DIAMANT ASSET MANAGEMENT, INC. (6.72Mn), BlackRock, Inc. (744.21K), FMR LLC (555.05K), PRICE T ROWE ASSOCIATES INC /MD/ (512.52K), Amundi (414.56K).
Per Business Quant data, the top 10 holders of Costco Wholesale for the quarter ending June 2026 are BlackRock, Inc. (34.2Mn), VANGUARD CAPITAL MANAGEMENT LLC (28.98Mn), State Street Corp (18.38Mn), Invesco Ltd. (13.99Mn), GEODE CAPITAL MANAGEMENT, LLC (10.63Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (10.4Mn), Morgan Stanley (10.22Mn), Bank Of America Corp /De/ (7.25Mn), NORGES BANK (6.47Mn), FMR LLC (6.16Mn).

Form 13F Holdings

4,202 Institutional Holders

Report period 30 Jun, 2026

Total shares held 328.48Mn

Of outstanding 74.00%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	34,202,834	7.70%	▼744,206	-2.13%	$32.00Bn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	28,976,605	6.53%	▲129,157	+0.45%	$27.11Bn
3	State Street Corp	0000093751	18,384,951	4.14%	▲232,719	+1.28%	$17.20Bn
4	Invesco Ltd.	0000914208	13,989,137	3.15%	▲9,675,631	+224.31%	$13.09Bn
5	GEODE CAPITAL MANAGEMENT, LLC	0001214717	10,627,472	2.39%	▼31,752	-0.30%	$9.90Bn
6	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	10,402,555	2.34%	▼303,080	-2.83%	$9.73Bn
7	Morgan Stanley	0000895421	10,220,437	2.30%	▲321,726	+3.25%	$9.56Bn
8	Bank Of America Corp /De/	0000070858	7,249,774	1.63%	▼265,257	-3.53%	$6.78Bn
9	NORGES BANK	0001374170	6,474,767	1.46%	▲6,474,767	0.00%	$6.06Bn
10	FMR LLC	0000315066	6,163,541	1.39%	▼555,048	-8.26%	$5.77Bn
11	Northern Trust Corp	0000073124	4,835,919	1.09%	▼92,188	-1.87%	$4.52Bn
12	Royal Bank Of Canada	0001000275	4,292,111	0.97%	▲533,261	+14.19%	$4.02Bn
13	Jpmorgan Chase & Co	0000019617	4,224,191	0.95%	▲184,275	+4.56%	$4.00Bn
14	Sixth Street Partners Management Company, L.P.	0001812095	3,631,675	0.82%	▲3,631,675	0.00%	$3.40Bn
14	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	3,631,675	0.82%	▲231,372	+6.80%	$3.40Bn
15	Goldman Sachs Group Inc	0000886982	3,293,734	0.74%	▲79,925	+2.49%	$3.08Bn
16	Fisher Asset Management, LLC	0000850529	3,253,040	0.73%	▲33,184	+1.03%	$3.04Bn
17	Bank of New York Mellon Corp	0001390777	3,215,058	0.72%	▼176,566	-5.21%	$3.01Bn
18	Nuveen, LLC	0001871926	3,189,881	0.72%	▲115,824	+3.77%	$2.98Bn
19	Wells Fargo & Company/Mn	0000072971	3,106,170	0.70%	▼5,704	-0.18%	$2.91Bn

Showing 1 to 20 of 4,202 holders