Costco Wholesale Corporation (COST)
Nasdaq: COST · Retail-Variety Stores · Issaquah, WA · filing with the SEC since 1994
Grade5.5
◀ Past 6.3● Present 5.4▶ Future 4.8
Who owns Costco Wholesale Corporation
As filed with the SECHolders of 5% or more
1
Vanguard Capital Management holds 7.49% of Common Stock, as its SCHEDULE 13G filed Apr 29, 2026 says.
Directors and officers
24
report now, of 41 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%
What COST reports owning in othersstakes of 5% or more, and other ties
11 subsidiaries in 7 countries, from the list filed with the 10-K filed Oct 7, 2026.
Insider tradesForm 4
13sales
0purchases
0sales on a scheduled plan
9people selling
$13.4Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window9 of 44 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Adamo Claudine | Executive Vice President | 2 | $2.7M | 0 | 0 | $0 |
| Polit Javier | Executive Vice President | 2 | $2.3M | 0 | 0 | $0 |
| Jones Teresa A. | Executive Vice President | 2 | $1.8M | 0 | 0 | $0 |
| Klauer James C | Executive Vice President | 1 | $1.4M | 0 | 0 | $0 |
| Frates Caton | Sr. Executive Vice President | 2 | $1.4M | 0 | 0 | $0 |
| Miller Russell D | Sr. Executive Vice President | 1 | $1.4M | 0 | 0 | $0 |
| Wilcox William Richard | Executive Vice President | 1 | $1.1M | 0 | 0 | $0 |
| Denman Kenneth D | director | 1 | $800,000 | 0 | 0 | $0 |
| Decker Susan L | director | 1 | $400,000 | 0 | 0 | $0 |