Wilcox William Richard
SaleExecutive Vice President
- Shares
- 1,100
- Price
- $958.21
- Value
- $1.05M
- Date
- Oct 13, 2026
SEC FORM 4
COSTCO WHOLESALE CORP /NEW (COST) insider transactions
Recent insider purchases and sales reported on SEC Form 4, with transaction date, insider, role, shares, price and a direct SEC source for every row.
Last updated: 10/15/2026, 09:35 AM UTCAll COST stock data
- Recent transactions
- 5
- Insiders
- 4
- Purchases / sales
- 0 / 5
- Reported transaction value
- $5.34M
SEC Form 4 transactions
Newest filings first| Date | Insider / role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | Wilcox William Richard Executive Vice President | Sale | 1,100 | $958.21 | $1.05M | SEC ↗ |
| Sep 29, 2026 | Adamo Claudine Executive Vice President | Sale | 2,200 | $915.93 | $2.02M | SEC ↗ |
| Sep 29, 2026 | Frates Caton Sr. Executive Vice President | Sale | 800.64 | $915.93 | $733.33K | SEC ↗ |
| Jun 23, 2026 | DENMAN KENNETH D 이사 | Sale | 885 | $957.45 | $847.35K | SEC ↗ |
| Apr 01, 2026 | Frates Caton Executive Vice President | Sale | 700 | $993.00 | $695.1K | SEC ↗ |
Adamo Claudine
SaleExecutive Vice President
- Shares
- 2,200
- Price
- $915.93
- Value
- $2.02M
- Date
- Sep 29, 2026
Frates Caton
SaleSr. Executive Vice President
- Shares
- 800.64
- Price
- $915.93
- Value
- $733.33K
- Date
- Sep 29, 2026
Sale
- Shares
- 885
- Price
- $957.45
- Value
- $847.35K
- Date
- Jun 23, 2026
Frates Caton
SaleExecutive Vice President
- Shares
- 700
- Price
- $993.00
- Value
- $695.1K
- Date
- Apr 01, 2026
How to read this dataset
Only transactions explicitly classified as purchase (P) or sale (S) are shown. A filing does not guarantee the insider's outlook or future investment performance.