CIK 0000909832 · Large accelerated filer
COSTCO WHOLESALE CORP /NEW
Sign in to watch- Ticker
- COST
- Exchange
- Nasdaq
- Industry
- Retail-Variety Stores
- FY end
- Aug 30
- Incorporated
- WA
- Entity type
- operating
- EIN
- 911223280
- Phone
- 4253138100
- Business address
- 999 LAKE DRIVE, ISSAQUAH, WA, 98027-
- Former names
- COSTCO COMPANIES INC, PRICE/COSTCO INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $4,777,958
- in 4 filings
Net −$4,777,958. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-11-11 | Jones Teresa A. Executive Vice President | Sale | −900 | $1,083.95 | $976K | 5,698.27 |
| 2026-10-13 | Wilcox William Richard Executive Vice President | Sale | −1,100 | $958.21 | $1.1M | 3,094.39 |
| 2026-09-29 | Frates Caton Sr. Executive Vice President | Sale | −800.64 | $915.93 | $733K | 7,912 |
| 2026-09-29 | Adamo Claudine Executive Vice President | Sale | −2,200 | $915.93 | $2.0M | 7,133.51 |
| 2026-06-23 | DENMAN KENNETH D Director | Sale | −885 | $957.45 | $847K | 4,778.94 |
| 2026-04-01 | Frates Caton Executive Vice President | Sale | −700 | $993.00 | $695K | 5,815 |
| 2026-03-09 | Adamo Claudine Executive Vice President | Sale | −730 | $1,003.02 | $732K | 6,121.2 |
| 2026-01-21 | Jones Teresa A. Executive Vice President | Sale | −850 | $986.26 | $838K | 4,227.8 |
| 2026-01-16 | DECKER SUSAN L Director | Sale | −458 | $955.00 | $437K | 8,531.94 |
| 2026-01-14 | Klauer James C Executive Vice President | Sale | −1,500 | $939.00 | $1.4M | 44,836.99 |
| 2026-01-09 | Miller Russell D Sr. Executive Vice President | Sale | −1,500 | $916.32 | $1.4M | 8,240 |
| 2025-12-30 | POLIT JAVIER Executive Vice President | Sale | −558.31 | $862.90 | $482K | 10,189.59 |
| 2025-12-29 | POLIT JAVIER Executive Vice President | Sale | −2,049 | $867.21 | $1.8M | 10,747.9 |
| 2025-11-07 | Wilcox William Richard Executive Vice President | Sale | −2,400 | $930.13 | $2.2M | 2,000 |
| 2025-10-24 | Barbre Tiffany Marie Principal Accounting Officer | Sale | −1,239.38 | $934.62 | $1.2M | 5,155.45 |
| 2025-10-24 | Adamo Claudine Executive Vice President | Sale | −2,700 | $935.68 | $2.5M | 6,851.2 |
| 2025-09-29 | Miller Russell D Sr. Executive Vice President | Sale | −3,381 | $915.00 | $3.1M | 9,740 |
| 2025-09-29 | Frates Caton Executive Vice President | Sale | −1,540 | $910.02 | $1.4M | 9,283.69 |
| 2025-08-20 | Jones Teresa A. Executive Vice President | Sale | −600 | $992.05 | $595K | 2,362.13 |
| 2025-07-14 | Rubanenko Yoram Executive Vice President | Sale | −4,000 | $974.96 | $3.9M | 5,774.03 |
Page 1 of 19 · 368 trades