Claudine Adamo insider trades: Costco Wholesale Corp /New (COST) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Claudine reports to the SEC
Open-market buys and sales
9 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 29, 2026 | COST | ↓ Sell | 2,200 | $915.93 | $2.0M | Direct | Sep 30, 2026 (1d) |
| Mar 9, 2026 | COST | ↓ Sell | 730 | $1003.02 | $732K | Direct | Mar 11, 2026 (2d) |
| Oct 24, 2025 | COST | ↓ Sell | 2,700 | $935.68 | $2.5M | Direct | Oct 24, 2025 (0d) |
| Mar 24, 2025 | COST | ↓ Sell | 900 | $922.56 | $830K | Direct | Mar 25, 2025 (1d) |
| Sep 30, 2024 | COST | ↓ Sell | 3,200 | $888.99 | $2.8M | Direct | Oct 2, 2024 (2d) |
| Mar 11, 2024 | COST | ↓ Sell | 1,500 | $714.83 | $1.1M | Direct | Mar 13, 2024 (2d) |
| Oct 23, 2023 | COST | ↓ Sell | 2,565 | $548.92 | $1.4M | Direct | Oct 24, 2023 (1d) |
| Oct 26, 2022 | COST | ↓ Sell | 2,000 | $495.97 | $992K | Direct | Oct 27, 2022 (1d) |
| Apr 8, 2022 | COST | ↓ Sell | 500 | $602.03 | $301K | Direct | Apr 8, 2022 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other COST insiders
Open-market trades in the last 12 months
About Claudine Adamo's insider trades
Claudine Adamo is Executive Vice President at Costco Wholesale Corp /New (COST). Since Apr 8, 2022, Claudine has reported no open-market purchases and 9 sales worth $12.7M on SEC Form 4. In the last 12 months: 2 sales ($2.7M).
Their filings also include shares withheld for taxes (9 filings), grants and awards (5 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every COST insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.