Russell D Miller 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 Russell reports to the SEC
Open-market buys and sales
11 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 9, 2026 | COST | ↓ Sell | 1,500 | $916.32 | $1.4M | Miller Family Trust | Jan 12, 2026 (3d) |
| Sep 29, 2025 | COST | ↓ Sell | 3,381 | $915.00 | $3.1M | Miller Family Trust | Oct 1, 2025 (2d) |
| Oct 11, 2024 | COST | ↓ Sell | 4,400 | $891.15 | $3.9M | Miller Family Trust | Oct 15, 2024 (4d) |
| Apr 17, 2024 | COST | ↓ Sell | 785 | $722.86 | $567K | Miller Family Trust | Apr 18, 2024 (1d) |
| Nov 3, 2023 | COST | ↓ Sell | 4,500 | $557.75 | $2.5M | Miller Family Trust | Nov 6, 2023 (3d) |
| Mar 7, 2023 | COST | ↓ Sell | 1,500 | $488.95 | $733K | Miller Family Trust | Mar 8, 2023 (1d) |
| Nov 4, 2022 | COST | ↓ Sell | 1,000 | $483.58 | $484K | Miller Family Trust | Nov 4, 2022 (0d) |
| Dec 13, 2021 | COST | ↓ Sell | 4,000 | $556.02 | $2.2M | Miller Family Trust | Dec 14, 2021 (1d) |
| Dec 14, 2020 | COST | ↓ Sell | 5,000 | $377.24 | $1.9M | Miller Family Trust | Dec 14, 2020 (0d) |
| Nov 8, 2019 | COST | ↓ Sell | 1,000 | $302.83 | $303K | Miller Family Trust | Nov 8, 2019 (0d) |
| Apr 19, 2018 | COST | ↓ Sell | 12,393 | $194.12 | $2.4M | Direct | Apr 19, 2018 (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 Russell D Miller's insider trades
Russell D Miller is Sr. Executive Vice President at Costco Wholesale Corp /New (COST). Since Apr 19, 2018, Russell has reported no open-market purchases and 11 sales worth $19.5M on SEC Form 4. In the last 12 months: 1 sale ($1.4M).
Their filings also include grants and awards (7 filings), shares withheld for taxes (7 filings), other transactions (4 filings), gifts (3 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.