Insider Trades
SEC Form 4 filings — transactions by corporate insiders.
156 total trades for COST
| Ticker | Insider | Type | Date | Shares | Value | Filing |
|---|---|---|---|---|---|---|
| COST | Kenneth D Denman | Sale | 2026-06-23 | 885 | $847K | SEC ↗ |
| COST | Caton Frates | Sale | 2026-04-01 | 700 | $695K | SEC ↗ |
| COST | Sarah Catherine George | Discretionary | 2026-03-12 | 642.125 | $636K | SEC ↗ |
| COST | Gary Millerchip | Tax Withhold | 2026-03-11 | 1,154.017 | $1.1M | SEC ↗ |
| COST | Claudine Adamo | Sale | 2026-03-09 | 730 | $732K | SEC ↗ |
| COST | Teresa A. Jones | Gift | 2026-01-27 | 300 | $0 | SEC ↗ |
| COST | Jeffrey S Raikes | Gift | 2026-01-27 | 5,115 | $0 | SEC ↗ |
| COST | Teresa A. Jones | Sale | 2026-01-21 | 850 | $838K | SEC ↗ |
| COST | Gina Marie Raimondo | Grant | 2026-01-16 | 215 | $0 | SEC ↗ |
| COST | Susan L Decker | Sale | 2026-01-16 | 458 | $437K | SEC ↗ |
| COST | James C Klauer | Sale | 2026-01-14 | 1,500 | $1.4M | SEC ↗ |
| COST | Russell D Miller | Sale | 2026-01-09 | 1,500 | $1.4M | SEC ↗ |
| COST | Javier Polit | Sale | 2025-12-30 | 558.305 | $482K | SEC ↗ |
| COST | Javier Polit | Sale | 2025-12-29 | 2,049 | $1.8M | SEC ↗ |
| COST | Kenneth D Denman | Gift | 2025-12-19 | 325 | $0 | SEC ↗ |
| COST | Susan L Decker | Gift | 2025-12-15 | 2,827 | $0 | SEC ↗ |
| COST | Jeffrey S Raikes | Gift | 2025-11-10 | 4,120 | $0 | SEC ↗ |
| COST | William Richard Wilcox | Sale | 2025-11-07 | 2,400 | $2.2M | SEC ↗ |
| COST | Claudine Adamo | Sale | 2025-10-24 | 2,700 | $2.5M | SEC ↗ |
| COST | Tiffany Marie Barbre | Sale | 2025-10-24 | 1,239.383 | $1.2M | SEC ↗ |
| COST | Susan L Decker | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Kenneth D Denman | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Helena Foulkes | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Hamilton E James | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Sarah Mr Sally Jewell | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Jeffrey S Raikes | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Mary Agnes Wilderotter | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | John W Stanton | Grant | 2025-10-22 | 286 | $0 | SEC ↗ |
| COST | Claudine Adamo | Tax Withhold | 2025-10-22 | 704.64 | $666K | SEC ↗ |
| COST | Patrick J Callans | Tax Withhold | 2025-10-22 | 916.95 | $866K | SEC ↗ |
| COST | Caton Frates | Tax Withhold | 2025-10-22 | 2,768.69 | $2.6M | SEC ↗ |
| COST | James C Klauer | Tax Withhold | 2025-10-22 | 917.35 | $867K | SEC ↗ |
| COST | Gary Millerchip | Tax Withhold | 2025-10-22 | 813.37 | $768K | SEC ↗ |
| COST | Gary Millerchip | Grant | 2025-10-22 | 6,268 | $0 | SEC ↗ |
| COST | Javier Polit | Tax Withhold | 2025-10-22 | 1,168.28 | $1.1M | SEC ↗ |
| COST | Javier Polit | Grant | 2025-10-22 | 4,219 | $0 | SEC ↗ |
| COST | John Christopher Sullivan | Tax Withhold | 2025-10-22 | 2,513.54 | $2.4M | SEC ↗ |
| COST | John Christopher Sullivan | Grant | 2025-10-22 | 4,654 | $0 | SEC ↗ |
| COST | Roland Michael Vachris | Tax Withhold | 2025-10-22 | 2,652.8 | $2.5M | SEC ↗ |
| COST | Roland Michael Vachris | Grant | 2025-10-22 | 13,834 | $0 | SEC ↗ |
| COST | Tiffany Marie Barbre | Tax Withhold | 2025-10-22 | 542.32 | $512K | SEC ↗ |
| COST | Tiffany Marie Barbre | Grant | 2025-10-22 | 2,118 | $0 | SEC ↗ |
| COST | Russell D Miller | Sale | 2025-09-29 | 3,381 | $3.1M | SEC ↗ |
| COST | Caton Frates | Sale | 2025-09-29 | 1,540 | $1.4M | SEC ↗ |
| COST | Russell D Miller | Gift | 2025-09-23 | 5,836 | — | SEC ↗ |
| COST | Claudine Adamo | Tax Withhold | 2025-09-10 | 949.666 | $908K | SEC ↗ |
| COST | Claudine Adamo | Grant | 2025-09-10 | 4,219 | $0 | SEC ↗ |
| COST | Patrick J Callans | Tax Withhold | 2025-09-10 | 949.666 | $908K | SEC ↗ |
| COST | Patrick J Callans | Grant | 2025-09-10 | 4,219 | $0 | SEC ↗ |
| COST | Caton Frates | Tax Withhold | 2025-09-10 | 1,271.078 | $1.2M | SEC ↗ |
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