COST Insider Activity
View recent SEC Form 4 insider transactions for COST, including purchases, sales, option exercises, and other insider filings.
| Date | Insider | Type | Quantity | Price | Total Value | Shares Owned |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | Adamo Claudine | Sale | 2,200 | $915.93 | $2,015,046.00 | 7,133 |
| Sep 29, 2026 | Frates Caton | Sale | 800 | $915.93 | $733,328.36 | 7,912 |
| Sep 10, 2026 | Adamo Claudine | Tax Withheld | 916 | $902.38 | $827,198.21 | 9,333 |
| Sep 10, 2026 | Adamo Claudine | Grant | 4,129 | $0.00 | $0.00 | 10,250 |
| Sep 10, 2026 | Frates Caton | Tax Withheld | 1,654 | $902.38 | $1,492,864.08 | 8,712 |
| Sep 10, 2026 | Frates Caton | Grant | 4,552 | $0.00 | $0.00 | 10,367 |
| Sep 10, 2026 | Jones Teresa A. | Grant | 4,129 | $0.00 | $0.00 | 8,056 |
| Sep 10, 2026 | Jones Teresa A. | Tax Withheld | 1,458 | $902.38 | $1,316,152.81 | 6,598 |
| Sep 10, 2026 | Klauer James C | Grant | 4,129 | $0.00 | $0.00 | 48,965 |
| Sep 10, 2026 | Klauer James C | Tax Withheld | 936 | $902.38 | $844,731.45 | 48,029 |
| Sep 10, 2026 | Riel Pierre | Tax Withheld | 1,561 | $902.38 | $1,409,210.75 | 14,246 |
| Sep 10, 2026 | Riel Pierre | Grant | 4,552 | $0.00 | $0.00 | 15,807 |
| Sep 10, 2026 | Rubanenko Yoram | Tax Withheld | 1,695 | $902.38 | $1,530,393.17 | 10,680 |
| Sep 10, 2026 | Rubanenko Yoram | Grant | 4,129 | $0.00 | $0.00 | 12,376 |
| Sep 10, 2026 | Wilcox William Richard | Tax Withheld | 1,934 | $902.38 | $1,745,752.47 | 4,194 |
| Sep 10, 2026 | Wilcox William Richard | Grant | 4,129 | $0.00 | $0.00 | 6,129 |
| Jul 10, 2026 | RAIKES JEFFREY S | Gift | 5,249 | $0.00 | $0.00 | 6,043 |
| Jun 23, 2026 | DENMAN KENNETH D | Sale | 885 | $957.45 | $847,345.46 | 4,778 |
| Mar 12, 2026 | George Sarah Catherine | Sell | 642 | $991.21 | $636,482.78 | 0 |
| Mar 11, 2026 | MILLERCHIP GARY | Tax Withheld | 1,154 | $992.23 | $1,145,050.29 | 15,465 |
| Jan 27, 2026 | Jones Teresa A. | Gift | 300 | $0.00 | $0.00 | 3,927 |
| Jan 27, 2026 | RAIKES JEFFREY S | Gift | 5,115 | $0.00 | $0.00 | 11,292 |
| Jan 21, 2026 | Jones Teresa A. | Sale | 850 | $986.26 | $838,318.20 | 4,227 |
| Jan 16, 2026 | DECKER SUSAN L | Sale | 458 | $955.00 | $437,390.00 | 8,531 |
| Jan 16, 2026 | Raimondo Gina Marie | Grant | 215 | $0.00 | $0.00 | 215 |
| Jan 14, 2026 | Klauer James C | Sale | 1,500 | $939.00 | $1,408,500.00 | 44,836 |
| Jan 09, 2026 | Miller Russell D | Sale | 1,500 | $916.32 | $1,374,480.00 | 8,240 |
| Dec 30, 2025 | POLIT JAVIER | Sale | 558 | $862.90 | $481,758.59 | 10,189 |
| Dec 29, 2025 | POLIT JAVIER | Sale | 2,049 | $867.21 | $1,776,903.86 | 10,747 |
| Dec 19, 2025 | DENMAN KENNETH D | Gift | 325 | $0.00 | $0.00 | 5,663 |
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