COST Costco
Nasdaq · SEC CIK 909832 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $19.00M 13 sales by 10 insiders
- Filings on record
- 267 since 2021-07-12, latest 2026-09-14 17:30
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Miller Russell D | Sr. EVP | — | $4.47M |
| Adamo Claudine | EVP | — | $3.26M |
| POLIT JAVIER | EVP | — | $2.26M |
| Wilcox William Richard | EVP | — | $2.23M |
| Frates Caton | EVP | — | $2.10M |
| Klauer James C | EVP | — | $1.41M |
| Barbre Tiffany Marie | Principal Accounting Off | — | $1.16M |
| DENMAN KENNETH D | Dir | — | $847.3K |
| Jones Teresa A. | EVP | — | $838.3K |
| DECKER SUSAN L | Dir | — | $437.4K |
Transactions 356
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-14 17:30 | 2026-09-10 | COST | Wilcox William Richard | EVP | A - Grant | $0.00 | +4,129 | 6,129 | +206% | $0 | |
| 2026-09-14 17:30 | 2026-09-10 | COST | Wilcox William Richard | EVP | F - Tax | $902.38 | -1,935 | 4,194 | -32% | -$1.75M | |
| 2026-09-14 17:28 | 2026-09-10 | COST | Rubanenko Yoram | EVP | A - Grant | $0.00 | +4,129 | 12.4K | +50% | $0 | |
| 2026-09-14 17:28 | 2026-09-10 | COST | Rubanenko Yoram | EVP | F - Tax | $902.38 | -1,696 | 10.7K | -14% | -$1.53M | |
| 2026-09-14 17:25 | 2026-09-10 | COST | Riel Pierre | EVP | A - Grant | $0.00 | +4,552 | 15.8K | +40% | $0 | |
| 2026-09-14 17:25 | 2026-09-10 | COST | Riel Pierre | EVP | F - Tax | $902.38 | -1,562 | 14.2K | -10% | -$1.41M | |
| 2026-09-14 17:23 | 2026-09-10 | COST | Klauer James C | EVP | A - Grant | $0.00 | +4,129 | 49.0K | +9% | $0 | |
| 2026-09-14 17:23 | 2026-09-10 | COST | Klauer James C | EVP | F - Tax | $902.38 | -936.12 | 48.0K | -2% | -$844.7K | |
| 2026-09-14 17:22 | 2026-09-10 | COST | Jones Teresa A. | EVP | A - Grant | $0.00 | +4,129 | 8,057 | +105% | $0 | |
| 2026-09-14 17:22 | 2026-09-10 | COST | Jones Teresa A. | EVP | F - Tax | $902.38 | -1,459 | 6,598 | -18% | -$1.32M | |
| 2026-09-14 17:20 | 2026-09-10 | COST | Frates Caton | EVP | A - Grant | $0.00 | +4,552 | 10.4K | +78% | $0 | |
| 2026-09-14 17:20 | 2026-09-10 | COST | Frates Caton | EVP | F - Tax | $902.38 | -1,654 | 8,713 | -16% | -$1.49M | |
| 2026-09-14 17:17 | 2026-09-10 | COST | Adamo Claudine | EVP | A - Grant | $0.00 | +4,129 | 10.3K | +67% | $0 | |
| 2026-09-14 17:17 | 2026-09-10 | COST | Adamo Claudine | EVP | F - Tax | $902.38 | -916.68 | 9,334 | -9% | -$827.2K | |
| 2026-07-14 16:14 | 2026-07-10 | COST | RAIKES JEFFREY S | Dir | G - Gift | $0.00 | -5,249 | 6,044 | -46% | $0 | |
| 2026-06-25 16:12 | 2026-06-23 | COST | DENMAN KENNETH D | Dir | S - Sale | $957.45 | -885 | 4,779 | -16% | -$847.3K | |
| 2026-04-01 18:13 | 2026-04-01 | COST | Frates Caton | EVP | S - Sale | $993.00 | -700 | 5,815 | -11% | -$695.1K | |
| I | 2026-03-13 | 2026-03-12 | COST | George Sarah Catherine | EVP | I - Discretionary | $991.21 | -642.13 | 0 | -100% | -$636.5K |
| 2026-03-13 | 2026-03-11 | COST | MILLERCHIP GARY | EVP | F - Tax | $992.23 | -1,154 | 15.5K | -7% | -$1.15M | |
| 2026-03-11 | 2026-03-09 | COST | Adamo Claudine | EVP | S - Sale | $1,003.02 | -730 | 6,121 | -11% | -$732.2K | |
| 2026-01-28 | 2026-01-27 | COST | RAIKES JEFFREY S | Dir | G - Gift | $0.00 | -5,115 | 11.3K | -31% | $0 | |
| 2026-01-28 | 2026-01-27 | COST | Jones Teresa A. | EVP | G - Gift | $0.00 | -300 | 3,928 | -7% | $0 | |
| 2026-01-23 | 2026-01-21 | COST | Jones Teresa A. | EVP | S - Sale | $986.26 | -850 | 4,228 | -17% | -$838.3K | |
| 2026-01-20 | 2026-01-16 | COST | Raimondo Gina Marie | Dir | A - Grant | $0.00 | +215 | 215 | New | $0 | |
| 2026-01-20 | 2026-01-16 | COST | DECKER SUSAN L | Dir | S - Sale | $955.00 | -458 | 8,532 | -5% | -$437.4K | |
| 2026-01-15 | 2026-01-14 | COST | Klauer James C | EVP | S - Sale | $939.00 | -1,500 | 44.8K | -3% | -$1.41M | |
| I | 2026-01-12 | 2026-01-09 | COST | Miller Russell D | Sr. EVP | S - Sale | $916.32 | -1,500 | 8,240 | -15% | -$1.37M |
| M | 2025-12-31 | 2025-12-29+ | COST | POLIT JAVIER | EVP | S - Sale | $866.29 | -2,607 | 10.2K | -20% | -$2.26M |
| 2025-12-22 | 2025-12-19 | COST | DENMAN KENNETH D | Dir | G - Gift | $0.00 | -325 | 5,664 | -5% | $0 | |
| 2025-12-17 | 2025-12-15 | COST | DECKER SUSAN L | Dir | G - Gift | $0.00 | -2,827 | 8,990 | -24% | $0 | |
| 2025-11-12 | 2025-11-10 | COST | RAIKES JEFFREY S | Dir | G - Gift | $0.00 | -4,120 | 16.4K | -20% | $0 | |
| 2025-11-12 | 2025-11-07 | COST | Wilcox William Richard | EVP | S - Sale | $930.13 | -2,400 | 2,000 | -55% | -$2.23M | |
| M | 2025-10-24 | 2025-10-22 | COST | Adamo Claudine | EVP | F - Tax | $944.68 | -704.64 | 9,838 | -7% | -$665.7K |
| 2025-10-24 | 2025-10-24 | COST | Adamo Claudine | EVP | S - Sale | $935.68 | -2,700 | 6,851 | -28% | -$2.53M | |
| 2025-10-24 | 2025-10-22 | COST | Barbre Tiffany Marie | Principal Accounting Off | A - Grant | $0.00 | +2,118 | 6,937 | +44% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | Barbre Tiffany Marie | Principal Accounting Off | F - Tax | $944.68 | -542.32 | 6,615 | -8% | -$512.3K |
| 2025-10-24 | 2025-10-24 | COST | Barbre Tiffany Marie | Principal Accounting Off | S - Sale | $934.62 | -1,239 | 5,155 | -19% | -$1.16M | |
| 2025-10-24 | 2025-10-22 | COST | JEWELL SARAH MR SALLY | Dir | A - Grant | $0.00 | +286 | 3,613 | +9% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | DECKER SUSAN L | Dir | A - Grant | $0.00 | +286 | 11.8K | +2% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | RAIKES JEFFREY S | Dir | A - Grant | $0.00 | +286 | 20.5K | +1% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | JAMES HAMILTON E | Dir | A - Grant | $0.00 | +286 | 55.5K | +0.5% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | Vachris Roland Michael | Pres, CEO, Dir | A - Grant | $0.00 | +13.8K | 54.9K | +34% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | Vachris Roland Michael | Pres, CEO, Dir | F - Tax | $944.68 | -2,653 | 53.4K | -5% | -$2.51M |
| 2025-10-24 | 2025-10-22 | COST | Foulkes Helena | Dir | A - Grant | $0.00 | +286 | 1,087 | +36% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | MILLERCHIP GARY | EVP | A - Grant | $0.00 | +6,268 | 17.4K | +56% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | MILLERCHIP GARY | EVP | F - Tax | $944.68 | -813.37 | 17.1K | -5% | -$768.4K |
| 2025-10-24 | 2025-10-22 | COST | Wilderotter Mary Agnes | Dir | A - Grant | $0.00 | +286 | 3,205 | +10% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | Frates Caton | EVP | F - Tax | $944.68 | -2,769 | 9,128 | -23% | -$2.62M |
| M | 2025-10-24 | 2025-10-22 | COST | Callans Patrick J | EVP | F - Tax | $944.68 | -916.95 | 61.2K | -1% | -$866.2K |
| 2025-10-24 | 2025-10-22 | COST | DENMAN KENNETH D | Dir | A - Grant | $0.00 | +286 | 5,989 | +5% | $0 | |
| 2025-10-24 | 2025-10-22 | COST | POLIT JAVIER | EVP | A - Grant | $0.00 | +4,219 | 14.0K | +43% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | POLIT JAVIER | EVP | F - Tax | $944.68 | -1,168 | 13.4K | -8% | -$1.10M |
| 2025-10-24 | 2025-10-22 | COST | STANTON JOHN W | Dir | A - Grant | $0.00 | +286 | 24.1K | +1% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | Klauer James C | EVP | F - Tax | $944.68 | -917.35 | 46.6K | -2% | -$866.6K |
| 2025-10-24 | 2025-10-22 | COST | Sullivan John Christopher | Executive VP | A - Grant | $0.00 | +4,654 | 50.2K | +10% | $0 | |
| M | 2025-10-24 | 2025-10-22 | COST | Sullivan John Christopher | Executive VP | F - Tax | $944.68 | -2,514 | 49.2K | -5% | -$2.37M |
| I | 2025-10-01 | 2025-09-29 | COST | Miller Russell D | Sr. EVP | S - Sale | $915.00 | -3,381 | 9,740 | -26% | -$3.09M |
| 2025-09-30 | 2025-09-29 | COST | Frates Caton | EVP | S - Sale | $910.02 | -1,540 | 9,284 | -14% | -$1.40M | |
| 2025-09-24 | 2025-09-23 | COST | Miller Russell D | Sr. EVP | G - Gift | $0.00 | -2,918 | 1.93 | -100% | $0 | |
| I | 2025-09-24 | 2025-09-23 | COST | Miller Russell D | Sr. EVP | G - Gift | $0.00 | +2,918 | 13.1K | +29% | $0 |
| 2025-09-12 | 2025-09-10 | COST | Riel Pierre | EVP | F - Tax | $956.29 | -1,608 | 11.3K | -13% | -$1.54M | |
| 2025-09-12 | 2025-09-10 | COST | Riel Pierre | EVP | A - Grant | $0.00 | +4,654 | 12.9K | +57% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Klauer James C | EVP | A - Grant | $0.00 | +4,219 | 48.2K | +10% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Klauer James C | EVP | F - Tax | $956.29 | -958.29 | 47.3K | -2% | -$916.4K | |
| 2025-09-12 | 2025-09-10 | COST | Adamo Claudine | EVP | F - Tax | $956.29 | -949.67 | 10.3K | -8% | -$908.2K | |
| 2025-09-12 | 2025-09-10 | COST | Adamo Claudine | EVP | A - Grant | $0.00 | +4,219 | 11.2K | +60% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Jones Teresa A. | EVP | A - Grant | $0.00 | +4,219 | 6,581 | +179% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Jones Teresa A. | EVP | F - Tax | $956.29 | -1,503 | 5,078 | -23% | -$1.44M | |
| 2025-09-12 | 2025-09-10 | COST | Rubanenko Yoram | EVP | A - Grant | $0.00 | +4,219 | 9,993 | +73% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Rubanenko Yoram | EVP | F - Tax | $956.29 | -1,746 | 8,247 | -17% | -$1.67M | |
| 2025-09-12 | 2025-09-10 | COST | Miller Russell D | Sr. EVP | F - Tax | $956.29 | -1,735 | 2,920 | -37% | -$1.66M | |
| 2025-09-12 | 2025-09-10 | COST | Miller Russell D | Sr. EVP | A - Grant | $0.00 | +4,654 | 4,655 | +460,792% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Frates Caton | EVP | F - Tax | $956.29 | -1,271 | 10.8K | -11% | -$1.22M | |
| 2025-09-12 | 2025-09-10 | COST | Frates Caton | EVP | A - Grant | $0.00 | +4,219 | 12.1K | +54% | $0 | |
| 2025-09-12 | 2025-09-10 | COST | Callans Patrick J | EVP | F - Tax | $956.29 | -949.67 | 61.8K | -2% | -$908.2K | |
| 2025-09-12 | 2025-09-10 | COST | Callans Patrick J | EVP | A - Grant | $0.00 | +4,219 | 62.8K | +7% | $0 | |
| MI | 2025-09-04 | 2025-09-02 | COST | STANTON JOHN W | Dir | G - Gift | $0.00 | 0 | 211 | New | $0 |
| 2025-08-22 | 2025-08-20 | COST | Jones Teresa A. | EVP | S - Sale | $992.05 | -600 | 2,362 | -20% | -$595.2K | |
| 2025-07-15 | 2025-07-14 | COST | RAIKES JEFFREY S | Dir | G - Gift | $0.00 | -6,573 | 20.2K | -25% | $0 | |
| 2025-07-15 | 2025-07-14 | COST | Rubanenko Yoram | EVP | S - Sale | $974.96 | -4,000 | 5,774 | -41% | -$3.90M | |
| M | 2025-06-20 | 2025-06-18 | COST | DECKER SUSAN L | Dir | S - Sale | $980.00 | -547 | 11.5K | -5% | -$536.1K |
| 2025-06-10 | 2025-06-09 | COST | Callans Patrick J | EVP | S - Sale | $1,002.77 | -3,000 | 58.5K | -5% | -$3.01M | |
| 2025-06-09 | 2025-06-06 | COST | Riel Pierre | EVP | S - Sale | $1,014.15 | -2,000 | 8,210 | -20% | -$2.03M | |
| 2025-04-21 | 2025-04-17 | COST | Klauer James C | EVP | S - Sale | $981.07 | -4,000 | 44.0K | -8% | -$3.92M | |
| I | 2025-04-21 | 2023-07-20 | COST | Klauer James C | EVP | W - Inherited | $0.00 | +98.50 | 98.50 | New | $0 |
| 2025-03-27 | 2025-03-27 | COST | MILLERCHIP GARY | EVP | S - Sale | $940.01 | -1,100 | 11.2K | -9% | -$1.03M | |
| 2025-03-25 | 2025-03-24 | COST | Adamo Claudine | EVP | S - Sale | $922.56 | -900 | 6,986 | -11% | -$830.3K | |
| 2025-03-20 | 2025-03-18 | COST | Frates Caton | EVP | S - Sale | $900.25 | -850 | 7,876 | -10% | -$765.2K | |
| 2025-03-13 | 2025-03-11 | COST | Vachris Roland Michael | Pres, CEO, Dir | S - Sale | $931.00 | -3,600 | 41.1K | -8% | -$3.35M | |
| 2025-03-13 | 2025-03-11 | COST | MILLERCHIP GARY | EVP | F - Tax | $930.49 | -1,147 | 12.3K | -9% | -$1.07M | |
| 2024-12-23 | 2024-12-19 | COST | JELINEK W CRAIG | Dir | G - Gift | $0.00 | -2,017 | 204.4K | -1.0% | $0 | |
| 2024-12-18 | 2024-12-16 | COST | DENMAN KENNETH D | Dir | G - Gift | $0.00 | -520 | 5,703 | -8% | $0 | |
| 2024-12-18 | 2024-12-16 | COST | RAIKES JEFFREY S | Dir | G - Gift | $0.00 | -3,969 | 26.8K | -13% | $0 | |
| 2024-10-24 | 2024-10-22 | COST | MILLERCHIP GARY | EVP | A - Grant | $0.00 | +3,922 | 13.7K | +40% | $0 | |
| 2024-10-24 | 2024-10-22 | COST | MILLERCHIP GARY | EVP | F - Tax | $893.49 | -313.05 | 13.4K | -2% | -$279.7K | |
| 2024-10-24 | 2024-10-22 | COST | Foulkes Helena | Dir | A - Grant | $0.00 | +303 | 800.80 | +61% | $0 | |
| M | 2024-10-24 | 2024-10-22 | COST | Adamo Claudine | EVP | F - Tax | $893.49 | -743.09 | 8,063 | -8% | -$663.9K |
| M | 2024-10-24 | 2024-10-22 | COST | Klauer James C | EVP | F - Tax | $893.49 | -1,097 | 48.0K | -2% | -$980.3K |
| M | 2024-10-24 | 2024-10-22 | COST | Hines Daniel M. | Principal Acctg Off | F - Tax | $893.49 | -954.44 | 13.0K | -7% | -$852.8K |
| 2024-10-24 | 2024-10-22 | COST | Hines Daniel M. | Principal Acctg Off | A - Grant | $0.00 | +2,149 | 13.1K | +20% | $0 |
Purchase Sale Sale after option exercise All abbreviations