COSTCO WHOLESALE CORP /NEW (COST) has 427 open-market insider trades by 41 insiders since 2006. Over the last six months insiders net sold $4.6M. The most active filer is Richard A. Galanti, President & VP.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Jeffrey H. Brotman | Chairman | — | 22 | $158.2M | 2017-06-02 |
| James D. Sinegal | Dir | — | 9 | $75.2M | 2018-01-17 |
| Richard A. Galanti | PresVP | — | 55 | $62.4M | 2024-10-24 |
| Paul G. Moulton | VP | — | 15 | $46.9M | 2021-09-14 |
| W. Craig Jelinek | Dir | — | 9 | $45.8M | 2024-12-19 |
| Joseph P. Portera | VP | — | 15 | $44.5M | 2021-09-14 |
| James P. Murphy | VP | — | 15 | $28.4M | 2022-10-22 |
| Susan L. Decker | Dir | — | 29 | $24.2M | 2026-01-16 |
| Russell D. Miller | PresVP | — | 11 | $22.5M | 2026-01-09 |
| Douglas W. Schutt | VP | — | 5 | $21.3M | 2016-10-22 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| William Richard Wilcox | President & VP | Sell | $1.1M | 2026-10-13 |
| Caton Frates | President & VP | Sell | $733K | 2026-09-29 |
| Claudine Adamo | President & VP | Sell | $2.0M | 2026-09-29 |
| Kenneth D. Denman | Director | Sell | $847K | 2026-06-23 |
| Caton Frates | President & VP | Sell | $695K | 2026-04-01 |
| Claudine Adamo | President & VP | Sell | $732K |
Companies that share insiders with COST, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2026-03-09 |
| Teresa A. Jones | President & VP | Sell | $838K | 2026-01-21 |
| Susan L. Decker | Director | Sell | $437K | 2026-01-16 |
| James C. Klauer | President & VP | Sell | $1.4M | 2026-01-14 |
| Russell D. Miller | President & VP | Sell | $1.4M | 2026-01-09 |
| Javier Polit | President & VP | Sell | $4.5M | 2025-12-29 |
| William Richard Wilcox | President & VP | Sell | $2.2M | 2025-11-07 |
| Claudine Adamo | President & VP | Sell | $2.5M | 2025-10-24 |
| Tiffany Marie Barbre | — | Sell | $2.3M | 2025-10-24 |
| Russell D. Miller | President & VP | Sell | $3.1M | 2025-09-29 |