Costco Wholesale Corp
COSTNasdaqCIK 909832Consumer discretionaryFiscal year ends Aug 30
All transactions: 48
Non-derivative transactions reported on Forms 4, newest first. Purchases and sales (codes P and S) are open-market trades; the other codes are grants, exercises, withholding and gifts. The reported price is as stated on the form, not a market price.
What these mean: insiders, Form 4, transaction codes, Rule 10b5-1 plans.
No open-market purchases or sales by insiders are in coverage from Nov 2024 to Oct 2026.
| Date | Insider | Transaction | Shares | Reported price | Value | Filing |
|---|---|---|---|---|---|---|
| 2026-10-22 | Self Adam WebbExecutive Vice President, Officer | Tax withholding | 40.517 | $1,018.21 | $41.3k | Form 4 |
| 2026-10-22 | Self Adam WebbExecutive Vice President, Officer | Tax withholding | 36.044 | $1,018.21 | $36.7k | Form 4 |
| 2026-10-22 | Self Adam WebbExecutive Vice President, Officer | Tax withholding | 57.332 | $1,018.21 | $58.4k | Form 4 |
| 2026-10-22 | Self Adam WebbExecutive Vice President, Officer | Tax withholding | 64.211 | $1,018.21 | $65.4k | Form 4 |
| 2026-10-22 | Self Adam WebbExecutive Vice President, Officer | Tax withholding | 61.663 | $1,018.21 | $62.8k | Form 4 |
| 2026-10-22 | Millerchip GaryExecutive Vice President, Officer | Tax withholding | 816.968 | $1,018.21 | $831.8k | Form 4 |
| 2026-10-22 | Millerchip GaryExecutive Vice President, Officer | Tax withholding | 500.323 | $1,018.21 | $509.4k | Form 4 |
| 2026-10-22 | Millerchip GaryExecutive Vice President, Officer | Tax withholding | 313.451 | $1,018.21 | $319.2k | Form 4 |
| 2026-10-22 | Millerchip GaryExecutive Vice President, Officer | Grant or award | 6,140 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Polit JavierExecutive Vice President, Officer | Tax withholding | 549.437 | $1,018.21 | $559.4k | Form 4 |
| 2026-10-22 | Polit JavierExecutive Vice President, Officer | Tax withholding | 337.01 | $1,018.21 | $343.1k | Form 4 |
| 2026-10-22 | Polit JavierExecutive Vice President, Officer | Tax withholding | 294.297 | $1,018.21 | $299.7k | Form 4 |
| 2026-10-22 | Polit JavierExecutive Vice President, Officer | Tax withholding | 390.872 | $1,018.21 | $398.0k | Form 4 |
| 2026-10-22 | Polit JavierExecutive Vice President, Officer | Grant or award | 4,129 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Vachris Roland MichaelPresident and CEO, Director, Officer | Tax withholding | 1,131.478 | $1,018.21 | $1.2m | Form 4 |
| 2026-10-22 | Vachris Roland MichaelPresident and CEO, Director, Officer | Tax withholding | 1,120.544 | $1,018.21 | $1.1m | Form 4 |
| 2026-10-22 | Vachris Roland MichaelPresident and CEO, Director, Officer | Tax withholding | 1,403.592 | $1,018.21 | $1.4m | Form 4 |
| 2026-10-22 | Vachris Roland MichaelPresident and CEO, Director, Officer | Grant or award | 13,973 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Wilderotter Mary AgnesDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Stanton John WDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Raikes Jeffrey SDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Raimondo Gina MarieDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Klauer James CExecutive Vice President, Officer | Tax withholding | 541.85 | $1,018.21 | $551.7k | Form 4 |
| 2026-10-22 | Klauer James CExecutive Vice President, Officer | Tax withholding | 442.688 | $1,018.21 | $450.7k | Form 4 |
| 2026-10-22 | Klauer James CExecutive Vice President, Officer | Tax withholding | 529.972 | $1,018.21 | $539.6k | Form 4 |
| 2026-10-22 | Klauer James CExecutive Vice President, Officer | Tax withholding | 396.177 | $1,018.21 | $403.4k | Form 4 |
| 2026-10-22 | Klauer James CExecutive Vice President, Officer | Tax withholding | 190.678 | $1,018.21 | $194.2k | Form 4 |
| 2026-10-22 | James Hamilton EDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Jewell Sarah MR SallyDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | George Sarah CatherineExecutive Vice President, Officer | Tax withholding | 46.711 | $1,018.21 | $47.6k | Form 4 |
| 2026-10-22 | George Sarah CatherineExecutive Vice President, Officer | Tax withholding | 34.821 | $1,018.21 | $35.5k | Form 4 |
| 2026-10-22 | George Sarah CatherineExecutive Vice President, Officer | Tax withholding | 55.774 | $1,018.21 | $56.8k | Form 4 |
| 2026-10-22 | George Sarah CatherineExecutive Vice President, Officer | Tax withholding | 62.467 | $1,018.21 | $63.6k | Form 4 |
| 2026-10-22 | George Sarah CatherineExecutive Vice President, Officer | Tax withholding | 59.988 | $1,018.21 | $61.1k | Form 4 |
| 2026-10-22 | Foulkes HelenaDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Denman Kenneth DDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Tax withholding | 166.451 | $1,018.21 | $169.5k | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Tax withholding | 84.603 | $1,018.21 | $86.1k | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Tax withholding | 101.536 | $1,018.21 | $103.4k | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Tax withholding | 93.948 | $1,018.21 | $95.7k | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Tax withholding | 90.23 | $1,018.21 | $91.9k | Form 4 |
| 2026-10-22 | Barbre Tiffany MariePrincipal Accounting Officer | Grant or award | 1,965 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Decker Susan LDirector | Grant or award | 266 | $0.00 | $0 | Form 4 |
| 2026-10-22 | Adamo ClaudineExecutive Vice President, Officer | Tax withholding | 108.607 | $1,018.21 | $110.6k | Form 4 |
| 2026-10-22 | Adamo ClaudineExecutive Vice President, Officer | Tax withholding | 110.967 | $1,018.21 | $113.0k | Form 4 |
| 2026-10-22 | Adamo ClaudineExecutive Vice President, Officer | Tax withholding | 177.058 | $1,018.21 | $180.3k | Form 4 |
| 2026-10-22 | Adamo ClaudineExecutive Vice President, Officer | Tax withholding | 198.289 | $1,018.21 | $201.9k | Form 4 |
| 2026-10-22 | Adamo ClaudineExecutive Vice President, Officer | Tax withholding | 96.942 | $1,018.21 | $98.7k | Form 4 |
Source: SEC EDGAR, Forms 4. Last ingested by Listed: Oct 27, 2026, 16:16 ET. Listed shows no prices and gives no investment advice.