SEC Form 3 · accession 0000909832-26-000066
COSTCO WHOLESALE CORP /NEW · COST
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Adam Webb Self
Officer — Executive Vice President
Period of report
Aug 31, 2026
Accepted (ET)
Sep 10, 2026 · 5:48 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0000909832
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | holding | — | — | — | 3,527 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Includes 2,726.578 shares of common stock that are unvested grants of Restricted Stock Units ("RSUs"). The vesting schedule for the RSUs is as follows: 1,016.942 shares will vest on October 22, 2026 and 1,709.636 shares will vest on October 22, 2027.
Remarks
Exhibit 24: Power of Attorney provided herewith.