Form 4 for COST Costco
Accepted 2026-09-14 17:25:36 ET · period of report 2026-09-10 · accession 0000909832-26-000076 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-09-10 | A | A | 4,552 | $0.00 | 15,807.89 | D | — | — | (F1) Grant was initially made on October 22, 2025, subject to performance conditions concerning fiscal 2026, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service. (F2) Not applicable. Grant of Restricted Stock Units. |
| 2 | Common | Common Stock | 2026-09-10 | F | D | 1,561.66 | $902.38 | 14,246.23 | D | — | — |