Form 4 for COST Costco
Accepted 2025-10-24 00:00:00 ET · period of report 2025-10-22 · accession 0000909832-25-000144 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
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 | 2025-10-22 | A | A | 2,118 | $0.00 | 6,937.15 | D | — | — | (F1) Grant of Restricted Stock Units. Vests one-fifth on October 22, 2026, and one-fifth annually on October 22 for the following four years. In addition, under the Stock 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 | 2025-10-22 | F | D | 113.53 | $944.68 | 6,823.62 | D | — | — | (F3) This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025. |
| 3 | Common | Common Stock | 2025-10-22 | F | D | 90.23 | $944.68 | 6,733.39 | D | — | — | (F3) This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025. |
| 4 | Common | Common Stock | 2025-10-24 | S | D | 1,239.38 | $934.62 | 5,155.45 | D | — | — | (F4) The price shown is a weighted average price for shares sold in multiple transactions; the sale prices ranged from $934.47 to $934.84 per share. The reporting person will provide the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. |
| 5 | Common | Common Stock | 2025-10-22 | F | D | 135.40 | $944.68 | 6,479.43 | D | — | — | (F3) This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025. |
| 6 | Common | Common Stock | 2025-10-22 | F | D | 84.60 | $944.68 | 6,394.83 | D | — | — | (F3) This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025. |
| 7 | Common | Common Stock | 2025-10-22 | F | D | 118.56 | $944.68 | 6,614.83 | D | — | — | (F3) This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025. |