COSTCO WHOLESALE CORP /NEW 4

Executive Vice President James C. Klauer had performance-based RSUs vest into Costco common stock on September 10, 2026, with shares both acquired and withheld for taxes.

On September 10, 2026, Costco Wholesale Corp. Executive Vice President James C. Klauer had performance-based restricted stock units vest, resulting in an acquisition of 4,129 shares of common stock, bringing his directly held position to approximately 48,966 shares. In connection with this vesting, 936.115 shares were automatically withheld and forfeited by the issuer at an implied price of about $902.38 per share to satisfy tax withholding obligations, leaving him with direct ownership of roughly 48,029.879 shares after the transaction. He also has an additional 98.5 shares of common stock reported as indirectly owned through his spouse. The RSU grant was originally made on October 22, 2025, subject to fiscal 2026 performance conditions that were deemed satisfied by the Compensation Committee, and the earned awards vest 20% on the first anniversary and 20% annually over the next four years, with potential accelerated vesting under the company’s 2019 Incentive Plan based on long service milestones.

Filing Facts

CIK

909832

Ticker

COST

Form

4

Source Type

sec

Accession

0000909832-26-000074

Alert Tier

7