COSTCO WHOLESALE CORP /NEW 4

Executive Vice President William Richard Wilcox had performance-based RSUs in Costco common stock vest on September 10, 2026, acquiring 4,129 shares with 1,934.609 shares withheld for taxes, resulting in 4,194.391 shares directly owned afterward.

On September 10, 2026, Costco Wholesale Corporation Executive Vice President William Richard Wilcox had performance-based restricted stock units (reported as common stock) vest and be acquired, resulting in a net increase in directly held shares. One transaction shows an acquisition of 4,129 shares of common stock (coded 'A') tied to the satisfaction of fiscal 2026 performance conditions under the 2019 Incentive Plan, increasing his direct ownership to 6,129 shares in that line. A second transaction on the same date (coded 'F') reflects 1,934.609 shares withheld at a price of $902.38 per share, likely to cover tax obligations on the vesting, leaving 4,194.391 directly owned shares after this withholding. The award vests 20% on the first anniversary of the original October 22, 2025 grant date and 20% annually over the following four years, with potential accelerated vesting based on long-service milestones.

Filing Facts

CIK

909832

Ticker

COST

Form

4

Source Type

sec

Accession

0000909832-26-000080

Alert Tier

7