COSTCO WHOLESALE CORP /NEW 4

Executive Vice President Teresa A. Jones had performance-based RSUs in Costco common stock vest into 4,129 shares and simultaneously had 1,458.535 shares withheld for taxes, leaving her with 6,598.269 shares owned directly.

On September 10, 2026, Costco Wholesale Corporation Executive Vice President Teresa A. Jones had performance-based restricted stock units convert into common stock and partially satisfy associated tax obligations. A total of 4,129 shares of common stock were acquired (code "A") at no direct cost upon the satisfaction of fiscal 2026 performance conditions under a grant originally made on October 22, 2025, increasing her directly held position to 8,056.804 shares before tax settlement. On the same date, 1,458.535 shares were withheld (code "F") at an implied price of approximately $902.38 per share, with an estimated value of about $1.32 million, to cover tax liabilities related to the RSU vesting, resulting in post-transaction ownership of 6,598.269 shares. The award vests 20% on the first anniversary of the grant date and an additional 20% per year over the next four years, with potential accelerated vesting under the company’s 2019 Incentive Plan based on long-service anniversaries.

Filing Facts

CIK

909832

Ticker

COST

Form

4

Source Type

sec

Accession

0000909832-26-000072

Alert Tier

7