Costco Wholesale Corp Principal Accounting Officer Tiffany Marie Barbre filed a Form 4 on October 26, 2026, disclosing a restricted stock unit grant and related tax-withholding transactions dated October 22, 2026.

Key Highlights

  • RSU grant: Barbre received 1,965 restricted stock units on October 22, 2026, at a price of $0, reported as an acquisition (code A) under Costco's 2019 Stock Incentive Plan.
  • Vesting schedule: According to the filing, the grant vests one-fifth on October 22, 2027, and one-fifth annually on October 22 for the following four years, with potential accelerated vesting tied to the reporting person's 25th, 30th, and 35th years of service.
  • Tax withholding: Five separate withholding transactions (code F) on October 22, 2026, totaling 536.768 shares, were executed at $1,018.21 per share, described as the closing market price of Costco common stock on Nasdaq that day.
  • Resulting direct holdings: Following all reported transactions, Barbre directly held 6,583.68 shares of Costco common stock.
  • Indirect holdings: The filing also reports 2.1788 shares held indirectly through a 401(k) plan.
  • Issuer and exchange: Costco Wholesale Corp /NEW is listed on NASDAQ:COST.

Barbre RSU Grant and Tax Withholding Details at Costco, October 2026

According to the Form 4 filed with the SEC on October 26, 2026, Tiffany Marie Barbre, identified as Principal Accounting Officer of Costco Wholesale Corp /NEW (NASDAQ:COST), received a grant of 1,965 restricted stock units on October 22, 2026. The filing notes this grant carried a price of $0 and is classified as an acquisition under transaction code A. The grant was made under the 2019 Stock Incentive Plan and is eligible for accelerated vesting upon the anniversary of the reporting person's 25th, 30th, and 35th years of service, as the filing states.

Also on October 22, 2026, the filing discloses five tax-withholding transactions (code F) in which the company withheld shares in connection with the vesting of previously granted restricted stock units. The shares withheld in each transaction were 90.23, 93.948, 101.536, 84.603, and 166.451, all at a price of $1,018.21, which the filing describes as "the closing market price of Costco common stock on Nasdaq on October 22, 2026." After the grant and all five withholding transactions, Barbre's direct beneficial ownership stood at 6,583.68 shares. The filing also records 2.1788 shares held indirectly through a 401(k) plan. The Form 4 was signed by Alejandro Torres as Attorney-in-Fact on October 26, 2026.

What Was Disclosed

The filing reports a 1,965-unit RSU grant to Costco's Principal Accounting Officer on October 22, 2026, followed by five company tax-withholding transactions at $1,018.21 per share, leaving her with direct ownership of 6,583.68 shares.