Century Aluminum Director Andrew Michelmore Receives RSU Grant and Sells Shares

This Form 4 filing reports that Andrew G. Michelmore, a director of Century Aluminum Company (CENX), received an annual grant of restricted stock units (RSUs) on June 15, 2026. The grant consisted of 2,172 RSUs that vested immediately upon grant. On the same day, 652 shares were withheld by the company to satisfy tax obligations related to the vesting of these RSUs. The shares were withheld at a price of $54.55 per share. Following these transactions, Michelmore's direct ownership in Century Aluminum decreased from 91,261 shares to 90,609 shares. The filing indicates that Michelmore is a director of the company but not an officer. These transactions represent standard equity compensation activities for corporate directors, with the share withholding being a common practice to cover tax liabilities associated with equity awards.