Century Aluminum Director Errol Glasser Receives 2,172 Restricted Stock Units

This Form 4 filing reports that Errol Glasser, a director of Century Aluminum Company (CENX), received 2,172 restricted stock units (RSUs) on June 15, 2026. The RSUs represent an annual grant that vested immediately upon issuance. Following this transaction, Glasser holds 120,869 shares of Century Aluminum common stock, which includes shares issuable from vested RSUs whose settlement has been deferred pursuant to a previous deferral election. The filing indicates this is a routine annual equity compensation grant to a non-employee director. The transaction was reported on June 17, 2026, and was signed by John DeZee as attorney-in-fact for Errol Glasser.