Form 4 Filing for KAISER ALUMINUM CORP

Neal West, EVP & CFO of KAISER ALUMINUM CORP (KALU), reported a disposition of 5,000 shares of common stock on April 28, 2026. The transaction code "S" indicates a sale, and the shares were disposed of at a price of $173.29 per share. Following this transaction, Mr. West directly owns 18,390 shares. The filing also notes that shares were acquired pursuant to grants of restricted stock units, with the disposition occurring from the West Family Trust, indicating indirect ownership. The signature date was April 29, 2026.