West Neal E plan to sell securities of KAISER ALUMINUM CORP under Form 144

West Neal E filed Form 144 to notify SEC of plan to sell 5000 units of KAISER ALUMINUM CORP securities around 2026-04-28, with aggregate market value of $866,277.85. The total outstanding units is 16340606.0. The amount planned to be sold represents 0.03% of total outstanding units; Recent transactions in past 3 months include: On 02/23/2026, sold 5000 units for $608616.63;