KAISER ALUMINUM CORP 8-K

What Happened Kaiser Aluminum Corporation filed an 8-K (dated January 7, 2026) announcing that Hugh (Jack) J. Barger, III was appointed Executive Vice President — Sales and Marketing effective January 1, 2026 as part of planned succession. The company also entered into a transition letter with former EVP — Sales and Marketing Blain A. Tiffany on January 7, 2026. Under that agreement, effective January 1, 2026, Mr. Tiffany will serve as Advisor to the Chief Executive Officer and remain an employee through December 31, 2026 (the “Transition Period”) while providing transition services.

Key Details

• Appointment effective: Hugh J. Barger, III as EVP — Sales & Marketing, effective January 1, 2026.
• Transition letter date: entered January 7, 2026; Tiffany’s Transition Period runs through December 31, 2026.
• Compensation/benefits for Tiffany: will continue to receive base salary, participate in incentive plans with no change to short- and long-term incentive targets, and retain outstanding equity grants without proration.
• Change in plan participation: Tiffany will be entitled to customary benefits during the Transition Period but will no longer participate in the Kaiser Aluminum Key Employee Severance Benefit Plan.
• The transition letter is filed as Exhibit 10.1 to the 8-K.

Why It Matters This filing documents an orderly, internal succession in the company’s sales and marketing leadership and defines the compensation and role during the handover. For investors, the agreement confirms continuity in leadership and that the company has committed to pay and equity treatment for Mr. Tiffany through the transition (potentially affecting executive compensation expense). The removal from the Key Employee Severance Benefit Plan is a material change in Tiffany’s severance coverage during the Transition Period.