Foster David A 4

What Happened
David A. Foster, a director of Kaiser Aluminum Corp. (KALU), was granted 786 restricted shares on June 4, 2026. The shares were issued at $0.00 (standard for awards) with a reported acquisition value of $0. This is a compensation-related restricted stock grant, not an open-market purchase or sale.

Key Details

• Transaction date: 2026-06-04; Form 4 filed: 2026-06-05 (timely filing).
• Transaction type/code: Award/Grant (A). Price: $0.00. Shares granted: 786. Reported cash value on form: $0.
• Vesting / restrictions: All restrictions lapse on June 4, 2027 (per footnote).
• Plan: Granted under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan.
• Shares owned after the transaction: Not specified in the provided data.
• Filing status: Not marked late.

Context
Restricted stock grants are typically compensation for service and usually vest over time; they are informative about executive/director pay but do not necessarily signal immediate buying or selling intent. This award increases Foster’s potential future stake if the restrictions lapse and the shares vest.