| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Grimley Richard P. | Director | 1550 WEST MCEWEN DRIVE, SUITE 500, FRANKLIN | /s/ Cherrie I. Tsai, with power of attorney for Richard P. Grimley | 12 Jun 2025 | 0001972491 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | KALU | Common Stock, par value $0.01 per share | Award | $0 | +1,905 | +45% | $0.000000 | 6,102 | 10 Jun 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 10, 2026. |