| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/05/2023 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 275 | $84.33 | $23.2k | | 03/05/2023 |
| 03/05/2023 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 2k | $0.00 | $0 | | 03/05/2023 |
| 05/18/2022 | KAISER ALUMINUM CORP | KALU | Sale | Common Stock, par value $0.01 per share | 510 | $106.50 | $54.3k | | 05/18/2022 |
| 03/05/2022 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 96 | $95.13 | $9.1k | | 03/05/2022 |
| 03/05/2022 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 260 | $95.13 | $24.7k | | 03/05/2022 |
| 03/05/2022 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 731 | $0.00 | $0 | | 03/05/2022 |
| 03/05/2022 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 233 | $0.00 | $0 | | 03/05/2022 |
| 03/05/2021 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 624 | $0.00 | $0 | | 03/05/2021 |
| 03/05/2021 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 285 | $0.00 | $0 | | 03/05/2021 |
| 03/05/2021 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 111 | $114.61 | $12.7k | | 03/05/2021 |
| 03/05/2021 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 254 | $114.61 | $29.1k | | 03/05/2021 |
| 03/02/2021 | KAISER ALUMINUM CORP | KALU | Sale | Common Stock, par value $0.01 per share | 1.4k | $119.34 | $169k | | 03/02/2021 |
| 05/24/2018 | KAISER ALUMINUM CORP | KALU | Sale | Common Stock, par value $0.01 per share | 979 | $108.23 | $106k | | 05/24/2018 |
| 03/05/2018 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 168 | $101.66 | $17.1k | | 03/05/2018 |
| 03/05/2018 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 70 | $101.66 | $7.1k | | 03/05/2018 |
| 03/05/2018 | KAISER ALUMINUM CORP | KALU | Payment of Exercise | Common Stock, par value $0.01 per share | 505 | $101.66 | $51.3k | | 03/05/2018 |
| 03/05/2018 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 1.3k | $0.00 | $0 | | 03/05/2018 |
| 03/05/2018 | KAISER ALUMINUM CORP | KALU | Grant | Common Stock, par value $0.01 per share | 618 | $0.00 | $0 | | 03/05/2018 |
| 08/08/2017 | KAISER ALUMINUM CORP | KALU | Sale | Common Stock, par value $0.01 per share | 817 | $97.07 | $79.3k | | 08/08/2017 |