| VEBA for Retirees of Kaiser Aluminum10% owner · 369 transactions | — | 1.89Mas of Apr 2012 | — | — | 6.92M |
| Harvey KeithPresident & CEO, Director · 111 transactions | — | 94.3K | 320.8K | 2.6K | 119.0K |
| Rinkenberger Daniel JEVP & CFO · 51 transactions | — | 88.3Kas of Mar 2018 | 124.8K | 4.5K | 11.8K |
| Barneson JohnSr. VP - Corporate Development · 48 transactions | — | 61.5K†as of Mar 2019 | 81.7K | 62.94 | 38.7K |
| Bunin PeteEVP - Strategy · 24 transactions | — | 59.8Kas of Jul 2014 | 39.5K | — | 21.0K |
| Walsh JasonEVP - Manufacturing · 25 transactions | — | 42.8Kas of Aug 2025 | 21.3K | — | — |
| West Neal EEVP & CFO · 95 transactions | — | 37.5K† | 87.0K | 500 | 30.8K |
| Hockema Jack ADirector · 152 transactions | — | 34.2K†as of Jun 2024 | 596.3K | 3.0K | 360.4K |
| Osborne Alfred E JrDirector · 50 transactions | — | 29.0K†as of Jun 2023 | 39.7K | 4.2K | 14.6K |
| Donnan John MalcolmEVP, CAO and GC · 101 transactions | — | 28.2K | 206.7K | — | 129.1K |
| Tiffany BlainEVP - Sales & Marketing · 18 transactions | — | 26.3K | 14.6K | — | 8.7K |
| Parkinson RaySVP - AE & Innovation · 61 transactions | — | 24.6K†as of Mar 2025 | 53.1K | — | 29.2K |
| Foster David ADirector · 19 transactions | — | 24.3K | 25.3K | — | 1.0K |
| Bellino Joseph PExecutive VP & CFO · 3 transactions | — | 23.8Kas of Mar 2008 | 23.8K | — | — |
| McAuliffe James ESr. VP - Human Resources · 19 transactions | — | 23.3Kas of Mar 2012 | 17.9K | — | 12.8K |
| Robb Thomas H.EVP - Manufacturing · 2 transactions | — | 17.9K | 3.4K | — | — |
| Van Leeuwen Thomas MeltonDirector · 35 transactions | — | 16.7Kas of Jun 2021 | 30.9K | 4.0K | 18.1K |
| Hopp Teresa ADirector · 14 transactions | — | 15.8Kas of Jun 2017 | 15.8K | — | — |
| Stebbins Donald JDirector · 13 transactions | — | 14.8K† | 15.4K | — | — |
| Murdy William FDirector · 25 transactions | — | 13.9Kas of May 2015 | 17.8K | 2.5K | 4.9K |
| Bartholomew CarolynDirector · 21 transactions | — | 13.5Kas of Dec 2019 | 17.2K | 287 | 4.0K |
| Wilcox BrettDirector · 53 transactions | — | 12.9K† | 41.9K | 2.0K | 29.0K |
| Krouse MarkVP - Human Resources · 37 transactions | — | 12.8K†as of Mar 2023 | 25.1K | — | 6.4K |
| Arnold Michael CDirector · 9 transactions | — | 11.4K | 11.4K | — | — |
| Hassey L PatrickDirector · 14 transactions | — | 11.1Kas of Jun 2020 | 12.0K | — | — |
| Ellsworth Melinda CVP IR & Corp. Communications · 60 transactions | — | 10.3K†as of Mar 2022 | 29.0K | — | 8.6K |
| Sebastian Teresa MosleyDirector · 12 transactions | — | 9.9K†as of Jun 2024 | 9.9K | — | — |
| Quinn JackDirector · 32 transactions | — | 8.8Kas of Jul 2018 | 19.7K | 2.6K | 7.1K |
| Frankel Carl BennettDirector · 12 transactions | — | 8.7Kas of Nov 2008 | 3.7K | 5.0K | — |
| Williams Kevin WDirector · 6 transactions | — | 8.6Kas of Jun 2025 | 8.6K | — | — |
| Huey JenniferVP & Chief Accounting Officer · 19 transactions | — | 7.9Kas of Mar 2023 | 8.7K | — | 160 |
| Narayan VijaiVP, Corp Ctrl & CAO · 9 transactions | — | 7.6K | 5.3K | — | — |
| Weaver BrantVP - Strategic Development · 17 transactions | — | 7.3Kas of Jun 2023 | 6.0K | — | 660 |
| Miller Del LVP - Metal Strategy · 20 transactions | — | 6.9Kas of Mar 2023 | 5.8K | — | 5.0K |
| Martin LauraleeDirector · 34 transactions | — | 6.7Kas of Jun 2025 | 35.7K | — | 11.5K |
| Barger Hugh J. IIIEVP - Sales & Marketing · 1 transaction | — | 5.7K | 1.7K | — | — |
| Grimley Richard P.Director · 8 transactions | — | 5.4K | 6.9K | — | 1.5K |
| Liggett Emily MDirector · 5 transactions | — | 5.1Kas of Jun 2021 | 5.1K | — | — |
| Minor Glenda JDirector · 4 transactions | — | 4.5K | 4.5K | — | — |
| Gheorghe IulianSVP - Adv Eng & Innovation · 4 transactions | — | 4.4K | 852 | — | 175 |
| Proctor GeorganneDirector · 6 transactions | — | 4.3Kas of Jun 2008 | 4.3K | — | — |
| Gerard Leo WilfredDirector · 5 transactions | — | 4.3Kas of Jun 2022 | 4.9K | — | 663 |
| Hoffman James DonaldDirector · 4 transactions | — | 3.8K | 3.8K | — | — |
| Glas Kimberly ThompsonDirector · 3 transactions | — | 3.5K | 3.5K | — | — |
| Lynn CourtneyVice President and Treasurer · 2 transactions | — | 2.2Kas of Mar 2020 | 2.2K | — | — |
| Rowsell Lynton JohnVP & Chief Accounting Officer · 4 transactions | — | 905as of May 2008 | 1.1K | — | 151 |
| Becker GeorgeDirector · 2 transactions | — | 693as of Aug 2006 | 1.0K | — | — |
| Maxxam Inc10% owner · 2 transactions | — | 0as of Jul 2006 | — | — | 750.0K |
| Cruikshank Robert JDirector · 1 transaction | — | 0as of Jul 2006 | — | — | — |
| Haymaker George TDirector · 1 transaction | — | 0as of Jul 2006 | — | — | — |
| Maddox Daniel DVice President and Controller · 2 transactions | — | 0as of Jul 2006 | 11.3K | — | — |
| Maxxam Group Holdings Inc10% owner · 1 transaction | — | 0as of Jul 2006 | — | — | — |