| Alcoa Inc.10% owner · 1 transaction | — | 36.31Mas of Oct 2016 | — | — | — |
| Arconic Inc.Former 10% owner · 1 transaction | — | 12.96Mas of Feb 2017 | — | — | 23.35M |
| Harvey Roy ChristopherPresident, CEO & Director, Director · 35 transactions | — | 951.0K†as of Feb 2023 | 1.89M | — | 506.2K |
| Oplinger William FPresident, CEO & Director, Director · 61 transactions | — | 338.2K† | 1.03M | — | 530.3K |
| Beerman Molly S.EVP & CFO · 36 transactions | — | 119.5K | 176.3K | — | 12.5K |
| Williams Steven WDirector · 45 transactions | — | 101.7Kas of Jul 2025 | 101.7K | — | — |
| Slaven John DEVP & Chief Operations Officer · 14 transactions | — | 84.8Kas of Jan 2023 | 175.6K | — | 40.6K |
| Reyes Timothy D.EVP & Chief Commercial Officer · 17 transactions | — | 79.9K†as of Jan 2022 | 107.5K | — | 37.6K |
| Bacchi RenatoEVP & Chief Commercial Officer · 23 transactions | — | 75.6K | 99.8K | — | 33.9K |
| Reed Matthew TEVP, Chief Operations Officer · 4 transactions | — | 72.9K | 76.4K | — | — |
| Jones Tammi AEVP & CHRO · 90 transactions | — | 67.5K† | 163.6K | — | 55.0K |
| Fisher Leigh AnnEVP & Chief H.R. Officer · 15 transactions | — | 60.9K†as of Feb 2020 | 46.4K | — | — |
| Citrino Mary AnneDirector · 17 transactions | — | 56.7K | 56.7K | — | — |
| FLYNN Timothy PatrickDirector · 22 transactions | — | 55.6Kas of Jan 2021 | 55.6K | — | — |
| Zedillo ErnestoDirector · 20 transactions | — | 54.8Kas of May 2025 | 54.8K | — | — |
| Hughes James AltonDirector · 13 transactions | — | 53.6K | 53.6K | — | — |
| Roberts Carol LDirector · 14 transactions | — | 53.6K | 55.9K | — | — |
| O'Neill Michelle LEVP & Chief Ext. Aff. Officer · 2 transactions | — | 53.3K†as of Feb 2020 | 8.6K | — | — |
| Sigurdsson Tomas MarExec VP and COO · 11 transactions | — | 46.8Kas of Jan 2018 | 20.9K | — | 10.0K |
| Collins Robert SeanExec VP and Controller · 6 transactions | — | 46.8K†as of Nov 2016 | 40.4K | — | 40.4K |
| Hastings AndrewEVP & Gen. Counsel · 8 transactions | — | 43.5K | 48.8K | — | — |
| Kahrs Benjamin DEVP & Chief Innovation Officer · 17 transactions | — | 41.8Kas of Jan 2023 | 70.2K | — | 43.5K |
| Fiore PasqualeDirector · 9 transactions | — | 40.8K | 40.8K | — | — |
| Nevels James EDirector · 19 transactions | — | 38.8Kas of May 2022 | 36.7K | 2.0K | — |
| Parker Michael A.President, Alumina segment · 2 transactions | — | 38.2Kas of Jan 2019 | 8.1K | — | — |
| Heeter Jeffrey D.EVP & Gen. Counsel · 35 transactions | — | 37.8Kas of Jan 2023 | 217.2K | — | 151.4K |
| Sitherwood SuzanneDirector · 7 transactions | — | 34.0Kas of May 2021 | 34.0K | — | — |
| Morris Michael GDirector · 6 transactions | — | 33.6Kas of Sep 2020 | 30.3K | — | — |
| Fuller Kathryn SDirector · 6 transactions | — | 30.3Kas of Sep 2020 | 30.3K | — | — |
| Elam Harden SonyaEVP & Chief Ext. Aff. Officer · 10 transactions | — | 29.4Kas of Jan 2023 | 25.4K | — | 5.8K |
| Gagstetter NicolEVP & Chief Ext. Aff. Officer · 4 transactions | — | 23.4Kas of Jan 2025 | 24.2K | — | — |
| Gorman Thomas JosephDirector · 7 transactions | — | 23.3K | 23.3K | — | — |
| Dixon Garret J.President, Bauxite segment · 2 transactions | — | 21.8Kas of Jan 2019 | 12.5K | — | — |
| Bevan John ADirector · 3 transactions | — | 20.8K† | 12.2K | — | — |
| Roberts Jackson PrinceDirector · 6 transactions | — | 19.7K | 19.7K | — | — |
| de Oliveira Marques RobertoDirector · 4 transactions | — | 15.8K | 15.8K | — | — |
| Owens James WDirector · 4 transactions | — | 14.5K†as of May 2019 | 12.9K | — | — |
| Thomas Kelly R.EVP & Chief Commercial Officer · 3 transactions | — | 13.3Kas of Jan 2023 | 15.0K | — | — |
| Henry ReneeSVP & Controller · 9 transactions | — | 13.0K | 9.3K | — | — |
| Field AlistairDirector · 3 transactions | — | 12.2K | 12.2K | — | — |
| Galovich BrianDirector · 1 transaction | — | 0 | 2.5K | — | — |
| Olson Emily M.EVP & Chief Ext. Aff. Officer · 1 transaction | — | 0 | 8.8K | — | — |