| Current (1) |
| Chief Executive Officer | 2026 |
| Former (16) |
| Management | 2022 – 2022 |
| Chief Executive Officer | 2025 – 2026 |
| Audit | 1989 – 2003 |
| Audit | 1989 – 1989 |
| Audit | 2003 – 2007 |
| Chief Executive Officer | 2026 – 2026 |
| Management | 2021 – 2022 |
| Chief Executive Officer | 2015 – 2015 |
| Management | 2009 – 2012 |
| Management | 1989 – 2005 |
| Chief Executive Officer | 2024 – 2025 |
| Management | 2020 – 2021 |
| Chief Executive Officer | 2015 – 2020 |
| Management | 1989 – 1989 |
| Management | 2006 – 2009 |
| Management | 2022 – 2024 |