| Director Since | Year Current Term Expires | Current Director Class | Audit Committee | Compensation Committee | Nominating and Corporate Governance Committee | ||||||||||
| Roshawn A. Blunt | 2022 | 2025 | I | X | |||||||||||
| Eric M. Dube, Ph.D. | 2021 | 2025 | I | X | X | * | |||||||||
| Paul W. Hoelscher | 2022 | 2025 | I | X | * | X | |||||||||
| Edward T. Mathers | 2017 | 2026 | II | X | * | ||||||||||
| Bali Muralidhar, M.D., Ph.D. | 2020 | 2026 | II | X | X | ||||||||||
| Stacey D. Seltzer | 2020 | 2026 | II | X | X | ||||||||||
| Gregory J. Flesher | 2020 | 2024 | III | ||||||||||||
| Michael Grey | 2017 | 2024 | III | ||||||||||||
| Niall O’Donnell, Ph.D. | 2017 | 2024 | III | ||||||||||||
| 2023 | 2022 | |||||||
| Audit Fees (1) | $ | 613,412 | $ | 571,830 | ||||
| All Other Fees (2) | 2,000 | 2,000 | ||||||
| Total Fees | $ | 615,412 | $ | 573,830 | ||||
