Investors - Committee Composition Audit Committee Compensation Committee Nominating and Governance Committee Scientific Committee Strategic Review Committee Brian W. Adams Samira Beckwith Audit Committee Scientific Committee Dennis Helling Nominating and Governance Committee Scientific Committee Ron Mitchell Compensation Committee Strategic Review Committee Kathrine O’Brien Compensation Committee Nominating and Governance Committee Michael Purcell Audit Committee Strategic Review Committee Derek C. Schrier Strategic Review Committee Jonathan D. Schwartz Audit Committee Nominating and Governance Committee Pamela Schweitzer Compensation Committee Scientific Committee = Chairperson = Member