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COMMITTEE COMPOSITION

Independent Director Audit Committee Compensation Committee Nominating and Governance Committee
Fred Eshelman, Pharm.D. Nominating and Governance Committee
Amato Giaccia, Ph.D. Audit Committee Compensation Committee Nominating and Governance Committee
John Hohneker, M.D. Compensation Committee
Sigurd Kirk Audit Committee
Michael Rogers Audit Committee Compensation Committee
Eric Zhang, CFA Audit Committee
= Independent Director = Chairperson = Member = Chairman of the Board