Committee Composition | PTC Therapeutics, Inc.

Director Name	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee
Emma Reeve	Audit Committee
Stephanie Okey			Nominating and Corporate Governance Committee
Michael Schmertzler		Compensation Committee	Nominating and Corporate Governance Committee
Mary Smith	Audit Committee	Compensation Committee
David P. Southwell	Audit Committee	Compensation Committee
Glenn D. Steele JR., MD, Ph.D		Compensation Committee
Alethia Young	Audit Committee
Jerome B. Zeldis Ph.D.			Nominating and Corporate Governance Committee

= Chairperson = Member = Chairman of the Board