Governance Overview

The Board of Directors of PTC Therapeutics, Inc. (the "Company") has developed policies, procedures and guidelines for the Company in order to promote sound corporate governance. In addition, the Board has adopted charters for the Audit, Compensation and Nominating and Governance Committees. These documents are provided below, and are subject to modification from time to time as the Board of Directors deems appropriate in the best interests of the Company or as required by applicable laws and regulations.