Underwriting AgreementPTC Therapeutics, Inc. • January 25th, 2019 • Pharmaceutical preparations • New York
PTC Therapeutics, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule I hereto (the “Underwriters”), for whom you are acting as representative (the “Representative”), an aggregate of 6,720,000 shares of common stock, par value $0.001 per share, of the Company (the “Underwritten Shares”) and, at the option of the Underwriters, up to an additional 1,008,000 shares of common stock of the Company (the “Option Shares”). The Underwritten Shares and the Option Shares are herein referred to as the “Shares”. The shares of common stock of the Company to be outstanding after giving effect to the sale of the Shares are referred to herein as the “Stock”. To the extent that you are the only Underwriter, all references to “each Underwriter,” “the Underwriters” or “Representative” shall refer to just you.
