ZAFGEN, INC. 8,000,000 Shares of Common Stock, par value $0.001 per share Underwriting AgreementZafgen, Inc. • June 28th, 2018 • Pharmaceutical preparations • New York
Company FiledJune 28th, 2018 Industry JurisdictionZafgen, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representatives (the “Representatives”), an aggregate of 8,000,000 shares of Common Stock, par value $0.001 per share (the “Common Stock”), of the Company (the “Underwritten Shares”) and, at the option of the Underwriters, up to an additional 1,200,000 shares of Common Stock, par value $0.001 per share, 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, par value $0.001 per share, of the Company to be outstanding after giving effect to the sale of the Shares are referred to herein as the “Stock.”