ULTRAGENYX PHARMACEUTICAL INC. 3,000,000 Shares of Common Stock Underwriting AgreementUnderwriting Agreement • February 10th, 2015 • Ultragenyx Pharmaceutical Inc. • Pharmaceutical preparations • New York
Ultragenyx Pharmaceutical 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 3,000,000 shares of common stock, par value $0.001 per share (the “Common Stock”), of the Company (the “Underwritten Shares”). In addition, the Company proposes to issue and sell, at the option of the Underwriters, up to an additional 450,000 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”.
