8,500,000 Shares ARENA PHARMACEUTICALS, INC. Common Stock UNDERWRITING AGREEMENTUnderwriting Agreement • March 22nd, 2018 • Arena Pharmaceuticals Inc • Pharmaceutical preparations • New York
Arena Pharmaceuticals, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions contained herein, to sell to you (the “Representatives”), as Representatives of the underwriters named on Schedule I to this Agreement (the “Underwriters”), an aggregate of 8,500,000 shares (the “Firm Shares”) of the Company’s common stock, $0.0001 par value per share (the “Common Stock”). The respective amounts of the Firm Shares to be purchased by each of the several Underwriters are set forth opposite their names on Schedule I hereto. In addition, the Company proposes to grant to the Underwriters an option to purchase up to an additional 1,275,000 shares (the “Option Shares”) of Common Stock from the Company. The Firm Shares and the Option Shares are collectively called the “Shares.”
