3,200,000 Shares Eiger BioPharmaceuticals, Inc. Common Stock, $0.001 par value per share PURCHASE AGREEMENTPurchase Agreement • May 25th, 2018 • Eiger BioPharmaceuticals, Inc. • Biological products, (no disgnostic substances) • New York
Eiger BioPharmaceuticals, Inc., a Delaware corporation (the “Company”), proposes to sell to the several Underwriters named in Schedule I hereto (the “Underwriters”) an aggregate of 3,200,000 shares (the “Firm Shares”) of common stock, $0.001 par value per share (the “Common Stock”), of the Company. The Company has also granted to the Underwriters an option to purchase up to 480,000 additional shares of Common Stock on the terms and for the purposes set forth in Section 3 hereof (the “Option Shares”). The Firm Shares and any Option Shares purchased pursuant to this Purchase Agreement are herein collectively called the “Securities.”
