4,200,798 Shares Eiger BioPharmaceuticals, Inc. Common Stock, $0.001 par value per share UNDERWRITING AGREEMENTUnderwriting Agreement • October 23rd, 2018 • Eiger BioPharmaceuticals, Inc. • Biological products, (no disgnostic substances) • New York
Eiger BioPharmaceuticals, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to BTIG, LLC (the “Underwriter”) an aggregate of 4,200,798 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 Underwriter an option to purchase up to 630,120 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 Underwriting Agreement are herein collectively called the “Securities.”
