Apellis Pharmaceuticals, Inc. 7,446,809 Shares Common Stock ($0.0001 par value per share) Underwriting AgreementLetter Agreement • March 25th, 2022 • Apellis Pharmaceuticals, Inc. • Pharmaceutical preparations • New York
Apellis Pharmaceuticals, Inc., a corporation organized under the laws of the State of Delaware (the “Company”), proposes to sell to the several underwriters named in Schedule I hereto (the “Underwriters”), for whom you (the “Representatives”) are acting as representatives, 7,446,809 shares of common stock, $0.0001 par value per share (“Common Stock”) of the Company (said shares to be issued and sold by the Company being hereinafter called the “Underwritten Securities”). The Company also proposes to grant to the Underwriters an option to purchase up to 1,117,021 additional shares of Common Stock (the “Option Securities”; the Option Securities, together with the Underwritten Securities, being hereinafter called the “Securities”). To the extent there are no additional Underwriters listed on Schedule I other than you, the term Representatives as used herein shall mean you, as Underwriters, and the terms Representatives and Underwriters shall mean either the singular or plural as the contex
