AILERON THERAPEUTICS, INC. Common Stock, par value $0.001 per share Underwriting AgreementAileron Therapeutics Inc • June 5th, 2020 • Pharmaceutical preparations • New York
Aileron Therapeutics, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated herein, to issue and sell to the Underwriters named in Schedule I hereto (the “Underwriters”) for whom William Blair & Company, L.L.C. is acting as representative (the “Representative” or “you”) an aggregate of 9,090,910 shares (the “Firm Securities”) and, at the election of the Underwriters, up to 1,363,636 additional shares (the “Optional Securities”) of common stock, par value $0.001 per share (the “Common Stock”), of the Company (the Firm Securities and the Optional Securities that the Underwriters elect to purchase pursuant to Section 2 hereof are herein collectively called the “Securities”). To the extent that you are the only Underwriter, all references to “each Underwriter,” “the Underwriters” or “Representative” shall refer to just you.
