Core Points - Immuneering Corporation has priced its underwritten public offering of 18,959,914 shares of Class A common stock at $9.23 per share, with gross proceeds expected to be approximately $175 million before deductions [1][2] - Sanofi has agreed to purchase 2,708,559 shares of Immuneering's Class A common stock at the same price in a separate private placement transaction [1] - The public offering and private placement are expected to close concurrently on or about September 26, 2025, subject to customary closing conditions [1] Use of Proceeds - The net proceeds from the public offering and private placement will be used to advance the preclinical and clinical development of Immuneering's product candidates, as well as for working capital and other general corporate purposes [2] Offering Details - The public offering is made pursuant to a shelf registration statement on Form S-3, which was filed with the SEC on August 13, 2025, and declared effective on August 20, 2025 [3] - A prospectus supplement relating to the offering will be filed with the SEC [3] Private Placement - The shares sold in the private placement have not been registered under the Securities Act of 1933 and may not be offered or sold in the U.S. without registration or an applicable exemption [4]