The gross proceeds from the offering, before deducting the underwriting discount and offering expenses, are expected to be approximately $175 million. The offering is expected to close on January 22, 2024, subject to customary closing conditions. In addition, Immatics has granted the underwriters a 30-day option to purchase up to 2,388,750 additional shares at the public offering price, less the underwriting discount.

Jefferies, BofA Securities and Leerink Partners are acting as joint book-running managers for the offering.

A registration statement relating to the securities has been filed with the U.S. Securities and Exchange Commission (the “SEC”) and was declared effective on August 9, 2021. The offering is being made only by means of a prospectus supplement and accompanying prospectus. When available, copies of the final prospectus supplement and the accompanying prospectus relating to the offering may be obtained free of charge from

• Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, telephone: (877) 821-7388, email: Prospectus_Department(at)Jefferies.com;
• BofA Securities, Attention: Prospectus Department, NC1-022-02-25, 201 North Tryon Street, Charlotte, NC 28255-0001, telephone: (800) 294-1322, email: dg.prospectus_requests(at)bofa.com;
• Leerink Partners LLC, Attention: Syndicate Department, 53 State Street, 40th Floor, Boston, MA 02109, telephone: (800) 808-7525, ext. 6105, email: syndicate(at)leerink.com.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. Any offers, solicitations or offers to buy, or any sales of securities will be made in accordance with the registration requirements of the Securities Act of 1933, as amended.