RAPT RAPT Therapeutics Inc

RAPT Therapeutics, Inc. (Nasdaq: RAPT), a clinical-stage immunology-based biopharmaceutical company focused on discovering, developing and commercializing oral small molecule therapies for patients with significant unmet needs in oncology and inflammatory diseases, today announced that it has commenced an underwritten public offering of 2,000,000 shares of its common stock. The Company expects to grant the underwriters a 30-day option to purchase up to an additional 300,000 shares of common stock sold in connection with the offering. All of the shares in the offering will be sold by RAPT.  The proposed offering is subject to market and other conditions, and there can be no assurances as to whether or when the proposed offering may be completed, or as to the actual size or terms of the proposed offering.

BMO Capital Markets, Wells Fargo Securities, UBS Investment Bank and Cantor Fitzgerald & Co. are acting as joint book-running managers for the offering.

A registration statement related to the offering has been filed with the Securities and Exchange Commission but has not yet become effective.

The offering is being made only by means of a prospectus. A copy of the preliminary prospectus relating to this offering may be obtained from: BMO Capital Markets Corp., Attention: Equity Syndicate Department, 3 Times Square, 25th Floor, New York, NY 10036, by telephone at (800) 414-3627 or by e-mail at bmoprospectus@bmo.com; Wells Fargo Securities, LLC, Attention: Equity Syndicate Department, 500 West 33rd Street, New York, New York 10001, or by email at cmclientsupport@wellsfargo.com, or by telephone at (800) 326-5897; UBS Securities LLC, Attention: Prospectus Department, 1285 Avenue of the Americas, New York, NY 10019, by telephone at (888) 827-7275 or by email at ol-prospectus-request@ubs.com; or Cantor Fitzgerald & Co., Attention: Capital Markets, 499 Park Avenue, 6th Floor, New York, New York 10022, or by email at prospectus@cantor.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 other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

About RAPT Therapeutics, Inc.

RAPT Therapeutics is a clinical stage immunology-based biopharmaceutical company focused on discovering, developing and commercializing oral small molecule therapies for patients with significant unmet needs in oncology and inflammatory diseases. Utilizing its proprietary discovery and development engine, the Company is developing highly selective small molecules designed to modulate the critical immune drivers underlying these diseases. RAPT has discovered and advanced two unique drug candidates, FLX475 and RPT193, each targeting C-C motif chemokine receptor 4, for the treatment of cancer and inflammation, respectively. The Company is also pursuing a range of targets, including general control nonderepressible 2 (GCN2) and hematopoietic progenitor kinase 1 (HPK1), that are in the discovery stage of development.

Media Contact:Angela Bittingmedia@rapt.com (925) 202-6211

Investor Contact:Sylvia Wheelerswheeler@wheelhouselsa.com