X0206 3 2019-07-19 0 0001615219 Salarius Pharmaceuticals, Inc. SLRX 0001769331 Arthur David J. C/O SALARIUS PHARMACEUTICALS, INC. 2450 HOLCOMBE BLVD., SUITE J-608 HOUSTON TX 77021 1 1 0 0 Chief Executive Officer Common Stock 79371 D Received in connection with the Issuer's business combination (the "Merger") with Salarius Pharmaceuticals, LLC ("Private Salarius") in accordance with the terms of the Agreement and Plan of Merger dated as of January 3, 2019 and amended on June 27, 2019, by and among Issuer, Falcon Acquisition Sub, LLC and Private Salarius, in exchange for 79,371 shares of common stock of Private Salarius. 4,783 shares of the Common Stock are restricted stock. Exhibit List: Exhibit 24 - Power of Attorney /s/ David J. Arthur 2019-07-23