On and effective as of January 20, 2016, NantKwest, Inc. appointed Richard J. Tajak as the company's interim Chief Financial Officer, replacing Angela Wilson who resigned on January 19, 2016 for personal reasons. Mr. Tajak will serve as the interim Chief Financial Officer pursuant to the Shared Services Agreement between the Company and NantWorks, LLC under which the Company will pay NantWorks for a portion of Mr. Tajak's salary at cost (without any markup), depending on the percentage of time he devotes to the Company, plus a reasonable allocation for indirect costs that relate to him in providing the services. Richard Tajak, has served as Chief Financial Officer of NantPharma, LLC.