Kronos Bio, Inc. announced the appointment of Marianne De Backer, Ph.D., to Board of Directors (the “Board”) as a Class I director with a term ending at annual meeting of stockholders to be held in 2021. Dr. De Backer was also appointed as a member of the Compensation Committee of the Board. Also on January 25, 2021, Rebecka Belldegrun, M.D. resigned from the Board. Dr. Belldegrun’s resignation was not the result of any disagreement with us on any matter related to the company's operations, policies or practices.