Atlantic Capital Bancshares, Inc. (“Atlantic Capital”), the parent company of Atlantic Capital Bank, N.A., has announced that D. Michael Kramer has tendered his resignation as President and Chief Operating Officer of Atlantic Capital and Atlantic Capital Bank, effective December 22, 2017. Douglas L. Williams, current Chief Executive Officer, has been appointed to serve as President of Atlantic Capital and Atlantic Capital Bank, effective December 22, 2017, and will continue to serve as Chief Executive Officer. Mr. Williams served as President prior to the merger with First Security Group, Inc. in October, 2015. Mr. Kramer has also resigned from the Board of Directors of Atlantic Capital, effective October 31, 2017. In connection with Mr. Kramer’s resignation, the Board of Directors reduced the size of the Board from 11 to 10, effective October 31, 2017.