On June 1, 2021, the Board of Directors of Exicure, Inc. (the “Company”) appointed Elias D. Papadimas as the Company’s Chief Accounting Officer, and designated Mr. Papadimas as the principal accounting officer of the Company. Mr. Papadimas joined the Company in April 2015 and most recently held the position of Vice President, Controller. Prior to joining the Company, Mr. Papadimas served as senior manager, technical accounting and external reporting at Beam Suntory from July 2011 to August 2014.