On June 12, 2019, Altimmune, Inc. announced the decision of the Board of Directors to appoint Mr. William Brown as Chief Financial Officer, effective June 1, 2019. Mr. Brown will continue to serve as the Company's principal financial officer and principal accounting officer. Mr. Brown, has served as the company's Acting Chief Financial Officer and Principal Accounting Officer since May 2018. Prior to that, Mr. Brown acted as an independent consultant to the Company since February 2018. Mr. Brown had been a consultant to several private and public companies in a variety of accounting and tax matters, both independently and as the managing partner of Redmont CPAs since October 2016. Prior to that, he was an audit manager at PricewaterhouseCoopers LLP in both Montgomery, Alabama (from June 2012 through July 2013) and Denver, Colorado (from November 2014 through September 2016). From August 2013 through October 2014, Mr. Brown was the Water Heater Division Controller at Rheem Manufacturing.