Guy Macdonald << Back

Mr. Macdonald joined our board in November 2014 and became Chairman in June 2015. He is the President and Chief Executive Officer and a member of the board of directors of Tetraphase Pharmaceuticals, Inc. (NASDAQ:TTPH) since January 2008. From August 2003 until January 2008, Mr. Macdonald served as Executive Vice President of Operations of Idenix Pharmaceuticals, Inc. (NASDAQ:IDIX), a biopharmaceutical company. From 1981 to 2003 he served in various positions at Merck & Co., Inc. (NYSE: MRK), most recently serving as the Vice President for Anti-Infective and Hospital Products. Mr. Macdonald received an Honours Degree in biochemistry from Dundee University in Dundee, Scotland.