Corporate Governance

Guy Macdonald B.Sc.


Guy Macdonald has served as Tetraphase's President and CEO since January 2008. He has enjoyed a successful 25-year career in global pharmaceutical and biotechnology. Prior to joining Tetraphase, he was Executive Vice President, Operations, Idenix Pharmaceuticals where he played the lead role in developing the commercial organization in the U.S. and top five EU countries and was responsible for Regulatory Affairs, Quality Assurance, Manufacturing, Information Technology and Project Management. Mr. Macdonald previously spent 22 years at Merck & Co., Inc., initially in the UK, followed by senior positions in the U.S., culminating as the Vice President for Anti-infective and Hospital Products with sales of more than $1.4 billion. At Merck, Mr. Macdonald had a distinguished career as a senior leader in the areas of virology and anti-infectives, which included a number of landmark product launches at a global level. Mr. Macdonald currently serves as Chairman of the board of directors of Scynexis, Inc. Mr. Macdonald received an Honours Degree in Biochemistry from Dundee University, Dundee, Scotland.

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