Mr. Sibold has more than 30 years of experience in the biopharmaceutical industry. Prior to joining Madrigal, he served as Executive Vice President, Specialty Care of Sanofi and President, Sanofi North America, where he led a global organization of approximately 10,000 employees across five specialty therapeutic areas and served as a member of the Sanofi Executive Committee. Previously, Mr. Sibold served as Chief Commercial Officer of Avanir Pharmaceuticals, and Senior Vice President U.S. Commercial for Biogen. He also served on the Executive Committee of BIO.