Ron Marchessault serves as Vice President, Head of Market Access at Madrigal Pharmaceuticals since October 2024. Previously, a significant leadership role was held at Sanofi Genzyme as Vice President, Head Market Access, Specialty Care, overseeing market access strategies for a diverse specialty portfolio, including Immunology and Rare Diseases. Additional roles at Sanofi Genzyme included Vice President, Value and Access for MS, Immunology, and Oncology. Earlier in their career, Ron held multiple vice president positions at Genzyme, focusing on patient and market access, corporate accounts, and managed markets. Ron's career began at Novartis Pharmaceuticals and Sandoz, where important roles in business development were undertaken. Ron holds a BBA in Marketing from the University of Massachusetts Amherst.