Jayson Donald Alexander Dallas M.D. — Chief Commercial Officer and Executive Vice President at Ultragenyx Pharmaceutical

Dr. Jayson Donald Alexander Dallas, M.D., has been the Chief Commercial Officer and Executive Vice President since August 3, 2015 and January 2016 respectively and served as its Senior Vice President since August 3, 2015 until January 2016. Dr. Dallas is responsible for building and leading an innovative global organization required for the successful commercialization of the company's products. He is responsible for the overall commercial operations, including sales, marketing, reimbursement and new product planning. He served as General Manager of Roche in the United Kingdom. Prior to this, at Genentech, he held two different positions as Head of Global Oncology Launch Excellence and Biosimilar Strategy and Head of Global Product Strategy for Immunology and Ophthalmology. Prior to Genentech, he worked at Novartis and Pharmacia in the US and at Roche in Switzerland. Over the course of his 21 year career in the industry, he has successfully overseen multiple product launches, internationally and in the US and has led numerous commercial organizations through periods of rapid growth. He worked in various medical functions within the industry and also as a practicing clinician. He has been an Independent Director of Arena Pharmaceuticals, Inc. since February 14, 2017. Dr. Dallas holds an MD from the University of the Witwatersrand, Johannesburg, South Africa and an MBA from Ashridge Business School in the UK.