William Aliski

Mr. Aliski has served as a member of the X4 Board of Directors since September 2019. He has more than two decades of biopharmaceutical executive leadership experience at both public and private companies, with significant expertise in global rare disease commercialization, including a particular focus on commercial strategy, pricing, reimbursement and market access. Since 2011, Mr. Aliski has served as an independent consultant to life sciences companies focused on orphan diseases. Prior to 2011, he was Chief Commercial Officer for FoldRX Pharmaceuticals, an early stage company purchased by Pfizer in 2011, served as General Manager for Biomarin Europe, and held executive level positions at Transkaryotic Therapies (TKT)/Shire and Genzyme Corp.

Currently, Mr. Aliski serves as a member of the Boards of Directors of Ultragenyx Pharmaceutical Inc. and Applied Genetic Therapies Corporation. In addition to Mr. Aliski’s current Board appointments, he previously served on the Boards of Edimer Pharmaceuticals, a development stage company backed by Third Rock Ventures, and Scioderm Pharmaceuticals, Inc. (acquired in 2015 by Amicus Therapeutics). Mr. Aliski holds a Master of Public Administration from Harvard University and a Master of Social Planning from Boston College.