Toby Ferguson has been Chief Medical Officer at Voyager since joining the company in 2024. Dr Ferguson held positions of increasing responsibility at Biogen, most recently serving as Vice President, Head of Neuromuscular Development Unit. During his tenure, he built and developed teams focused on neuromuscular and movement disorders, overseeing strategy for these areas across Biogen R&D. Notably, he led the team that developed QALSODY® (tofersen), the first genetically targeted therapy for SOD1 amyotrophic lateral sclerosis (ALS); this therapeutic received the first accelerated approval based on reduction of neurofilament, a surrogate biomarker pioneered by Ferguson, his team, and the broader ALS community. Overall, his teams at Biogen were responsible for nine successfully executed INDs and three proof-of-concept clinical trials and filings. Prior to joining Biogen, Dr Ferguson was Assistant Professor of Neurology, Shriners Pediatric Research Center and Temple University School of Medicine. He received his MD and PhD from University of Florida College of Medicine and his BS from University of Florida, Gainesville. He also completed a residency in neurology and a neuromuscular fellowship at the University of Pennsylvania.