Sian Ratcliffe

Sian Ratcliffe has vast experience in the pharmaceutical industry, having held various high-level positions at Pfizer for over two decades before moving to Biogen. With a strong educational background including a PhD in Pharmacology from University of Cambridge, Sian currently serves as the SVP, Head of Quantitative Sciences & Development Operations at Biogen. Sian's role involves overseeing a wide range of functions including biostatistics, data sciences, clinical trial operations, and strategic performance management. Overall, Sian Ratcliffe is a seasoned professional with a diverse skill set and a proven track record in the healthcare sector.