
Biogen Just Bet $5.6 Billion on a Part of Your Immune System You've Never Heard Of
Biogen is paying a 140% premium to acquire Apellis Pharmaceuticals in a $5.6 billion all-cash deal, its biggest acquisition in years. The move completes a three-year strategy to build a complement disease powerhouse, and it tells you everything about where big pharma thinks the future of immunology is headed.





















