Apellis Pharmaceuticals
Biotechnology ResearchMassachusetts, United States501-1000 Employees
Apellis Pharmaceuticals is a biotechnology research company based in Waltham, Massachusetts. It is now part of Biogen. The organization has developed therapies for ocular and hematologic diseases, including Syfovre for geographic atrophy and Empaveli for paroxysmal nocturnal hemoglobinuria. In March 2026, Mikael Dolsten joined its Board of Directors. Its products address geographic atrophy and paroxysmal nocturnal hemoglobinuria, reflecting a focus in ophthalmology and hematology. Being part of Biogen situates the company within a larger biotechnology company network in the Boston area.