Alexion Pharmaceuticals has expanded its executive leadership team through several appointments and promotions. Stephen Squinto, Ph.D., co-founder of Alexion, is being promoted to the newly created position of executive vice president, chief global operations officer. Martin Mackay, Ph.D. has been named executive vice president, global head of R&D. Saqib Islam, J.D. has been named senior vice president, chief strategy and portfolio officer. All three executives will report directly to Leonar...