Bristol-Myers Squibb will buy Amylin Pharmaceuticals for approximately $5.3 billion. BMS will also take on $1.7 billion in Amylin’s net debt and a contractual payment obligation to Lilly, making a total transaction of $7 billion. Amylin’s primary focus is on the research, development and commercialization of a franchise of GLP-1 agonists, for the treatment of type 2 diabetes. BMS’ buyout price rose 41% from its initial bid earlier this year. Once the deal is complete, AstraZeneca will pay...