Takeout rumors boost Biogen

Biogen Inc. (NASDAQ:BIIB) gained $28.28 to $330.11 after media reports said Tuesday that companies including Merck & Co. Inc. (NYSE:MRK) and Allergan plc (NYSE:AGN) have explored Biogen as a potential takeover target.

Merck declined to comment. Neither Biogen nor Allergan responded to inquiries. ...