Biogen Cancels Out Of Citigroup Conference Following Weeks Of Rumors By: Benzinga via Benzinga August 11, 2016 at 15:02 PM EDT Biogen Inc (NASDAQ: BIIB) continues to dominate the biotech M&A rumor mill this month. On Thursday afternoon, chatter spread that ... Read More >> Related Stocks: Allergan Plc Biogen Idec Johnson & Johnson Macy's Merck & Co Pfizer