When did the merger between Biogen (BGEN) and IDEC Pharmaceuticals (IDPH) take place?
The merger between Biogen (BGEN) and IDEC Pharmaceuticals (IDPH) closed on November 12, 2003 to create Biogen Idec (BIIB) What were the terms of the merger? • Biogen shareholders (on record as of September 25, 2003) received 1.15 shares of Biogen Idec for each share they owned of Biogen • IDEC Pharmaceuticals shareholders will continue to own the same amount of shares in Biogen Idec 9.