William Heiden

Mr. Heiden is an experienced pharmaceutical and biotechnology executive. He joined AMAG Pharmaceuticals, Inc. (AMAG) in May 2012 as president and chief executive officer. Mr. Heiden is also a member of AMAG’s board of directors. Prior to joining AMAG, Mr. Heiden served as president and chief executive officer of GTC Biotherapeutics, Inc. since June 2010. Prior to joining GTC Biotherapeutics, Mr. Heiden was the president and chief executive officer and a member of the board of directors of Elixir Pharmaceuticals, Inc., a pharmaceutical company, from September 2004 until December 2008.