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William Sibold

Current Role(s): Senior Vice President; Head of Multiple Sclerosis

Joined Genzyme: 2011

Bill Sibold is responsible for Genzyme’s Multiple Sclerosis franchise as the company prepares to launch two products.

Prior experience:

  • Senior Vice President and Chief Commercial Officer, Avanir Pharmaceuticals
  • President and Chief Executive Officer, Lycera Corporation
  • Senior Vice President of U.S. Commercial and various leadership positions for MS products, Biogen Idec


  • M.B.A., Harvard University
  • B.A., Yale University
Last Updated: 2/18/2015