Executive Committee

Bill Sibold

Executive Vice President, Sanofi Genzyme

Portrait of Bill Sibold


Bill Sibold holds an MBA from Harvard Business School and a BA in Molecular Biophysics and Biochemistry from Yale University.

He has more than twenty-five years of experience in the biopharmaceutical industry since starting his career with Eli Lilly. He held a number of leadership positions within Biogen, including driving their U.S. commercial operations in neurology, oncology and rheumatology and general management of Biogen’s Australian and Asia-Pacific business. In addition to his time with Biogen, Mr. Sibold also served as the chief commercial officer of Avanir Pharmaceuticals.

Bill Sibold joined Sanofi in late 2011 as head of the MS franchise where he oversaw the successful launches of Aubagio® and Lemtrada®. He most recently served as head of Sanofi Genzyme’s Global Multiple Sclerosis, Oncology and Immunology organization, a position he held since January 2016 and where he led preparation for the global launches of Dupilumab and Sarilumab.

He was appointed to his present position in July 2017.

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