Our Leadership

Sanofi Genzyme is the specialty care global business unit of Sanofi focused in the areas of rare diseases, rare blood disorders, multiple sclerosis, oncology, and immunology. Learn more about the Executive Committee that governs us, Sanofi’s Executive Committee.

Bill Sibold photo
Bill Sibold, Executive Vice President and Head of Sanofi Genzyme
“We have to be focused on the science, focused on the patients—that is the core of what we do. If we do that right, we can ultimately be successful.”
Photo of Manuela Buxo

Manuela Buxo

Head of Europe
Photo of Charles Castano
Charles Castano
Global Digital Head
Photo of Aimee Christian
Aimee Christian
Global Communications Head
Photo of Adam Gluck

Adam Gluck

Head of Sanofi U.S. and Sanofi Genzyme Corporate Affairs
Photo of Nathalie Grenache
Nathalie Grenache
Head of Human Resources
Photo of Carole Huntsman

Carole Huntsman

Head, Sanofi Genzyme North America and U.S. Country Lead
Photo of Michael Joachim

Michael Joachim

Head of Ethics & Business Integrity, Specialty Care
Photo of David Khougazian

David Khougazian

Head of International & China
Joann Nestor photo
Joann Nestor
Head of Legal
Brendan O’Callaghan photo
Brendan O’Callaghan
Senior Vice President for Biologics within Industrial Affairs and Business Partner
Shannon Resetich
Global Franchise Head, Rare Disease
Sandeep Sahney photo
Sandeep Sahney
Head of Japan & Pacific Region
Martin Sambade leadership photo
Martin Sambade
Information Solutions Global Business Partner
Philippe Sauvage photo
Philippe Sauvage
Global Head, Operations and Access
Photo of Tom Snow
Tom Snow
Global Franchise Head, Neurology & Immunology
Rand Sutherland
Rand Sutherland
Global Medical Head

Mark Underwood

Head of Planning and Operations
Photo of Thierry Vernier
Thierry Vernier
Global Head of Finance for Sanofi Genzyme and CFO for North America
Photo of Vanessa Wolfeler
Vanessa Wolfeler
Global Franchise Head, Rare Blood Disorders
Photo of Alexander Zehnder
Alexander Zehnder
Global Franchise Head, Oncology

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