Meet Leonard S. Schleifer, Regeneron CMO

Bio, work history, education & how to reach out.

Leonard S. Schleifer

Job Title

CMO at Regeneron

Contact Information

*******@regeneron.com

+1 **********

Last updated: 2026-03-03

Who is Leonard S. Schleifer?

Leonard S. Schleifer, MD, PhD, is the co-chair, president, and CEO of Regeneron Pharmaceuticals. He has been a key figure in the company's founding and growth since 1988, focusing on innovative biotech solutions.

Leonard S. Schleifer's Work History

Len Schleifer has a long-standing career in biotech and medicine, leading Regeneron to become a top global pharmaceutical company. His work centers on science-driven drug development and corporate leadership.

  • 1988 — Co-Founder, President, and Chief Executive Officer, Regeneron Pharmaceuticals

Leonard S. Schleifer's Education

Len Schleifer earned his MD and PhD in pharmacology from the University of Virginia and is a licensed neurologist. He also holds a Bachelor of Arts from Cornell University.

  • University of Virginia — MD and PhD in Pharmacology (Unknown - Unknown)
  • Cornell University — Bachelor of Arts (Unknown - Unknown)

How to Reach Leonard S. Schleifer?

You can reach Leonard S. Schleifer at *******@regeneron.com or by calling +1 **********. To get Leonard S. Schleifer's contact information and other B2B leads like this, sign up for a free account at Anybody.com.

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