Portrait of Leonard Schleifer

Rank #1589

Leonard Schleifer

Net worth $2.7B

Pharmaceuticals · United States

Born
Jul 07, 1952
Age
73
Source
Pharmaceuticals
Residence
Tarrytown, New York
Citizenship
United States
Marital status
Married
Children
3
Education
Bachelor of Arts/Science, Cornell University; Medical Doctor, University of Virginia; Ph.D, University of Virginia

Net worth over time

Biography

  • Leonard Schleifer cofounded drugmaker Regeneron in 1988, and remains CEO of the Tarrytown, New York-based company.
  • Schleifer took Regeneron public in 1991; he owns 2% of the company's common stock.
  • Sales of Regeneron's blockbuster drug Eylea, a treatment for macular degeneration, were $4.8 billion in the U.S. in 2024.
  • Regeneron has developed 12 FDA-approved medicines.
  • Schleifer attended Cornell on scholarship and dreamed of a medical career.
  • The son of a sweater manufacturer, Schleifer grew up in Queens, New York.

Financial assets

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