Leonard Schleifer

CEO and Founder, Regeneron Pharmaceuticals

$2.25B

as of 04/27/25

About Leonard Schleifer

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, reached $5.7 billion in the U.S. in 2023.

Regeneron has developed 12 FDA-approved medicines.

Regeneron is working on antibody medicines to prevent and treat people with Covid-19.

Personal stats

Citizenship

United States of America

Source of wealth

Pharmaceuticals

Residence

Tarrytown, New York

Marital status

Married

Birth date

07/07/52 (age 72)

Number of children

Education

Bachelor of Arts/Science, Cornell University; Medical Doctor, University of Virginia; Ph.D, University of Virginia

Self-made

self-made