Leonard Schleifer

Leonard S. Schleifer (born 1953) is an American businessman and is the co-founder and chief executive of the biotechnology company Regeneron Pharmaceuticals.

Early life and education He was born and raised in a Jewish family, the son of Florence and Charles Baker Schleifer, in Queens, New York. His father was a sweater manufacturer and World War II codebreaker.

Eylea As CEO of Regeneron, Schleifer oversaw the "approval and growth of high-priced drugs." In 2011, Regeneron's first successful drug was Eylea for age-related macular degeneration. Regeneron's apparent privileged access of its experimental Covid-19 therapeutic to Donald Trump and members of the Trump administration drew criticism over ethical concerns.

Personal life He is married to Harriet (née Partel) Schleifer; they have two children, Adam and David. Harriet has an undergraduate degree from Cornell University, two graduate degrees in education from the University of Virginia and a J.D. degree from St. John's University School of Law.

Schleifer has known U.S. President Donald Trump for some years, as he was a member of Trump’s golf club in Westchester County, New York.

His son Adam was one of many candidates for the nomination in the 2020 Democratic Primary for New York's 17th congressional district.