REGN

Regeneron Pharmaceuticals, Inc.

A fully integrated biotech that discovers and manufactures medicines for serious diseases, best known for EYLEA (for retinal conditions), Dupixent (for allergic and inflammatory diseases), and cancer drug Libtayo. Founded in 1988 by neurologist Leonard Schleifer and scientist George Yancopoulos, the company got its name by blending "regenerating neurons" with "gene" — reflecting its early dream of rebuilding damaged brain cells. It now grows drug-making cells in huge bioreactors at sites in New York and Ireland, and taps its own genetics center to find new drug targets.