Sanofi SA

Sanofi is a French pharmaceutical company that develops and sells prescription drugs, with its strongest positions in immunology, vaccines, and rare diseases. Its top product, Dupixent (an antibody treatment for conditions like eczema and asthma), generates over 30% of total revenue — profits from it are split with Regeneron, which co-developed it. The rest of the portfolio includes vaccines (sold through its Sanofi Pasteur unit) and specialty drugs for rare conditions. Customers are patients and healthcare systems globally, with the U.S. (~45% of revenue), Europe (~20%), and China (~6%) as the main markets. Revenue comes from drug sales; Dupixent's continued growth is the dominant financial driver.