Leslie Dan

As of April 2021, he has an estimated net worth of $1.04 billion dollars (approximately $830 million USD), making him the 91st richest person in Canada.

In 1965, he founded Novopharm. In 2000 when he sold the company to Israel's Teva Pharmaceuticals for an estimated $430 million, it had sales of $750 million and employed 3,000 people. He then started a new company, Viventia (formerly Novopharm Biotech), which specializes in the discovery and development of products for the treatment of cancer. He is currently the chairman.

He married Judith in 1958. She died in 1995. They had three children, Dr. Michael D. Dan, Aubrey Dan, and Andrea Dan-Hytman. He married Anna in 1996. They share no children. Aubrey Dan is president of Dancap Private Equity and Andrea Dan-Hytman is co-owner of Viventia Biotech Inc.

Born in Budapest, Dan came to Canada in 1947. As a teenage Jew, he survived the Holocaust by using false identity papers. He came to Canada in 1947 and graduated from the University of Toronto School of Pharmacy in 1954 obtaining a Bachelor of Science degree. He completed his Master of Business Administration degree in 1959. In 1960, he founded a company which distributed over-the-counter drugs.

Leslie Lewis Dan, CM OOnt (born November 26, 1929), is a Canadian-Hungarian businessman and pharmacist. The founder of Novopharm, a successful generic pharmaceutical company which he subsequently sold to Teva Pharmaceuticals. A noted philanthropist, Dan has been awarded the prestigious Order of Canada and the Order of Ontario for his charitable efforts.