Jeff Aronin is a Chicago-based angel investor and biotech entrepreneur who backs U.S. healthcare and life sciences companies, with activity spanning early-stage and later-stage venture. Founder, chairman and CEO of Paragon Biosciences, he focuses on biology-based businesses addressing unmet medical needs across biotechnology, pharmaceuticals and HealthTech. Through Paragon and partners, he has invested billions in areas including cell and gene therapy, biology engineering and advanced biotech, with portfolio-building experience across companies such as Harmony Biosciences, Emalex Biosciences and Evozyne.