Even priced at a bottom-of-range $20, shares of Vir Biotechnology Inc. (NASDAQ:VIR) fell 30% to $14.02 in the first day of trading after the infectious disease specialist priced a $142.9 million IPO, intended to back its development of medicines targeting hepatitis B virus, influenza A, HIV and tuberculosis. The company, led by former Biogen Inc. CEO George Scangos, is largely owned by Arch Venture Partners and Softbank's Vision Fund.