Vir Biotechnology, Inc. (VIR) shares soared 6.9% in the last trading session to close at $6.05. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 8% gain over the past four weeks.The sudden rise in the stock price can be attributed to a positive investor mindset regarding the potential of the company’s pipeline candidate, tobevibart, which is in late-stage development for the treatment of patients with chronic hepatitis delta.This ...