Mirum Pharmaceuticals, Inc. (MIRM) shares rallied 27.3% in the last trading session to close at $33. This move can be attributable to notable volume with a higher number of shares being traded than in a typical session. This compares to the stock's 7.7% gain over the past four weeks.Shares of the company rallied, driven by optimism over the announcement of the positive interim data from two phase IIb studies evaluating volixibat in patients with primary biliary cholangitis and primary sclerosing cholangitis ...