Moleculin Biotech, Inc. (NASDAQ:MBRX – Get Free Report) saw a significant drop in short interest during the month of May. As of May 31st, there was short interest totalling 21,100 shares, a drop of 38.3% from the May 15th total of 34,200 shares. Based on an average daily volume of 40,200 shares, the days-to-cover ratio […]