Blueprint Medicines Co. (NASDAQ:BPMC – Get Rating) was the recipient of a large decrease in short interest in April. As of April 30th, there was short interest totalling 3,800,000 shares, a decrease of 11.8% from the April 15th total of 4,310,000 shares. Based on an average daily volume of 596,800 shares, the days-to-cover ratio is […]