Heron Therapeutics, Inc. (NASDAQ:HRTX – Get Free Report) saw a significant increase in short interest in the month of May. As of May 15th, there was short interest totalling 30,270,000 shares, an increase of 10.9% from the April 30th total of 27,290,000 shares. Based on an average daily volume of 2,410,000 shares, the short-interest ratio […]