Digimarc Co. (NASDAQ:DMRC – Get Free Report) was the recipient of a large decrease in short interest during the month of April. As of April 30th, there was short interest totalling 2,230,000 shares, a decrease of 7.1% from the April 15th total of 2,400,000 shares. Currently, 15.3% of the shares of the company are short […]