Astellas Pharma Inc. (OTCMKTS:ALPMY – Get Free Report) was the recipient of a significant increase in short interest in the month of December. As of December 31st, there was short interest totalling 159,100 shares, an increase of 305.9% from the December 15th total of 39,200 shares. Based on an average trading volume of 554,500 shares, […]