Short interest in Alkermes PLC (NASDAQ:ALKS) decreased during the last reporting period, falling from 16.56M to 13.71M. This put 12.64% of the company's publicly available shares short.

Short interest for Alkermes gives investors a sense of the degree to which investors are betting on the decline of Alkermes's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 1.49M shares traded per day, it would take 9.17 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.