Short interest in Apellis Pharmaceuticals Inc (NASDAQ:APLS) increased during the last reporting period, rising from 17.06M to 17.34M. This put 19.09% of the company's publicly available shares short.

Short interest in Apellis Pharmaceuticals Corp (XNAS:APLS) decreased during the last reporting period, falling from 280.30M to 275.20M. This put 1.17% of the company's publicly available shares short.

Based on the recent average volume of 1.44M shares traded per day, it would take 12.04 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.