Longitude Capital Partners, Llc, Ten Percent Owner at Esperion, holds 2.32M shares in Collegium Pharmaceutical (Ticker: COLL), holds 28.19K shares in Esperion (Ticker: ESPR). Most recently, Longitude Capital Partners, Llc Sold ― shares of Collegium Pharmaceutical on Dec 12, 2017 for an estimated value of 17.34M.