Seth Klarman. Gurufocus

Seth Klarman, the billionaire value investor, has amassed large stakes in Bellatrix Exploration Ltd (NYSE: BXE) and Sunedison Semiconductor Ltd (NASDAQ: SEMI), according to GuruFocus. Klarman amounted an 11.4 percent stake in Bellatrix Exploration and a 9.99 percent stake in Sunedison...