Hedge Fund and Insider Trading News: David Einhorn, Marshall Wace LLP, Ra Pharmaceuticals Inc (RARX), PLx Pharma Inc (PLXP), Opko Health Inc. (OPK), and More

David Einhorn closed out 2018 with his biggest annual loss ever for the 22-year-old Greenlight Capital. The firm’s main hedge fund fell 9 percent in December, extending this year’s decline to 34 percent...... (read more)