Rigel Pharmaceuticals Inc $4,407,795 Somaxon Pharmaceuticals, Inc. $0 Oxford Immunotec Global Plc $49,199,920 Sientra, Inc. $65,811 Rigel Pharmaceuticals Inc $4,407,795 Somaxon Pharmaceuticals, Inc. $0 Oxford Immunotec Global Plc $49,199,920 Sientra, Inc. $65,811