Lone Pine Capital; The Baupost Group; Adage Capital Management, L.P.; Elliott Management Corporation; Davidson Kempner Capital Management; Brevan Howard.
Pine River Capital Management L.P.; Canyon Capital Advisors LLC; Anchorage Capital Group, L.L.C; Bracebridge Capital; Lansdowne Partners.; Blue Mountain Capital Management; Discovery Capital Management LLC
Henderson AlphaGen.; Tudor Investment Corp.; Cevian Capital; CQS; Balyasny Asset Management L.P; Angelo, Gordon & Co.; JANA Partners LLC; Graham Capital Management; Golden Tree Asset Management, LP