| Name | Exchange | Symbol | Last trade | Change | Mkt cap | |
| Soros Fund Management LLC | Private | |||||
| Citadel Investment Group, L.L.C. | Private | |||||
| Clinton Group, Inc. | Private | |||||
| Tremont Group Holdings, Inc. | Private | |||||
| Pequot Capital Management, Inc. | Private | |||||
| Renaissance Technologies LLC | Private | |||||
| JWM Partners, LLC | Private | |||||
| Ardsley Partners | Private | |||||
| Elliott Management Corporation | Private | |||||
| D. E. Shaw & Co., L.P. | Private | |||||
| Hanseatic Group, Inc. | Private |