| Gupta Wealth Management LLC | -- | Mar 31, 16 | -269 | -- |
| RUSSELL FRANK CO/ | -- | Mar 31, 16 | -18.84K | -- |
| BHF Kleinwort Benson Group S.A. | -- | Mar 31, 16 | -10.59K | -- |
| LG Capital Management, LP | 18.88K | Dec 31, 15 | -128.42K | -- |
| Sandell Investment Services LLC | 18.40K | Dec 31, 15 | +18.40K | -- |
| Ada Investment Management, LP | -- | Dec 31, 15 | -5.66K | -- |
| KS MANAGEMENT CORP | -- | Dec 31, 15 | -49.50K | -- |
| OFI Advisors LLC | 3.56K | Sep 30, 15 | -508 | -- |
| Index Management Solutions, LLC | -- | Sep 30, 15 | -1.10K | -- |
| MANAGED ACCOUNT ADVISORS LLC | 318.26K | Jun 30, 15 | +27.75K | -- |
| Placemark Investments, Inc. | 16.12K | Dec 31, 14 | -6.43K | -- |
| Alpine Partners USVI, LLC | 5.95K | Dec 31, 14 | +5.95K | -- |
| MUNDER CAPITAL MANAGEMENT | 1.70M | Sep 30, 14 | -17.65K | -- |
| UBS AG | 28.11K | Sep 30, 14 | +2.64K | -- |
| SEI TRUST CO | 26.60K | Sep 30, 14 | -5.78K | -- |
| 1919 Investment Counsel, LLC | -- | Sep 30, 14 | -745 | -- |
| Stux Capital Management, LLC | 8.00K | Jun 30, 14 | +8.00K | -- |
| Wilmington Funds Management Corp | 5.95K | Jun 30, 14 | +1.90K | -- |
| SAC Capital Advisors LP | 10.58K | Mar 31, 14 | +4.13K | -- |
| Winton Capital Management Ltd | 9.05K | Mar 31, 14 | -937 | -- |
| Jane Street Holding, LLC | -- | Dec 31, 13 | -17.67K | -- |
| Irish Life Investment Managers Ltd. | 3.83K | Jun 30, 13 | +1.30K | -- |
| KNIGHT CAPITAL GROUP LLC | -- | Jun 30, 13 | -10.32K | -- |
| MANULIFE INVESTMENT MANAGEMENT (US) LLC | 49.83K | Mar 31, 13 | +1.96K | -- |
| Manulife Investment Management (North America) Ltd | 36.40K | Mar 31, 13 | +1.48K | -- |
| abrdn Inc. | 1.56M | Dec 31, 10 | +1.56M | -- |
| VALUE LINE INC | 103.00K | Sep 30, 10 | -2.50K | -- |
| LEHMAN BROTHERS HOLDINGS INC. PLAN TRUST | 135.73K | Jun 30, 08 | -56.30K | -- |