| Cerebellum GP, LLC | -- | Sep 30, 20 | -2.17K | -- |
| Kaizen Advisory, LLC | -- | Dec 31, 18 | -13.40K | -- |
| KHP Capital, LLC | 100 | Sep 30, 18 | -- | -- |
| Mobius Capital Management, LLC | -- | Sep 30, 18 | -33.22K | -- |
| THREE BAYS CAPITAL LP | -- | Sep 30, 18 | -774.20K | -- |
| Global X Management CO LLC | 13.46K | Jun 30, 18 | -897 | -- |
| INTEGRAL DERIVATIVES, LLC | 8.07K | Mar 31, 18 | +2.80K | -- |
| Delpha Capital Management, LLC | -- | Mar 31, 18 | -571 | -- |
| GLG LLC | 40.00K | Dec 31, 17 | -92.94K | -- |
| BB&T INVESTMENT SERVICES, INC. | 1.87K | Dec 31, 17 | +117 | -- |
| HUTCHENS INVESTMENT MANAGEMENT INC | -- | Dec 31, 17 | -- | -- |
| GLG Partners LP | -- | Dec 31, 17 | -7.27K | -- |
| SPOT TRADING L.L.C. | 16.11K | Sep 30, 17 | +7.78K | -- |
| AMERICAFIRST CAPITAL MANAGEMENT, LLC | -- | Sep 30, 17 | -25.02K | -- |
| AmericaFirst Quantitative Trust - AmericaFirst Defensive Growth & Income Portfolio, Series 2 | 25.02K | Jun 30, 17 | +25.02K | -- |
| Virtu KCG Holdings LLC | 19.13K | Jun 30, 17 | -211 | -- |
| Commonwealth Equity Services, Inc | 13.40K | Jun 30, 17 | -78 | -- |
| CAPSTONE ASSET MANAGEMENT CO | 8.92K | Jun 30, 17 | +340 | -- |
| Independent Portfolio Consultants, Inc. | 1.14K | Jun 30, 17 | -85 | -- |
| WFG Advisors, LP | -- | Jun 30, 17 | -64 | -- |
| Airain ltd | -- | Jun 30, 17 | -34.85K | -- |
| IRONBRIDGE CAPITAL MANAGEMENT LP | 287.74K | Mar 31, 17 | -32.57K | -- |
| JANUS HENDERSON INVESTORS US LLC | 56.00K | Mar 31, 17 | +21.10K | -- |
| R&F Capital Advisors LP | 7.93K | Mar 31, 17 | +7.93K | -- |
| EDGE ASSET MANAGEMENT, INC | -- | Mar 31, 17 | -202.99K | -- |
| BlackRock Fund Advisors | 4.00M | Dec 31, 16 | +333.03K | -- |
| BlackRock Institutional Trust Company, N.A. | 3.19M | Dec 31, 16 | +259.77K | -- |
| BLACKROCK ADVISORS LLC | 803.92K | Dec 31, 16 | -87.41K | -- |
| BlackRock Investment Management, LLC | 405.51K | Dec 31, 16 | +28.66K | -- |
| BlackRock Group LTD | 366.60K | Dec 31, 16 | +74.17K | -- |
| KEELEY ASSET MANAGEMENT CORP | 173.79K | Dec 31, 16 | -9.31K | -- |
| STEADFAST ADVISORS LP | 69.71K | Dec 31, 16 | -34.34K | -- |
| BlackRock Japan Co. Ltd | 12.48K | Dec 31, 16 | +10.82K | -- |
| CenterStar Fund, LLC | 1.00K | Dec 31, 16 | +1.00K | -- |
| MSI Financial Services Inc | 924 | Dec 31, 16 | -- | -- |
| KANALY TRUST CO | 42 | Dec 31, 16 | -- | -- |
| Bocage Capital, LLC | -- | Dec 31, 16 | -130.39K | -- |
| Vollero Beach Capital Partners LLC | 129.30K | Sep 30, 16 | +31.21K | -- |
| Emerald Acquisition Ltd. | 73.18K | Sep 30, 16 | +5.62K | -- |
| RS INVESTMENT MANAGEMENT CO LLC | 784.57K | Jun 30, 16 | -36.52K | -- |
| SOCIETE GENERALE | 22.18K | Jun 30, 16 | +22.18K | -- |
| RUSSELL FRANK CO/ | 59.97K | Mar 31, 16 | +6.58K | -- |
| BIP GP LLC | 30.00K | Mar 31, 16 | +30.00K | -- |
| VIRGINIA RETIREMENT SYSTEM | 25.60K | Mar 31, 16 | +25.60K | -- |
| SIMMONS FIRST TRUST CO NA | 6.00K | Dec 31, 15 | -- | -- |
| OFI Advisors LLC | 3.73K | Sep 30, 15 | +543 | -- |
| Index Management Solutions, LLC | 74 | Sep 30, 15 | -5 | -- |
| Absolute Return Capital, LLC | -- | Sep 30, 15 | -5.99K | -- |
| DECADE CAPITAL MANAGEMENT LLC | -- | Sep 30, 15 | -64.05K | -- |
| MANAGED ACCOUNT ADVISORS LLC | 291.33K | Jun 30, 15 | +52.01K | -- |
| RQSI Ltd | -- | Jun 30, 15 | -6.36K | -- |
| BOSTON PRIVATE BANK & TRUST CO | 12 | Mar 31, 15 | -- | -- |
| Placemark Investments, Inc. | 10.27K | Dec 31, 14 | +3.56K | -- |
| Nexus Asset Management LLC | 270.10K | Sep 30, 14 | +203.26K | -- |
| QS BATTERYMARCH FINANCIAL MANAGEMENT, INC | 193.29K | Sep 30, 14 | -1.15K | -- |
| UBS AG | 48.28K | Sep 30, 14 | +285 | -- |
| SEI TRUST CO | 18.14K | Sep 30, 14 | -7.90K | -- |
| Tradeworx Inc. | -- | Sep 30, 14 | -2.65K | -- |
| BlueCrest Capital Management LLP | -- | Sep 30, 14 | -36.78K | -- |
| Man Investments Ltd | 8.34K | Jun 30, 14 | +8.34K | -- |
| SAC Capital Advisors LP | 18.75K | Mar 31, 14 | +12.85K | -- |
| Winton Capital Management Ltd | 15.67K | Mar 31, 14 | +9.22K | -- |
| GLG INC. | 7.04K | Dec 31, 13 | -- | -- |
| Daiwa Capital Markets America Inc. | 2.10K | Dec 31, 13 | +2.10K | -- |
| NORTHERN TRUST CO OF CONNECTICUT | -- | Dec 31, 13 | -6.96K | -- |
| Jane Street Holding, LLC | -- | Dec 31, 13 | -26.51K | -- |
| STIFEL NICOLAUS & CO INC \MO\ | 5.74K | Sep 30, 13 | -300 | -- |
| KNIGHT CAPITAL GROUP LLC | 20.30K | Jun 30, 13 | +20.30K | -- |
| Irish Life Investment Managers Ltd. | 7.49K | Jun 30, 13 | -- | -- |
| MANULIFE INVESTMENT MANAGEMENT (US) LLC | 53.21K | Mar 31, 13 | +3.02K | -- |
| Manulife Investment Management (North America) Ltd | 38.17K | Mar 31, 13 | +1.60K | -- |
| First Allied Securities, Inc. | 714 | Jun 30, 12 | -- | -- |
| AUSTIN CALVERT & FLAVIN INC | 100 | Dec 31, 11 | -- | -- |
| Boston Trust Walden Co | -- | Dec 31, 11 | -2.52K | -- |
| SUMITOMO MITSUI TRUST BANK Ltd | 102.99K | Mar 31, 11 | +41.35K | -- |
| NOLLENBERGER CAPITAL PARTNERS INC | 270 | Dec 31, 10 | +270 | -- |
| VALUE LINE INC | 6.00K | Sep 30, 10 | -4.00K | -- |
| GUGGENHEIM FUNDS INVESTMENT ADVISORS, LLC | 19.01K | Jun 30, 10 | -2.25K | -- |
| LEHMAN BROTHERS HOLDINGS INC. PLAN TRUST | 24.79K | Jun 30, 08 | -44.79K | -- |
| RBC CMA LLC | -- | Jun 30, 06 | -2.79K | -- |
| FEDERATED MDTA LLC | -- | Jun 30, 06 | -12.20K | -- |
| Arlington Asset Investment Corp. | 79.33K | Dec 31, 05 | +79.33K | -- |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 193.11K | Dec 31, 04 | +129.41K | -- |
| PRINCIPAL GLOBAL INVESTORS | 185.27K | Sep 30, 01 | +107.55K | -- |
| PRINCIPAL LIFE INSURANCE CO | 185.27K | Sep 30, 01 | +107.55K | -- |
| PRUDENTIAL INSURANCE CO OF AMERICA | 109.40K | Sep 30, 01 | +3.60K | -- |
| RBC Capital Markets, LLC | 3.00K | Mar 31, 01 | +3.00K | -- |