| RESOURCE AMERICA, INC. | -- | Sep 30, 20 | -16.26K | -- |
| JUMP TRADING, LLC | 27.79K | Jun 30, 20 | +27.79K | -- |
| SCHNEIDER CAPITAL MANAGEMENT CORP | -- | Mar 31, 20 | -2.43M | -- |
| Advisor Group, Inc. | 39.26K | Dec 31, 19 | +15.94K | -- |
| LADENBURG THALMANN FINANCIAL SERVICES INC. | 23.31K | Dec 31, 19 | -293 | -- |
| Neuburgh Advisers LLC | 36.41K | Sep 30, 19 | +9.72K | -- |
| Flinton Capital Management LLC | 29.99K | Sep 30, 19 | +8.01K | -- |
| Tyers Asset Management LLC | 23.56K | Sep 30, 19 | +6.29K | -- |
| RIVERHEAD CAPITAL MANAGEMENT LLC | 18.90K | Sep 30, 19 | +5.10K | -- |
| Glen Harbor Capital Management LLC | 17.14K | Sep 30, 19 | +4.58K | -- |
| Columbia Pacific Advisors, LLC | -- | Sep 30, 19 | -74.74K | -- |
| Phoenix Investment Adviser LLC | -- | Sep 30, 19 | -4.00K | -- |
| BROADVIEW ADVISORS LLC | 85.45K | Jun 30, 19 | +3.73K | -- |
| TIAA CREF INVESTMENT MANAGEMENT LLC | 130.78K | Mar 31, 19 | -95.19K | -- |
| TEACHERS ADVISORS, LLC | 105.72K | Mar 31, 19 | -95.95K | -- |
| Jump Trading, LLC | 10.17K | Mar 31, 19 | +10.17K | -- |
| NEXT Financial Holdings | 79 | Mar 31, 19 | +79 | -- |
| OppenheimerFunds, Inc. | -- | Mar 31, 19 | -16.37K | -- |
| DFT Energy LP | 240.00K | Dec 31, 18 | -300.00K | -- |
| Piermont Capital Management Inc. | 80.27K | Dec 31, 18 | +80.27K | -- |
| Sapphire Star Partners LP | -- | Dec 31, 18 | -7.00K | -- |
| Pomelo Capital LLC | 20.55K | Sep 30, 18 | -- | -- |
| Brenham Capital Management, L.P. | -- | Sep 30, 18 | -1.50M | -- |
| Mobius Capital Management, LLC | -- | Sep 30, 18 | -17.78K | -- |
| PEAK6 Group LLC | 10.54K | Jun 30, 18 | +10.54K | -- |
| Edge Advisors, LLC | 125 | Jun 30, 18 | -- | -- |
| Numeric Investors LLC | 1.72M | Dec 31, 17 | -7.62M | -- |
| Texan Capital Management | 7.68K | Dec 31, 17 | -23.71K | -- |
| NATIONAL PLANNING CORP | -- | Dec 31, 17 | -79.13K | -- |
| INVESTMENT CENTERS OF AMERICA INC | -- | Dec 31, 17 | -35.80K | -- |
| Hutchin Hill Capital, LP | -- | Dec 31, 17 | -100.00K | -- |
| SPOT TRADING L.L.C. | 43.23K | Sep 30, 17 | -7.33K | -- |
| PRIVATE CAPITAL MANAGEMENT INC | 25.00K | Sep 30, 17 | -- | -- |
| CARL DOMINO INC | -- | Sep 30, 17 | -33.00K | -- |
| COASTLAND CAPITAL LLC | -- | Sep 30, 17 | -195.00K | -- |
| Virtu KCG Holdings LLC | 307.73K | Jun 30, 17 | +242.43K | -- |
| Commonwealth Equity Services, Inc | 44.05K | Jun 30, 17 | +10.34K | -- |
| Airain ltd | -- | Jun 30, 17 | -56.22K | -- |
| Century Capital Management, LLC | -- | Jun 30, 17 | -45.13K | -- |
| Perkins Investment Management, LLC | 1.77M | Mar 31, 17 | -1.57M | -- |
| Spot Trading L.L.C | 38.51K | Mar 31, 17 | +38.51K | -- |
| FIRST FINANCIAL EQUITY CORPORATION | 30.24K | Mar 31, 17 | +30.24K | -- |
| CT Financial Advisors LLC | 1.00K | Mar 31, 17 | -- | -- |
| JANUS HENDERSON INVESTORS US LLC | -- | Mar 31, 17 | -6.30K | -- |
| R&F Capital Advisors LP | -- | Mar 31, 17 | -12.97K | -- |
| BlackRock Institutional Trust Company, N.A. | 7.51M | Dec 31, 16 | +127.06K | -- |
| BlackRock Fund Advisors | 2.91M | Dec 31, 16 | +163.35K | -- |
| BLACKROCK ADVISORS LLC | 1.49M | Dec 31, 16 | +40.95K | -- |
| BlackRock Group LTD | 891.32K | Dec 31, 16 | +44.60K | -- |
| BlackRock Investment Management, LLC | 606.38K | Dec 31, 16 | -183 | -- |
| BlackRock Japan Co. Ltd | 63.57K | Dec 31, 16 | +23.48K | -- |
| MSI Financial Services Inc | 26.50K | Dec 31, 16 | +20.78K | -- |
| KANALY TRUST CO | 144 | Dec 31, 16 | -- | -- |
| EDMOND DE ROTHSCHILD ASSET MANAGEMENT (FRANCE) | 2.30M | Sep 30, 16 | +393.50K | -- |
| Emerald Acquisition Ltd. | 91.00K | Sep 30, 16 | -124.92K | -- |
| WESTPORT RESOURCES MANAGEMENT INC | 426 | Sep 30, 16 | -400 | -- |
| Keane Capital Partners, LLC | -- | Sep 30, 16 | -40.00K | -- |
| Visium Asset Management, LP | -- | Sep 30, 16 | -289.20K | -- |
| Visium Asset Management, LP | 289.20K | Jun 30, 16 | +289.20K | -- |
| NEWGATE CAPITAL MANAGEMENT LLC | 14.82K | Jun 30, 16 | +14.82K | -- |
| Investors Capital Advisory Services | 12.29K | Jun 30, 16 | +12.29K | -- |
| Silver Rock Financial LLC | -- | Jun 30, 16 | -3.38K | -- |
| RUSSELL FRANK CO/ | 41.76K | Mar 31, 16 | +722 | -- |
| Silver Rock Financial LLC | 3.38K | Mar 31, 16 | -330.12K | -- |
| MAZAMA CAPITAL MANAGEMENT INC | 71.90K | Dec 31, 15 | +45.10K | -- |
| Ada Investment Management, LP | 25.60K | Dec 31, 15 | +15.01K | -- |
| Santa Fe Partners LLC | 20.15K | Dec 31, 15 | +20.15K | -- |
| Pinnacle Summer Investments, Inc. | -- | Dec 31, 15 | -230 | -- |
| SOUND ENERGY PARTNERS, INC. | 163.90K | Sep 30, 15 | +73.90K | -- |
| TBP Investments Management, LLC | 105.00K | Sep 30, 15 | +105.00K | -- |
| BLACKTHORN INVESTMENT GROUP LLC | 80.00K | Sep 30, 15 | +80.00K | -- |
| Absolute Return Capital, LLC | 3.43K | Sep 30, 15 | -10.94K | -- |
| Index Management Solutions, LLC | -- | Sep 30, 15 | -172 | -- |
| MANAGED ACCOUNT ADVISORS LLC | 690.07K | Jun 30, 15 | -138.64K | -- |
| JASINKIEWICZ CAPITAL MANAGEMENT, LP | 130.00K | Mar 31, 15 | +130.00K | -- |
| BAIRD ROBERT W & CO INC /WI/ | 7.29K | Mar 31, 15 | -454.24K | -- |
| STANCORP INVESTMENT ADVISERS INC | 75 | Mar 31, 15 | -- | -- |
| Alden Global Capital Ltd | -- | Mar 31, 15 | -156.30K | -- |
| ICC CAPITAL MANAGEMENT INC/ | -- | Mar 31, 15 | -435 | -- |
| BOSTON PRIVATE BANK & TRUST CO | -- | Mar 31, 15 | -16 | -- |
| Alden Global Capital Ltd | 156.30K | Dec 31, 14 | +156.30K | -- |
| TradeLink Global Equity LLC | 39.82K | Dec 31, 14 | +37.47K | -- |
| Placemark Investments, Inc. | 34.34K | Dec 31, 14 | +4.56K | -- |
| NEW ENGLAND SECURITIES CORP /MA/ | 89 | Dec 31, 14 | +43 | -- |
| Loeb Offshore Management LP | -- | Dec 31, 14 | -19.78K | -- |
| ELEFANTE MICHAEL B | -- | Dec 31, 14 | -1.16K | -- |
| SHAPIRO ROBERT N | -- | Dec 31, 14 | -145 | -- |
| UBS AG | 184.25K | Sep 30, 14 | +52.84K | -- |
| QS BATTERYMARCH FINANCIAL MANAGEMENT, INC | 165.16K | Sep 30, 14 | +47.76K | -- |
| MUNDER CAPITAL MANAGEMENT | 32.01K | Sep 30, 14 | -1.67K | -- |
| BlueCrest Capital Management LLP | 9.24K | Sep 30, 14 | +9.24K | -- |
| SEI TRUST CO | 2.91K | Sep 30, 14 | +2.91K | -- |
| Perimeter Capital Partners, LLC | -- | Sep 30, 14 | -5.08K | -- |
| Wilmington Funds Management Corp | 122.10K | Jun 30, 14 | +13.70K | -- |
| WILMINGTON TRUST CO | 12.04K | Jun 30, 14 | -- | -- |
| Stux Capital Management, LLC | 10.00K | Jun 30, 14 | +2.90K | -- |
| Savitr Capital, LLC | 7.50K | Jun 30, 14 | +7.50K | -- |
| Wilmington Trust, National Association | 6.99K | Jun 30, 14 | +31 | -- |
| SAC Capital Advisors LP | 2.59M | Mar 31, 14 | +485.65K | -- |
| SIGMA CAPITAL MANAGEMENT LLC | 185.00K | Mar 31, 14 | +123.26K | -- |
| HALCYON OFFSHORE ASSET MANAGEMENT LLC | 50.00K | Mar 31, 14 | -- | -- |
| GLG INC. | 114.91K | Dec 31, 13 | -92.23K | -- |
| CONNOR CLARK & LUNN INVESTMENT MANAGEMENT LTD | 14.11K | Dec 31, 13 | +14.11K | -- |
| Jane Street Holding, LLC | 9.68K | Dec 31, 13 | +9.68K | -- |
| Daiwa Capital Markets America Inc. | 3.30K | Dec 31, 13 | +3.30K | -- |
| NORTHERN TRUST CO OF CONNECTICUT | -- | Dec 31, 13 | -376.73K | -- |
| STIFEL NICOLAUS & CO INC \MO\ | 41.69K | Sep 30, 13 | -1.09K | -- |
| Fiera Capital Inc. | 10.50K | Sep 30, 13 | +10.50K | -- |
| KNIGHT CAPITAL GROUP LLC | 16.12K | Jun 30, 13 | +6.68K | -- |
| Irish Life Investment Managers Ltd. | 13.41K | Jun 30, 13 | +3.21K | -- |
| Corridor Investors, LLC | 460.00K | Mar 31, 13 | +460.00K | -- |
| First Allied Securities, Inc. | 220 | Jun 30, 12 | +220 | -- |
| Boston Trust Walden Co | -- | Dec 31, 11 | -60 | -- |
| Crosswind Investments, LLC | 220 | Jun 30, 11 | -- | -- |
| GUGGENHEIM FUNDS INVESTMENT ADVISORS, LLC | 4.71K | Jun 30, 10 | -959 | -- |
| BROWN INVESTMENT ADVISORY & TRUST CO | 12.03K | Mar 31, 10 | -- | -- |
| LEHMAN BROTHERS HOLDINGS INC. PLAN TRUST | 31.10K | Jun 30, 08 | +1.62K | -- |
| MERCANTILE BANKSHARES CORP | 34.30K | Dec 31, 06 | +34.30K | -- |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 304.40K | Dec 31, 04 | -21.90K | -- |