| Company | CIK | Ticker Symbol | Document |
| O BRIEN THOMAS M | 1241556 | | 4[html] |
| O BYRNE ROBERT | 1251102 | | 4[html] |
| O CHARLEYS INC | 864233 | | 8-K[html] |
| O'BLENES JONATHAN BRIAN | 1482975 | | 4[html] |
| OBA Financial Services, Inc. | 1471088 | | 8-K[html] |
| OBER GORDON L | 1247540 | | 4[html] |
| OBRIEN ROBERT G | 1217455 | | 4[html] |
| OCEANFREIGHT INC. | 1395593 | NASDAQ:OCNF | 6-K[html] |
| OCONNOR JAMES E | 1074998 | | 4[html] |
| OCTAGON 88 RESOURCES, INC. | 1444837 | | CORRESP[html] NT 10-Q[html] UPLOAD[html] UPLOAD[html] |
| OCTUS INC | 891462 | | NT 10-Q[html] |
| OCZ TECHNOLOGY GROUP INC | 1355128 | | 10-K[html] S-3[html] |
| ODMAN MATS | 1041921 | | 4[html] |
| OHARE DEAN R | 1189509 | | 4[html] |
| OICCO ACQUISITION I, INC. | 1469284 | | EFFECT[html] |
| OLD LINE BANCSHARES INC | 1253317 | NASDAQ:OLBK | 4[html] |
| OLD SECOND BANCORP INC | 357173 | NASDAQ:OSBC NASDAQ:OSBCP | 8-K[html] |
| OLSEN ARTHUR E | 1192641 | | 4[html] |
| OMEGA HEALTHCARE INVESTORS INC | 888491 | NYSE:OHI NYSE:OHI^D | 4[html] 4[html] 4[html] 4[html] 4[html] |
| ONEILL PAUL H | 1221200 | | 4[html] |
| OP TECH ENVIRONMENTAL SERVICES INC | 858748 | | 10-Q[html] NT 10-Q[html] |
| OPEN RANGE INC | 1514219 | | D[html] |
| OPENWAVE SYSTEMS INC | 1082506 | NASDAQ:OPWV | 4[html] |
| OPHTHALMIC IMAGING SYSTEMS | 885317 | | S-8[html] |
| OPPENHEIM RICHARD J | 1261305 | | 4[html] |
| OPTI INC | 899297 | | 8-K[html] |
| OPTIMER PHARMACEUTICALS INC | 1142576 | NASDAQ:OPTR | 4[html] 4[html] 4[html] 4[html] 4[html] |
| ORACLE CORP | 1341439 | NASDAQ:ORCL | 4[html] |
| ORAGENICS INC | 1174940 | | 4[html] 4[html] 4[html] |
| ORIENT EXPRESS HOTELS LTD | 1115836 | | 8-K[html] |
| OROURKS MICHAEL J | 1243227 | | 4[html] |
| OSBORNE RICHARD M | 923589 | | 4[html] |
| OSTIAL SOLUTIONS LLC | 1345956 | | D[html] |
| OSTRANDER GREGG A | 1071491 | | 4[html] |
| OTR INC /TA | 746972 | | TA-2[html] |
| OVERLAND STORAGE INC | 889930 | NASDAQ:OVRL | 10-Q[html] S-3/A[html] |
| OVERSTOCK.COM, INC | 1130713 | NASDAQ:OSTK | 4[html] |
| OWENS CHRISTINE M | 1336319 | | 4[html] |
| OWLETT EDWARD H III | 1242478 | | 4[html] |
| OZ MANAGEMENT LP | 1054587 | | SC 13G[html] |
| OZDPII Access II LLC | 1516291 | | D[html] |
| Oasis Petroleum Inc. | 1486159 | | 4[html] |
| Ocean Shore Holding Co. | 1444397 | NASDAQ:OSHC | 4[html] |
| Octavian Advisors, LP | 1426664 | | SC 13D/A[html] |
| Odenza Corp. | 1489300 | | 10-K[html] |
| Okana Ventures, Inc. | 1378076 | | NT 10-Q[html] |
| Old Mutual Funds II | 775180 | | 485BXT[html] |
| Ollagnier Jean-Marc | 1514393 | | 4[html] |
| Olsen John Patrick | 1477257 | | 4[html] |
| Olson Terrence W. | 1469182 | | 4[html] |
| Omega Navigation Enterprises, Inc. | 1324915 | NASDAQ:ONAV | 6-K[html] |
| Omi Gregory | 1475060 | | SC 13D[html] |
| Oncor International LLC | 1420449 | | S-4/A[html] |
| One e Commerce CORP | 1425919 | | 10-Q[html] NT 10-Q[html] |
| Oneida Financial Corp. | 1485001 | NASDAQ:ONFC | 8-K[html] |
| Opko Health, Inc. | 944809 | AMEX:OPK | 4[html] |
| Oppenheimer Rochester Massachusetts Municipal Fund | 1357433 | | 485APOS[html] |
| Oppenheimer Rochester Michigan Municipal Fund | 1357432 | | 485APOS[html] |
| Options Media Group Holdings, Inc. | 1413993 | | 10-K[html] NT 10-Q[html] |
| Oraco Resources, Inc. | 1490711 | | 10-Q[html] NT 10-Q[html] |
| Orange 21 Inc. | 932372 | NASDAQ:ORNG | 8-K[html] |
| Organic Sales & Marketing Inc | 1354030 | | NT 10-Q[html] |
| Origin Agritech LTD | 1321851 | NASDAQ:SEED | 6-K[html] |
| Orion Marine Group Inc | 1402829 | NASDAQ:OMGI | 4[html] |
| Osborne Jeffrey D | 1489439 | | 4[html] |
| Otten Jeffrey | 1318032 | | 4[html] |
| Otter Tail Corp | 1466593 | NASDAQ:OTTR | 4[html] |
| Overfelt Reed | 1520917 | | 3[html] |