| Company | CIK | Ticker Symbol | Document |
|---|---|---|---|
| Bronco Drilling Company, Inc. | 1328650 | NASDAQ:BRNC | SC TO-T/A[html] |
| CHESAPEAKE ENERGY CORP | 895126 | NYSE:CHK NYSE:CHK^D NYSE:CHK^E | SC TO-T/A[html] |
| Felix 2011 Acquisition Sub, Inc. | 1518438 | SC TO-T/A[html] | |
| LABORATORY CORP OF AMERICA HOLDINGS | 920148 | NYSE:LH | SC TO-T/A[html] |
| ORCHID CELLMARK INC | 1107216 | NASDAQ:ORCH | SC TO-T/A[html] |
| TRADESTATION GROUP INC | 1111559 | NASDAQ:TRAD | SC TO-T/A[html] |