| Date | Open | Close | Volume |
| 2010-03-02 | 12.86 | 12.71 | 286500 |
| 2010-03-01 | 12.76 | 12.74 | 264400 |
| 2010-02-26 | 12.65 | 12.66 | 230400 |
| 2010-02-25 | 12.64 | 12.61 | 338100 |
| 2010-02-24 | 12.76 | 12.69 | 315200 |
| 2010-02-23 | 12.64 | 12.64 | 421900 |
| 2010-02-22 | 12.61 | 12.64 | 339000 |
| 2010-02-19 | 12.57 | 12.59 | 325400 |
| 2010-02-18 | 12.27 | 12.52 | 267800 |
| 2010-02-17 | 12.29 | 12.34 | 183700 |
| 2010-02-16 | 12.29 | 12.31 | 242600 |
| 2010-02-12 | 12.22 | 12.25 | 150900 |
| 2010-02-11 | 12.16 | 12.25 | 190400 |
| 2010-02-10 | 12.10 | 12.18 | 274000 |
| 2010-02-09 | 12.20 | 12.21 | 265700 |
| 2010-02-08 | 12.19 | 12.22 | 237000 |
| 2010-02-05 | 12.63 | 12.24 | 486500 |
| 2010-02-04 | 12.77 | 12.59 | 390900 |
| 2010-02-03 | 12.73 | 12.79 | 249600 |
| 2010-02-02 | 12.64 | 12.75 | 234900 |
| 2010-02-01 | 12.67 | 12.68 | 422000 |
| 2010-01-29 | 12.64 | 12.55 | 432600 |
| 2010-01-28 | 12.53 | 12.56 | 391100 |
| 2010-01-27 | 12.58 | 12.57 | 328000 |
| 2010-01-26 | 12.58 | 12.51 | 335500 |
| 2010-01-25 | 12.44 | 12.59 | 382200 |
| 2010-01-22 | 12.35 | 12.46 | 319400 |
| 2010-01-21 | 12.44 | 12.35 | 231700 |
| 2010-01-20 | 12.31 | 12.43 | 282300 |
| 2010-01-19 | 12.28 | 12.34 | 275500 |
| 2010-01-15 | 12.32 | 12.33 | 150100 |
| 2010-01-14 | 12.18 | 12.28 | 186700 |
Other Companies: 05-27-2008-1 | American Independence Corp. | 12-05-2008-1
Nektar Therapeutics | 10-16-2007 | Strayer Education Inc.