| | | Number of | | | | | | | | |
| | | Underlying Shares | | Per Share | | | | | ||
| Issue Date | | Of Common Stock | | Exercise Price | | Expiration Date | | |||
| August 13, 2009 | | | 67 | | $ | 90.00 | | | August 12, 2014 | |
| August 13, 2009 | | | 7 | | $ | 90.00 | | | June 9, 2014 | |
| March 8, 2010 | | | 145 | | $ | 74.88 | | | September 8, 2015 | |
| March 8, 2010 | | | 6 | | $ | 77.76 | | | June 9, 2014 | |
| June 23, 2010 | | | 99 | | $ | 88.20 | | | June 23, 2015 | |
| June 23, 2010 | | | 6 | | $ | 94.68 | | | June 9, 2015 | |
| December 30, 2010 | | | 147 | | $ | 72.00 | | | December 30, 2015 | |
| December 30, 2010 | | | 9 | | $ | 76.50 | | | June 9, 2015 | |
| March 8, 2011 | | | 112 | | $ | 81.00 | | | March 8, 2014 | |
| March 8, 2011 | | | 7 | | $ | 92.88 | | | June 9, 2014 | |
| August 20, 2012 | | | 83 | | $ | 9.00 | | | August 16, 2017 | |