| Issued in Connection With | Expiration Date |
Common Shares Issuable |
Weighted Average Exercise Price |
||||||||
| February 2007 stock issuance | 2014 | 151,773 | $ | 59.08 | |||||||
| July 2009 Series II stock issuance | 2014 | 98,893 | $ | 7.00 | |||||||
| January 2010 stock issuance | 2015 | 101,785 | $ | 22.82 | |||||||
| January 2010 stock issuance | 2015 | 100,714 | $ | 19.95 | |||||||
| October 2010 stock issuance | 2015 | 594,513 | $ | 13.44 | |||||||
| July 2011 stock issuance | 2016 | 544,117 | $ | 9.52 | |||||||
| Total | 1,591,795 | $ | 17.06 | ||||||||