As of December 31, 2013, the following warrants to purchase our common stock were outstanding and classified as equity:
Issuance Date |
Exercise Price | Number of Shares |
Exercisable Date | Expiration Date | ||||||
---|---|---|---|---|---|---|---|---|---|---|
November 2011(1) |
$ | 2.32 | 461,382 | November 2011 | November 2021 | |||||
August 2011(1) |
$ | 3.98 | 537,893 | August 2011 | August 2021 | |||||
September 2009 |
$ | 9.00 | 150,000 | September 2009 | September 2014 | |||||
April 2005 |
$ | 3.75 | 470,000 | April 2005 | April 2015 | |||||
| | | | | | | | | | |
|
1,619,275 | |||||||||
| | | | | | | | | | |
| | | | | | | | | | |