| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| February 22, 2012 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 55,000 | |
| February 22, 2012 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 95,000 | |
| February 22, 2012 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 35,000 | -- | 254,911 | |
| February 22, 2012 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 70,000 | |
| February 22, 2012 | CEO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 33,000 | -- | 878,000 | |
| August 9, 2011 | Director | Form 4 | Conversion of derivative security | 41 | -- | -- | |
| July 12, 2011 | Director | Form 3 | Initial Statement of Beneficial Ownership of Securities | -- | -- | 2,000 | |
| March 23, 2011 | CMO | Form 4 | Conversion of derivative security | 6 | -- | -- | |
| March 23, 2011 | CFO | Form 4 | Conversion of derivative security | 8 | -- | -- | |
| March 23, 2011 | Director | Form 4 | Conversion of derivative security | 12 | -- | -- | |
| March 23, 2011 | Director | Form 4 | Conversion of derivative security | 83 | -- | -- | |
| March 23, 2011 | CEO | Form 4 | Conversion of derivative security | 41 | -- | -- | |
| March 23, 2011 | Controller & CAO | Form 4 | Conversion of derivative security | 8 | -- | -- | |
| February 25, 2011 | CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 10,000 | -- | 35,000 | |
| January 14, 2011 | Chief Medical Officer | Form 4 | Open market or private purchase of non-derivative or derivative security | 2,499 | -- | 2,500 | |
| January 14, 2011 | CFO | Form 4 | Open market or private purchase of non-derivative or derivative security | 3,333 | -- | 3,333 | |
| January 14, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,999 | -- | 5,000 | |
| January 14, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 17,083 | -- | 17,083 | |
| January 14, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 34,583 | -- | 34,583 | |
| January 14, 2011 | CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 17,083 | -- | 17,083 | |
| January 14, 2011 | Controller & CAO | Form 4 | Open market or private purchase of non-derivative or derivative security | 3,333 | -- | 3,333 | |
| July 6, 2010 | Chief Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 25,000 | |
| April 13, 2010 | Interim Chief Accounting Off. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 700 | -- | 7,700 | |
| April 13, 2010 | Interim Chief Accounting Off. | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 700 | -- | 21,400 | |
| January 19, 2010 | Chief Executive Officer | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 16,667 | -- | 114,329 |
For recent transactions, including derivative transactions, see our Section 16 SEC filings page.
* Represents the number of non-derivative securities directly held. (I) Indicates that some (or all) of these shares are held indirectly.
