| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| March 17, 2015 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 84,998 | |
| December 18, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $2.34 | 34,331 | |
| August 14, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $3.20 | 30,311 | |
| June 20, 2014 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | -- | 59,998 | |
| June 11, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.20 | 26,331 | |
| March 14, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 2,500 | $3.86 | 21,331 | |
| February 26, 2014 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 4,500 | $3.72 | 18,831 | |
| February 11, 2014 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 10,000 | -- | 29,998 | |
| November 15, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 3,000 | $3.80 | 14,331 | |
| August 16, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 10,000 | $1.09 | 51,000 | |
| May 6, 2013 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 35,000 | -- | 90,000 | |
| March 20, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 20,000 | $1.06 | 41,000 | |
| May 17, 2012 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.93 | 21,000 | |
| March 19, 2012 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $1.85 | 16,000 | |
| February 22, 2012 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 55,000 | |
| December 7, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $2.07 | 12,000 | |
| December 6, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $2.31 | 7,000 | |
| December 6, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 2,500 | $2.31 | 2,500 | |
| July 12, 2011 | Director | Form 3 | Initial Statement of Beneficial Ownership of Securities | -- | -- | 2,000 | |
| July 8, 2011 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $3.46 | 30,000 | |
| March 15, 2007 | VP of Research & Development | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 15,000 | -- | 33,434 | |
| February 23, 2007 | VP of Research & Development | Form 4 | Open market or private purchase of non-derivative or derivative security | 6,000 | $3.55 | 15,100 | |
| October 3, 2006 | VP of Research & Development | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,100 | $2.44 | 9,100 | |
| October 3, 2006 | VP of Research & Development | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,100 | -- | 18,434 | |
| May 12, 2006 | VP - Clin. Dev. & Med. Affairs | Form 4 | Open market or private purchase of non-derivative or derivative security | 300 | $3.75 | 2,300 |
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.
