| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| February 26, 2014 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 4,500 | $3.72 | 18,831 | |
| August 10, 2009 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 15,000 | $3.71 | 152,562 | |
| November 19, 2013 | President and CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 2,800 | $3.59 | 53,521 | |
| 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 | |
| February 26, 2007 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 10,000 | $3.50 | 87,466 | |
| June 20, 2014 | Chief Scientific Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $3.50 | 5,000 | |
| June 20, 2014 | CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 10,500 | $3.50 | 20,228 | |
| June 20, 2014 | CEO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 12,000 | $3.50 | 74,521 | |
| June 20, 2014 | Director, CEO | Form 4/A | Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3 | 3,000 | $3.50 | 74,521 | |
| February 23, 2007 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 10,000 | $3.50 | 10,000 | |
| February 27, 2007 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 10,000 | $3.49 | 97,466 | |
| July 8, 2011 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $3.46 | 30,000 | |
| July 8, 2011 | Chief Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 75,000 | $3.46 | 232,009 | |
| February 23, 2007 | President, CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 7,616 | $3.46 | 7,616 | |
| July 29, 2010 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $3.42 | 30,000 | |
| July 6, 2010 | Chief Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 100,000 | $3.39 | 100,000 | |
| June 26, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.36 | 50,081 | |
| August 10, 2010 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 3,000 | $3.35 | 3,000 | |
| February 20, 2015 | Ten Percent Owner | Form 4 | Open market or private sale of non-derivative or derivative security | 199,765 | $3.30 | 2,512,423 | |
| August 17, 2009 | Director, President & CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.30 | 65,917 | |
| December 5, 2012 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 34,583 | $3.25 | 156,625 | |
| December 5, 2012 | Director | Form 4 | Exercise of in-the-money or at-the-money derivative security | 34,583 | $3.25 | -- | |
| September 20, 2012 | Director | Form 4 | Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | 17,083 | $3.25 | 313,108 | |
| September 20, 2012 | Director | Form 4 | Exercise of in-the-money or at-the-money derivative security | 17,083 | $3.25 | 53,277 | |
| November 19, 2009 | Director, President & CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 6,000 | $3.21 | 71,917 |
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.
