| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| December 15, 2015 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | -- | 30,000 | |
| July 8, 2011 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $3.46 | 30,000 | |
| December 6, 2010 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $2.81 | 30,000 | |
| July 29, 2010 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 30,000 | $3.42 | 30,000 | |
| January 19, 2009 | Chief Financial Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $2.72 | 30,000 | |
| March 12, 2007 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 30,000 | $4.55 | 30,000 | |
| November 15, 2005 | VP of Operations | Form 4/A | Open market or private purchase of non-derivative or derivative security | 20,000 | $0.31 | 30,000 | |
| March 17, 2023 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 2,000 | -- | 30,099 | |
| August 14, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $3.20 | 30,311 | |
| March 23, 2011 | CMO | Form 4 | Conversion of derivative security | 2,500 | $2.40 | 30,687 | |
| May 26, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 25,907 | $0.12 | 30,907 | |
| July 24, 2019 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 10,000 | $1.73 | 31,491 | |
| March 22, 2007 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 32,010 | |
| November 14, 2008 | Director, President & CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 3,000 | $2.83 | 32,167 | |
| February 2, 2016 | CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 12,000 | $1.33 | 32,228 | |
| May 16, 2019 | Director, Chairman, President and CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $2.16 | 32,700 | |
| February 11, 2014 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 10,000 | -- | 33,331 | |
| March 15, 2007 | VP of Research & Development | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 15,000 | -- | 33,434 | |
| March 15, 2024 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 3,500 | -- | 33,599 | |
| March 15, 2006 | President & CEO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 24,510 | -- | 33,786 | |
| May 26, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 25,907 | $2.77 | 33,907 | |
| November 4, 2019 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $1.61 | 34,000 | |
| December 18, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 4,000 | $2.34 | 34,331 | |
| May 26, 2011 | CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 17,271 | $0.12 | 34,354 | |
| May 26, 2011 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 34,542 | $2.77 | 34,542 |
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.
