| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| June 19, 2019 | CFO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.89 | 7,298 | |
| 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 | |
| August 16, 2016 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.25 | 80,081 | |
| August 16, 2016 | Director, Chairman, President and CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.25 | 133,021 | |
| June 17, 2016 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.35 | 75,081 | |
| February 16, 2016 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.16 | 70,081 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 5,000 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 12,676 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 39,331 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 28,999 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 65,081 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 5,000 | $1.33 | 5,000 | |
| August 10, 2015 | Director, CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $2.29 | 79,521 | |
| May 13, 2015 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $2.50 | 60,081 | |
| August 15, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.12 | 55,081 | |
| June 26, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.36 | 50,081 | |
| 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 11, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.20 | 26,331 | |
| June 11, 2014 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.20 | 45,081 | |
| June 11, 2014 | CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $3.20 | 62,521 | |
| August 16, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.07 | 180,375 | |
| August 16, 2013 | CEO | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $1.08 | 228,285 | |
| May 21, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $0.93 | 175,375 | |
| May 21, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $0.93 | 175,375 | |
| May 13, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 5,000 | $0.96 | 170,375 |
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.
