| Date | Filer | Title | Filing | Type | Shares Traded | Price | Total Held |
|---|---|---|---|---|---|---|---|
| November 30, 2015 | Ten Percent Owner | Form 4 | Open market or private sale of non-derivative or derivative security | 20,000 | $2.15 | 2,442,423 | |
| August 13, 2015 | Ten Percent Owner | Form 4 | Open market or private sale of non-derivative or derivative security | 20,000 | $2.23 | 2,482,423 | |
| March 20, 2013 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 20,000 | $1.06 | 41,000 | |
| March 15, 2006 | EVP-COO, CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 20,000 | -- | 176,334 | |
| 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 | |
| November 15, 2005 | VP of Operations | Form 4 | Open market or private purchase of non-derivative or derivative security | 20,000 | $0.31 | 20,000 | |
| May 24, 2005 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 20,000 | $0.42 | 148,346 | |
| November 17, 2005 | EVP, CFO | Form 4/A | Open market or private purchase of non-derivative or derivative security | 21,300 | $0.29 | 231,667 | |
| November 16, 2005 | EVP, CFO | Form 4 | Open market or private purchase of non-derivative or derivative security | 21,300 | $0.29 | 21,300 | |
| May 30, 2017 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 21,429 | -- | 21,429 | |
| May 30, 2017 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 21,429 | -- | 21,249 | |
| May 30, 2017 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 21,429 | -- | 21,429 | |
| May 30, 2017 | Chief Scientific Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 21,786 | -- | 21,786 | |
| September 6, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 22,664 | -- | 158,215 | |
| December 22, 2003 | Director | Form 4 | Open market or private purchase of non-derivative or derivative security | 22,938 | $1.09 | 521,411 | |
| May 30, 2017 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 24,286 | -- | 24,286 | |
| March 15, 2006 | President & CEO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 24,510 | -- | 33,786 | |
| March 15, 2024 | Chief Scientific Officer | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 110,688 | |
| March 15, 2024 | CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 120,950 | |
| March 17, 2023 | Director, Executive Chairman of Board | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 215,846 | |
| June 15, 2020 | Controller | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 149,557 | |
| May 14, 2019 | CFO | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 349,951 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 135,551 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 109,998 | |
| February 2, 2016 | Director | Form 4 | Grant, award or other acquisition pursuant to Rule 16b-3(d) | 25,000 | -- | 118,886 |
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.
