| Date | Owner | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Hawkins Richard J Chief Executive Officer | D | Common Stock | |||||
| Hawkins Richard J Chief Executive Officer | D | Stock Option (Right to Buy) | |||||
| Zoth Lota S. | D | Common Stock | |||||
| Zoth Lota S. | D | Stock Option (Right to Buy) | |||||
| McKew John C. Chief Scientific Officer | D | Common Stock |