| Date | Owner | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Highland Crusader Offshore Partners, L.P. | S | Common Shares | |||||
| Neske Tammy SVP, Human Resources | J | Common Stock | |||||
| Neske Tammy SVP, Human Resources | J | Stock Option w/Tandem SAR | |||||
| Gross Jeffrey M SVP, Research & Development | J | Common Stock | |||||
| Gross Jeffrey M SVP, Research & Development | J | Stock Option w/Tandem SAR |