| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/29/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/28/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/27/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/23/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/22/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/21/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/20/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/15/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/14/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 12/13/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 |