| Filing Date | Form | Description | Filing Group | Downloads |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |  |  |  |  |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.20.13 | 8-K | Report of unscheduled material events or corporate event | Current Reports | |  | | |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.20.13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 | | | | |
| 02.11.13 | SC 13G | A statement of beneficial ownership of common stock by certain persons | Other | | | | |
| 02.11.13 | SC 13G/A | An amendment to the SC 13G filing | Other | | | | |