| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/24/13 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 04/24/13 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 04/24/13 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 03/28/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/28/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/28/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/28/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/28/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/19/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/19/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |