| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/06/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/06/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/06/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/04/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/09/11 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 |
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