| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 06/24/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 06/08/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/31/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/25/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/25/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/24/11 | 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 |
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