| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 07/05/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 07/05/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/25/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/25/11 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 04/21/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/21/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/14/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/13/11 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/07/11 | 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 |
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