| Filing Date | Form | Description | Filing Group | | 05/21/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 05/13/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 05/10/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/10/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
|
| | 05/09/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/09/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
|
| | 05/06/13 | 10-Q | Quarterly report | Quarterly Filings |
|
| | 05/06/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
|
| | 04/25/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
|
| | 04/04/13 | ARS | An annual report to security holders | Annual Filings |
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