| Filing Date | Form | Description | Filing Group |
| 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 |
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| 05/09/13 | SC 13D/A | An amendment to a SC 13D filing | Other |
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| 05/07/13 | SC 13D/A | An amendment to a SC 13D filing | Other |
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| 05/06/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| 05/03/13 | DEFA14A | Additional proxy soliciting materials - definitive | Proxy Filings |
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| 05/02/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| 05/02/13 | 424B5 | Form of prospectus disclosing information, facts, events covered in both forms 424B2, 424B3 | Registration Statements |
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| 05/01/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| 04/29/13 | 10-Q | Quarterly report which provides a continuing view of a company's financial position | Quarterly Filings |
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