| Form | Description | Filing Group | | 06/04/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 05/02/13 | 10-Q | Quarterly report which provides a continuing view of a company's financial position | Quarterly Filings |
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| | 05/02/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 04/09/13 | 4/A | Amendment to a previously filed 4 | 3,4,5 |
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| | 03/29/13 | 4/A | Amendment to a previously filed 4 | 3,4,5 |
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| | 03/04/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 02/20/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 02/04/13 | 8-K | Report of unscheduled material events or corporate event | Current Reports |
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| | 01/31/13 | 10-Q | Quarterly report which provides a continuing view of a company's financial position | Quarterly Filings |
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