| Filing Date | Form | Description | Filing Group | | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 05/14/13 | 4/A | Amendment to a previously filed 4 | 3,4,5 |
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