| Filing Date | Form | Description | Filing Group | Downloads | | 03/08/13 | 4 | Statement of changes in beneficial ownership of securities | 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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| | 02/04/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 01/04/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 01/02/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 12/26/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 12/18/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 12/03/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 12/03/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 11/16/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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