| Filing Date | Form | Description | Filing Group | Downloads | | 05/24/13 | 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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| | 05/09/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/30/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/23/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/18/13 | 3 | Initial filing by director officer or owner of more than ten percent. | 3,4,5 |
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| | 04/17/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/15/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/01/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 03/01/13 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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