| File Date | Form | Description | Filing Group | Downloads | | 05/30/13 | 3 | Initial filing by director officer or owner of more than ten percent. | 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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| | 10/19/12 | 3 | Initial filing by director officer or owner of more than ten percent. | 3,4,5 |
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| | 09/07/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 08/31/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 08/06/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 07/30/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 06/15/12 | 3 | Initial filing by director officer or owner of more than ten percent. | 3,4,5 |
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| | 05/23/12 | 3 | Initial filing by director officer or owner of more than ten percent. | 3,4,5 |
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| | 04/12/12 | 3 | Initial filing by director officer or owner of more than ten percent. | 3,4,5 |
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