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 | 03/03/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | COWARD JERRIT M | |  | |  | |  | |  | |
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| 02/26/2010 | | 8-K | | Report of unscheduled material events or corporate changes. | | | | | | | |  | | | |
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| 02/18/2010 | | 8-K/A | | Amendment to a previously filed 8-K | | | | | | | | | | | |
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| 02/16/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | FMR LLC | | | | | | | | | |
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| 02/16/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | KEELEY ASSET MANAGEMENT CORP | | | | | | | | | |
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| 02/12/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | GENDELL JEFFREY L ET AL | | | | | | | | | |
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| 02/12/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | KEELEY ASSET MANAGEMENT CORP | | | | | | | | | |
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| 02/10/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | BLACKROCK INC. | | | | | | | | | |
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| 02/09/2010 | | SC 13G/A | | An amendment to the SC 13G filing | | WHITEBOX ADVISORS LLC | | | | | | | | | |
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| 01/29/2010 | | SC 13G | | A statement of beneficial ownership of common stock by certain persons | | BLACKROCK INC. | | | | | | | | | |
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| 01/21/2010 | | SC 13G | | A statement of beneficial ownership of common stock by certain persons | | WELLS FARGO & CO/MN | | | | | | | | | |
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| 01/20/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | COWARD JERRIT M | | | | | | | | | |
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| 01/20/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | HARL ROBERT R | | | | | | | | | |
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| 01/05/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | HARL ROBERT R | | | | | | | | | |
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| 01/05/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | DEKRAAI ARLO B | | | | | | | | | |
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| 01/05/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | WELCH VAN A | | | | | | | | | |
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| 01/05/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | COWARD JERRIT M | | | | | | | | | |
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| 01/05/2010 | | 4 | | Statement of changes in beneficial ownership of securities | | HUGHES CLAYTON W. | | | | | | | | | |
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| 12/18/2009 | | 8-K | | Report of unscheduled material events or corporate changes. | | | | | | | | | | | |
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| 11/10/2009 | | 8-K | | Report of unscheduled material events or corporate changes. | | | | | | | | | | | |
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