Date Filed
| Document Date | Type | Description | Filer | View |
| 02/08/10 | 02/08/10 | SC 13G/A | An amendment to the SC 13G filing | DIMENSIONAL FUND ADVISORS LP |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | DANNEWITZ CHARLES V |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | VETTER DAVID R |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | TREPANI JOSEPH B |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | TONNISON JOHN A |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | OSBOURN JOSEPH A |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | HOWELLS JEFFERY P |  |
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| 02/03/10 | 02/01/10 | 4 | Statement of changes in beneficial ownership of securities | CANO NESTOR |  |
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| 02/03/10 | 02/01/10 | 3 | Initial filing by director officer or owner of more than ten percent. | TONNISON JOHN A |  |
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| 02/01/10 | 02/01/10 | SC 13G/A | An amendment to the SC 13G filing | JANUS CAPITAL MANAGEMENT LLC |  |
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| 01/29/10 | 01/29/10 | SC 13G | A statement of beneficial ownership of common stock by certain persons | BlackRock Inc. |  |
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| 01/20/10 | 01/15/10 | 4 | Statement of changes in beneficial ownership of securities | DANNEWITZ CHARLES V |  |
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| 01/19/10 | 01/14/10 | 4 | Statement of changes in beneficial ownership of securities | HOWELLS JEFFERY P |  |
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| 01/11/10 | 01/08/10 | 4 | Statement of changes in beneficial ownership of securities | OSBOURN JOSEPH A |  |
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| 01/08/10 | 01/07/10 | 4 | Statement of changes in beneficial ownership of securities | DANNEWITZ CHARLES V |  |
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| 01/08/10 | 01/07/10 | 4 | Statement of changes in beneficial ownership of securities | HOWELLS JEFFERY P |  |
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| 01/08/10 | 01/07/10 | 4 | Statement of changes in beneficial ownership of securities | OSBOURN JOSEPH A |  |
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| 01/07/10 | 01/05/10 | 4 | Statement of changes in beneficial ownership of securities | VETTER DAVID R |  |
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| 01/07/10 | 01/05/10 | 4 | Statement of changes in beneficial ownership of securities | VETTER DAVID R |  |
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| 01/04/10 | 12/30/09 | 4 | Statement of changes in beneficial ownership of securities | ARDELT MAXIMILIAN |  |
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