| Filing Date | Form | Description | Filing Group | Downloads | | 06/07/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
|  |  |  |  | | 06/06/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/22/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/17/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/13/13 | 8-K
| Report of unscheduled material events or corporate event
| Current Reports
| |  | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/09/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 05/03/13 | 10-Q
| Quarterly report which provides a continuing view of a company's financial position
| Quarterly Filings
| | | |  | | 05/01/13 | 8-K
| Report of unscheduled material events or corporate event
| Current Reports
| | | | | | 04/01/13 | 4
| Statement of changes in beneficial ownership of securities
| 3,4,5
| | | | | | 03/27/13 | ARS
| An annual report to security holders
| Annual Filings
|  | |  | |
|