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| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/18/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/11/13 | 3 | Initial statement of beneficial ownership of securities |
|
1 | |
| 02/15/13 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 02/15/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/15/13 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 03/22/12 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/11 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 01/04/11 | 5 | Annual statement of changes in beneficial ownership of securities |
|
2 | |
| 11/03/10 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 11/03/10 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |