| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/04/18 | 3 | Initial statement of beneficial ownership of securities | 2 | ||
| 10/27/11 | 3 | Initial statement of beneficial ownership of securities | 2 | ||
| 10/27/11 | 3 | Initial statement of beneficial ownership of securities | 2 | ||
| 10/27/11 | 3 | Initial statement of beneficial ownership of securities | 2 |