| Date | Form | Description | Docs | XBRL | Pages | 
| 09/30/21 | 4 | Statement of changes in beneficial ownership of securities |     | 2 | |
| 09/27/21 | 4 | Statement of changes in beneficial ownership of securities |     | 2 | |
| 04/15/19 | 3 | Initial statement of beneficial ownership of securities |     | 1 | |
| 07/25/18 | 4 | Statement of changes in beneficial ownership of securities |     | 4 | |
| 07/03/18 | 3 | Initial statement of beneficial ownership of securities |     | 2 | |
| 05/14/18 | 4 | Statement of changes in beneficial ownership of securities |     | 1 | |
| 03/08/18 | 4 | Statement of changes in beneficial ownership of securities |     | 2 | |
| 03/08/18 | 4 | Statement of changes in beneficial ownership of securities |     | 1 | |
| 03/08/18 | 4 | Statement of changes in beneficial ownership of securities |     | 2 | |
| 03/08/18 | 4 | Statement of changes in beneficial ownership of securities |     | 1 | 





 
                   