| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/17/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/16/20 | 3 | Initial statement of beneficial ownership of securities |   | 3 | |
| 03/16/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/16/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/02/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/02/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/25/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/25/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/25/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |