| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/16/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/15/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/15/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/15/21 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 12/22/20 | 4/A | Statement of changes in beneficial ownership of securities |   | 2 | |
| 12/22/20 | 4/A | Statement of changes in beneficial ownership of securities |   | 2 | |
| 12/22/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 12/15/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/19/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 08/19/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |