| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/19/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/19/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/19/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/14/20 | 3 | Initial statement of beneficial ownership of securities |   | 2 | |
| 02/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 01/06/20 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 12/16/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |