| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/01/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/22/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 02/14/19 | 4 | Statement of changes in beneficial ownership of securities |   | 2 |