| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/25/19 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 02/25/19 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 02/25/19 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 02/25/19 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 01/16/19 | 3 | Initial statement of beneficial ownership of securities | 3 | ||
| 11/30/18 | 3 | Initial statement of beneficial ownership of securities | 3 | ||
| 10/25/18 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 09/17/18 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 08/01/18 | 3 | Initial statement of beneficial ownership of securities | 3 | ||
| 05/25/18 | 4 | Statement of changes in beneficial ownership of securities | 1 |