| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/23/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/20/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 05/17/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 05/15/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 05/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 05/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/13/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 05/10/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 05/10/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/10/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |