| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 08/20/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 08/20/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 08/20/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 06/18/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 06/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 06/13/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 06/13/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 06/13/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 4 | |
| 06/05/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 04/05/19 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 4 |