| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/14/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/25/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 09/05/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |