| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/19/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/19/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/11/19 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 05/24/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/22/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |