| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/17/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/24/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/24/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/19/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 06/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 06/11/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/30/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/02/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 |