| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/04/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/05/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/05/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 10/29/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 |