| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/27/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/27/18 | 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 | 2 | |
| 12/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/20/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/20/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |