| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/22/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/20/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/27/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/22/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/22/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/22/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 02/13/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/28/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/28/19 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 12/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |