| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/31/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/18/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/18/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/15/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 11/04/19 | 3 | Form 3: Initial statement of beneficial ownership of securities | 3 | |
| 10/18/19 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 1 |