| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/26/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/21/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/14/19 | 3 | Form 3: Initial statement of beneficial ownership of securities | 2 | |
| 01/29/19 | 5 | Form 5: Annual statement of changes in beneficial ownership of securities | 1 |