| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/09/18 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 03/09/18 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 03/09/18 | 4/A | Form 4/A: Statement of changes in beneficial ownership of securities | 2 | |
| 03/01/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/01/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/01/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 01/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |