| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 07/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 07/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 07/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 07/26/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 07/25/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 06/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/24/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/22/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/16/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |