| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/20/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/16/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/13/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/13/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/08/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |