| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 02/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/19/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 01/02/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/19/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 12/18/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 07/25/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 06/01/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |