| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/23/18 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 02/23/18 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 01/08/18 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 11/01/17 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 10/27/17 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 10/06/17 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 09/28/17 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 08/07/17 | 3 | Initial statement of beneficial ownership of securities | 3 | ||
| 07/06/17 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 06/02/17 | 4 | Statement of changes in beneficial ownership of securities | 1 |