| Date | Form | Description | Docs | XBRL | Pages |
| 12/21/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 12/19/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 10/16/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 08/31/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 07/30/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/11/18 | 4/A | Statement of changes in beneficial ownership of securities |
|
2 | |
| 06/07/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/15/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/23/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/07/18 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |
