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| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 06/26/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 05/16/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 05/16/18 | Initial statement of beneficial ownership of securities |   | 3 | ||
| 05/08/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 04/20/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 03/02/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 03/02/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 03/02/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 03/02/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 03/02/18 | Statement of changes in beneficial ownership of securities |   | 2 |