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| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/01/19 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/27/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/27/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 12/03/18 | Statement of changes in beneficial ownership of securities |   | 2 | ||
| 06/26/18 | Statement of changes in beneficial ownership of securities |   | 2 |