4 | Statement of changes in beneficial ownership of securities | Wednesday, Feb 20, 2019 |    |
4 | Statement of changes in beneficial ownership of securities | Wednesday, Jan 30, 2019 |    |
4 | Statement of changes in beneficial ownership of securities | Friday, Dec 7, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Monday, Dec 3, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 13, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 13, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 13, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 13, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 13, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Nov 6, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Wednesday, Oct 31, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Aug 7, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Wednesday, Aug 1, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Thursday, Jun 28, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Mar 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Mar 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Mar 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Mar 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Tuesday, Mar 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Friday, Mar 2, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Friday, Mar 2, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Friday, Mar 2, 2018 |     |
4 | Statement of changes in beneficial ownership of securities | Friday, Mar 2, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Friday, Mar 2, 2018 |    |