| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 4 | Statement of changes in beneficial ownership of securities | January 26, 2022 | |
| 3 | Initial statement of beneficial ownership of securities | January 10, 2022 | |
| 8-K | Current report | January 3, 2022 | |
| 8-K | Current report | December 17, 2021 | |
| 8-K | Current report | November 17, 2021 | |
| 8-K | Current report | November 17, 2021 | |
| 3 | Initial statement of beneficial ownership of securities | November 10, 2021 | |
| 3 | Initial statement of beneficial ownership of securities | November 10, 2021 | |