| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Nov 23, 2022 | Nov 23, 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | Aug 11, 2022 | Aug 9, 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | Mar 4, 2022 | Mar 2, 2022 | 000-50796 | |
| 4 | Open Document | Open Filing | Mar 5, 2021 | Mar 3, 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | Feb 11, 2021 | Feb 10, 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | Feb 8, 2021 | Feb 4, 2021 | 000-50796 | |
| 4 | Open Document | Open Filing | Jan 7, 2021 | Jan 6, 2021 | 000-50796 | |
| 4/A | Open Document | Open Filing | Jul 7, 2020 | Feb 7, 2020 | 000-50796 | |
| 4 | Open Document | Open Filing | Feb 11, 2020 | Feb 7, 2020 | 000-50796 | |
| 4 | Open Document | Open Filing | Mar 27, 2019 | Mar 25, 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | Mar 5, 2019 | Mar 1, 2019 | 000-50796 | |
| 4 | Open Document | Open Filing | Feb 14, 2019 | May 21, 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | Dec 6, 2018 | Dec 4, 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | Oct 24, 2018 | Oct 22, 2018 | 000-50796 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 1, 2017 | Feb 23, 2017 | 000-50796 |