| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 3, 2023 | Jun 30, 2023 | 000-50626 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 2, 2023 | Jan 31, 2023 | 000-50626 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 15, 2021 | Dec 13, 2021 | 000-50626 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 28, 2020 | Oct 23, 2020 | 000-50626 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 28, 2020 | Oct 23, 2020 | 000-50626 |