| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 11, 2023 | Jun 12, 2023 | 000-51315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 9, 2023 | May 5, 2023 | 000-51315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 22, 2023 | Mar 20, 2023 | 000-51315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 2, 2023 | Jan 13, 2023 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2022 | Dec 9, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2022 | Jan 13, 2022 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 31, 2021 | Aug 27, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 12, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2021 | Jan 13, 2021 | 000-51315 |
| 3 | Open Document | Open Filing | 3 | Mar 31, 2020 | Mar 29, 2020 | 000-51315 |