| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 20, 2025 | May 16, 2025 | 000-21318 | |
| 4 | Open Document | Open Filing | May 21, 2024 | May 17, 2024 | 000-21318 | |
| 4 | Open Document | Open Filing | May 23, 2023 | May 19, 2023 | 000-21318 | |
| 4 | Open Document | Open Filing | May 17, 2022 | May 13, 2022 | 000-21318 | |
| 3 | Open Document | Open Filing | Nov 22, 2021 | Nov 12, 2021 | 000-21318 |