| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 22 Feb 2022 | 18 Feb 2022 | 000-22182 | |
| 4 | Open Document | Open Filing | 30 Apr 2021 | 29 Apr 2021 | 000-22182 | |
| 4 | Open Document | Open Filing | 29 Jan 2021 | 29 Jan 2021 | 000-22182 | |
| 3 | Open Document | Open Filing | 31 Aug 2020 | 21 Aug 2020 | 000-22182 |