| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 24 Aug 2022 | 24 Aug 2022 | 000-55008 |
| 4 | Open Document | Open Filing | 14 Apr 2021 | 22 Feb 2021 | 000-55008 | |
| 4 | Open Document | Open Filing | 30 Dec 2020 | 21 Dec 2020 | 000-55008 | |
| 4 | Open Document | Open Filing | 22 Sep 2020 | 27 Apr 2020 | 000-55008 | |
| 3 | Open Document | Open Filing | 22 Sep 2020 | 31 Mar 2020 | 000-55008 |