| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Dec 2022 | 30 Nov 2022 | 000-55450 |
| 4 | Open Document | Open Filing | 15 Jun 2022 | 14 Jun 2022 | 000-55450 | |
| 4 | Open Document | Open Filing | 06 May 2022 | 04 May 2022 | 000-55450 | |
| 4 | Open Document | Open Filing | 30 Apr 2021 | 01 Oct 2020 | 000-55450 | |
| 3 | Open Document | Open Filing | 30 Dec 2019 | 10 Dec 2019 | 000-55450 |