| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 28 Jun 2021 | 25 Jun 2021 | 000-54239 | |
| 4 | Open Document | Open Filing | 29 Mar 2021 | 25 Mar 2021 | 000-54239 | |
| 4 | Open Document | Open Filing | 03 Feb 2020 | 31 Jan 2020 | 000-54239 | |
| 3 | Open Document | Open Filing | 03 Oct 2019 | 25 Sep 2019 | 000-54239 |