| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 23 Mar 2022 | 28 Feb 2022 | 000-56215 | |
| 4 | Open Document | Open Filing | 23 Mar 2022 | 17 Nov 2021 | 000-56215 | |
| SC 13D/A | Open Document | Open Filing | 23 Mar 2022 | |||
| SC 13D | Open Document | Open Filing | 21 Dec 2020 | |||
| 3 | Open Document | Open Filing | 14 Dec 2020 | 14 Dec 2020 | 000-56215 |