| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | 30 Mar 2023 | |||
| 4/A | Open Document | Open Filing | 29 Mar 2023 | 31 Dec 2022 | 000-55896 | |
| 4 | Open Document | Open Filing | 02 Feb 2023 | 10 Jan 2023 | 000-55896 | |
| 3 | Open Document | Open Filing | 02 Feb 2023 | 10 Jan 2023 | 000-55896 | |
| 3 | Open Document | Open Filing | 16 Aug 2021 | 02 Apr 2019 | 000-55896 | |
| SC 13D/A | Open Document | Open Filing | 13 Aug 2021 | |||
| SC 13D/A | Open Document | Open Filing | 07 Apr 2020 | |||
| SC 13D | Open Document | Open Filing | 26 Nov 2019 |