| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 25, 2022 | May 24, 2022 | 000-56248 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | May 25, 2022 | Feb 24, 2022 | 000-56248 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 28, 2022 | Feb 24, 2022 | 000-56248 |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | Jan 3, 2022 | Dec 24, 2021 | 000-56248 |
| 4 | Open Document | Open Filing | Oct 5, 2021 | Oct 1, 2021 | 000-56224 | |
| 3 | Open Document | Open Filing | Jan 4, 2021 | Jan 4, 2021 | 000-56224 |