| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Jan 5, 2022 | Dec 17, 2021 | 001-10356 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Dec 20, 2021 | Dec 17, 2021 | 001-10356 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | May 24, 2021 | May 24, 2021 | 001-10356 |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | Jan 28, 2021 | Jan 21, 2021 | 001-10356 |