| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | FORM 4/A | Jan 10, 2022 | Dec 31, 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2022 | Dec 31, 2021 | 001-13471 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2021 | Jun 13, 2021 | 001-13471 |
| 3 | Open Document | Open Filing | FORM 3 | Jan 19, 2021 | Jan 9, 2021 | 001-13471 |