| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2022 | Feb 1, 2022 | 001-13447 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2022 | Jan 29, 2022 | 001-13447 |
| 4/A | Open Document | Open Filing | FORM 4/A | Feb 11, 2021 | Jan 31, 2021 | 001-13447 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2021 | Jan 29, 2021 | 001-13447 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 11, 2020 | Dec 10, 2020 | 001-13447 |