| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Aug 1, 2022 | Jul 28, 2022 | 000-28827 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 12, 2022 | Jan 11, 2022 | 000-28827 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 4, 2021 | Jul 30, 2021 | 000-28827 |
| 3 | Open Document | Open Filing | FORM 3 | Jun 7, 2021 | May 25, 2021 | 000-28827 |