| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 1, 2022 | May 27, 2022 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2021 | Nov 16, 2021 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 30, 2021 | Sep 28, 2021 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 29, 2021 | Sep 28, 2021 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 22, 2021 | Sep 21, 2021 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 21, 2021 | Sep 20, 2021 | 000-52833 |
| 3 | Open Document | Open Filing | FORM 3 | Sep 14, 2021 | Sep 1, 2021 | 000-52833 |