| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2022 | Nov 30, 2022 | 000-55598 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2021 | Jun 21, 2021 | 000-55598 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 6, 2017 | Sep 28, 2017 | 000-55598 |
| 3 | Open Document | Open Filing | FORM 3 | Mar 18, 2016 | Mar 18, 2016 | 000-55598 |