| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 15, 2022 | Jun 13, 2022 | 001-15911 |
| 4 | Open Document | Open Filing | CK | Mar 7, 2022 | Mar 4, 2022 | 001-15911 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2021 | Dec 14, 2021 | 001-15911 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 16, 2021 | Dec 14, 2021 | 001-15911 |