| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2021 | Nov 30, 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2021 | Apr 5, 2021 | 001-07982 |
| 3 | Open Document | Open Filing | FORM 3 | Mar 8, 2021 | Mar 4, 2021 | 001-07982 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2021 | Mar 4, 2021 | 001-07982 |