| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 27 Jan 2022 | 26 Jan 2022 | 000-03922 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Mar 2021 | 24 Mar 2021 | 000-03922 |
| 3 | Open Document | Open Filing | FORM 3 | 24 Aug 2020 | 13 Aug 2020 | 000-03922 |