| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 27 May 2021 | 25 May 2021 | 000-55908 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2021 | 21 May 2021 | 000-55908 |
| 3 | Open Document | Open Filing | FORM 3 | 08 Oct 2020 | 02 Oct 2020 | 000-55908 |