| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 25 May 2021 | 24 May 2021 | 000-52833 |
| 4/A | Open Document | Open Filing | FORM 4/A | 12 May 2021 | 01 Apr 2021 | 000-52833 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Apr 2021 | 01 Apr 2021 | 000-52833 |
| 3 | Open Document | Open Filing | FORM 3 | 09 Jul 2020 | 29 Jun 2020 | 000-52833 |