| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2021 | 17 May 2021 | 001-10799 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Aug 2020 | 16 Jul 2020 | 001-10799 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Aug 2020 | 16 Jul 2020 | 001-10799 |