| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2021 | 04 May 2021 | 001-00475 |
| 4 | Open Document | Open Filing | FORM 4 | 05 May 2021 | 04 May 2021 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2021 | 12 Feb 2021 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Feb 2021 | 08 Feb 2021 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2020 | 13 Feb 2020 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Feb 2020 | 10 Feb 2020 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Aug 2019 | 23 Aug 2019 | 001-00475 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Aug 2019 | 26 Aug 2019 | 001-00475 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2019 | 01 May 2019 | 001-00475 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2019 | 01 May 2019 | 001-00475 |