| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 12 May 2021 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2021 | 26 Feb 2021 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jan 2021 | 28 Jan 2021 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Nov 2020 | 09 Nov 2020 | 001-16189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2020 | 10 Aug 2020 | 001-16189 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jun 2020 | 01 Jun 2020 | 001-16189 |