| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jul 2021 | 02 Jul 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jun 2021 | 16 Jun 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2021 | 25 May 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Apr 2021 | 02 Apr 2021 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Dec 2020 | 24 Dec 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Sep 2020 | 25 Sep 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 May 2020 | 19 May 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Mar 2020 | 27 Mar 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2020 | 28 Feb 2020 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Dec 2019 | 27 Dec 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Oct 2019 | 27 Sep 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | 001-05256 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jun 2019 | 24 May 2019 | 001-05256 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 May 2019 | 24 May 2019 | 001-05256 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2019 | 12 Mar 2019 | 001-05256 |