| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Jun 2021 | 24 Jun 2021 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Apr 2021 | 14 Apr 2021 | 001-11893 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2021 | 03 Feb 2021 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2021 | 01 Feb 2021 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2020 | 03 Feb 2020 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2019 | 11 Dec 2019 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2019 | 12 Jun 2019 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2019 | 04 Feb 2019 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2018 | 30 Aug 2018 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Feb 2018 | 30 Jan 2018 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Feb 2017 | 30 Jan 2017 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2016 | 01 Feb 2016 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Feb 2015 | 02 Feb 2015 | 001-11893 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Feb 2014 | 03 Feb 2014 | 001-11893 |