| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2022 | 03 Jan 2022 | 000-53548 |
| 4 | Open Document | Open Filing | 08 Oct 2021 | 01 Oct 2021 | 000-53548 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jul 2021 | 02 Jul 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Apr 2021 | 12 Apr 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 11 Jan 2021 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2020 | 01 Oct 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2020 | 01 Jul 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Apr 2020 | 02 Apr 2020 | 000-53548 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jan 2020 | 10 Jan 2020 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Oct 2019 | 01 Oct 2019 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 09 Jul 2019 | 02 Jul 2019 | 000-53548 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2019 | 30 Apr 2019 | 000-53548 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2019 | 29 Apr 2019 | 000-53548 |