| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 17 Jul 2023 | 13 Jul 2023 | 000-23406 | |
| 4 | Open Document | Open Filing | 23 Feb 2023 | 21 Feb 2023 | 000-23406 | |
| 4 | Open Document | Open Filing | 07 Feb 2022 | 03 Feb 2022 | 000-23406 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2021 | 10 Feb 2021 | 000-23406 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Feb 2021 | 10 Feb 2021 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2020 | 18 Feb 2020 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2019 | 04 Jan 2019 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2018 | 16 Jan 2018 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2017 | 16 May 2017 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jan 2016 | 22 Jan 2016 | 000-23406 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jul 2012 | 29 Jun 2012 | 000-23406 |