| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 18 Feb 2025 | 14 Feb 2025 | 000-21617 | |
| 4 | Open Document | Open Filing | 19 Mar 2024 | 17 Mar 2024 | 000-21617 | |
| 4/A | Open Document | Open Filing | 22 Jun 2023 | 16 Jun 2023 | 000-21617 | |
| 4 | Open Document | Open Filing | 21 Jun 2023 | 19 Jun 2023 | 000-21617 | |
| 4 | Open Document | Open Filing | 05 Jul 2022 | 01 Jul 2022 | 000-21617 | |
| 4 | Open Document | Open Filing | 10 Jun 2021 | 09 Jun 2021 | 000-21617 | |
| 4 | Open Document | Open Filing | 11 Sep 2020 | 10 Sep 2020 | 000-21617 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Dec 2019 | 22 May 2019 | 000-21617 |