| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 28 Jul 2025 | 25 Jul 2025 | 000-17077 | |
| 5 | Open Document | Open Filing | 31 Jan 2025 | 31 Dec 2024 | 000-17077 | |
| 4 | Open Document | Open Filing | 30 Apr 2024 | 30 Apr 2024 | 000-17077 | |
| 5 | Open Document | Open Filing | 22 Jan 2024 | 31 Dec 2023 | 000-17077 | |
| 5 | Open Document | Open Filing | 31 Jan 2023 | 31 Dec 2022 | 000-17077 | |
| 5 | Open Document | Open Filing | 01 Feb 2022 | 31 Dec 2021 | 000-17077 | |
| 5/A | Open Document | Open Filing | 08 Feb 2021 | 31 Dec 2020 | 000-17077 | |
| 5 | Open Document | Open Filing | 02 Feb 2021 | 31 Dec 2020 | 000-17077 | |
| 5 | Open Document | Open Filing | 11 Feb 2020 | 31 Dec 2019 | 000-17077 | |
| 4 | Open Document | Open Filing | 07 Feb 2019 | 06 Feb 2019 | 000-17077 | |
| 5 | Open Document | Open Filing | 05 Feb 2019 | 31 Dec 2018 | 000-17077 | |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 02 Feb 2018 | 31 Dec 2017 | 000-17077 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Feb 2017 | 31 Dec 2016 | 000-17077 |
| 4 | Open Document | Open Filing | 12 May 2016 | 12 May 2016 | 000-17077 | |
| 5 | Open Document | Open Filing | 09 Feb 2016 | 31 Dec 2015 | 000-17077 | |
| 5 | Open Document | Open Filing | 11 Feb 2015 | 31 Dec 2014 | 000-17077 | |
| 5 | Open Document | Open Filing | 05 Feb 2014 | 31 Dec 2013 | 000-17077 |