| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 11 Jun 2024 | 11 Jun 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 | |
| 4/A | Open Document | Open Filing | 09 Dec 2021 | 15 Nov 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 15 Nov 2021 | 15 Nov 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 01 Nov 2021 | 29 Oct 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 02 Aug 2021 | 30 Jul 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 04 May 2021 | 30 Apr 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 02 Feb 2021 | 29 Jan 2021 | 000-17077 | |
| 4 | Open Document | Open Filing | 02 Nov 2020 | 02 Nov 2020 | 000-17077 | |
| 4 | Open Document | Open Filing | 11 Aug 2020 | 31 Jul 2020 | 000-17077 | |
| 4 | Open Document | Open Filing | 12 Feb 2020 | 12 Feb 2020 | 000-17077 | |
| 5 | Open Document | Open Filing | 05 Feb 2020 | 31 Dec 2019 | 000-17077 | |
| 4 | Open Document | Open Filing | 04 Feb 2019 | 01 Feb 2019 | 000-17077 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Oct 2017 | 26 Oct 2017 | 000-17077 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Feb 2017 | 14 Feb 2017 | 000-17077 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Feb 2017 | 14 Feb 2017 | 000-17077 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Sep 2016 | 15 Sep 2016 | 000-17077 |