| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2025 | 11 Dec 2025 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2025 | 21 Mar 2025 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2024 | 18 Dec 2024 | 000-16469 |
| 4 | Open Document | Open Filing | 05 Mar 2024 | 04 Mar 2024 | 000-16469 | |
| 4 | Open Document | Open Filing | 29 Dec 2023 | 28 Dec 2023 | 000-16469 | |
| 4 | Open Document | Open Filing | 15 Dec 2022 | 13 Dec 2022 | 000-16469 | |
| 4 | Open Document | Open Filing | 17 Dec 2021 | 15 Dec 2021 | 000-16469 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Dec 2020 | 14 Dec 2020 | 000-16469 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jan 2020 | 31 Dec 2019 | 000-16469 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Dec 2019 | 19 Dec 2019 | 000-16469 |
| 4/A | Open Document | Open Filing | 18 Dec 2019 | 16 Dec 2019 | 000-16469 | |
| 4 | Open Document | Open Filing | 18 Dec 2019 | 16 Dec 2019 | 000-16469 | |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jan 2019 | 31 Dec 2018 | 000-16469 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Dec 2018 | 21 Dec 2018 | 000-16469 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 May 2018 | 11 May 2018 | 000-16469 |
| 4 | Open Document | Open Filing | 4 | 20 Apr 2018 | 18 Apr 2018 | 000-16469 |
| 4 | Open Document | Open Filing | 4 | 03 Jan 2018 | 29 Dec 2017 | 000-16469 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Dec 2017 | 13 Dec 2017 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2017 | 30 Dec 2016 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Nov 2016 | 28 Nov 2016 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2016 | 31 Dec 2015 | 000-16469 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2015 | 14 Dec 2015 | 000-16469 |
| 4 | Open Document | Open Filing | 05 Jan 2015 | 31 Dec 2014 | 000-16469 | |
| 4 | Open Document | Open Filing | 19 Dec 2014 | 18 Dec 2014 | 000-16469 | |
| 4/A | Open Document | Open Filing | 07 Feb 2014 | 05 Feb 2014 | 000-16469 | |
| 4 | Open Document | Open Filing | 07 Feb 2014 | 07 Feb 2014 | 000-16469 | |
| 4/A | Open Document | Open Filing | 02 Jan 2014 | 31 Dec 2013 | 000-16469 | |
| 4 | Open Document | Open Filing | 02 Jan 2014 | 31 Dec 2013 | 000-16469 |