| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Sep 2025 | 04 Sep 2025 | 000-16867 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jul 2025 | 18 Jul 2025 | 000-16867 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2025 | 30 May 2025 | 000-16867 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2025 | 06 May 2025 | 000-16867 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2025 | 31 Dec 2024 | 000-16867 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Sep 2024 | 23 Sep 2024 | 000-16867 |
| SC 13D/A | Open Document | Open Filing | 17 Apr 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Feb 2024 | 12 Feb 2024 | 000-16867 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Jan 2023 | 30 Dec 2022 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2022 | 14 Feb 2022 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Jan 2022 | 31 Dec 2021 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2021 | 23 Feb 2021 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 12 Feb 2021 | 31 Dec 2020 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Aug 2020 | 13 Aug 2020 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 13 Feb 2020 | 31 Dec 2019 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Mar 2019 | 26 Mar 2019 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 13 Feb 2019 | 31 Dec 2018 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2018 | 31 Dec 2017 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Jan 2018 | 24 Jan 2018 | 000-16867 |
| SC 13D/A | Open Document | Open Filing | 13DA NOVEMBER 2017 | 13 Nov 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2017 | 01 Aug 2017 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Mar 2017 | 22 Mar 2017 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2017 | 31 Dec 2016 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Oct 2016 | 13 Oct 2016 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Feb 2016 | 10 Feb 2016 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 10 Feb 2016 | 31 Dec 2015 | 000-16867 |
| 5/A | Open Document | Open Filing | FORM 5/A | 19 Mar 2015 | 31 Dec 2014 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Mar 2015 | 17 Mar 2015 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 12 Feb 2015 | 31 Dec 2014 | 000-16867 |
| 4 | Open Document | Open Filing | FORM 4 | 01 Apr 2014 | 28 Mar 2014 | 000-16867 |
| 5 | Open Document | Open Filing | FORM 5 | 14 Feb 2014 | 31 Dec 2013 | 000-16867 |