| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 21 Nov 2025 | 20 Nov 2025 | 000-14942 | |
| 4 | Open Document | Open Filing | 22 Nov 2024 | 20 Nov 2024 | 000-14942 | |
| 4 | Open Document | Open Filing | 12 Dec 2022 | 08 Dec 2022 | 000-14942 | |
| 4 | Open Document | Open Filing | 25 Feb 2021 | 23 Feb 2021 | 000-14942 | |
| 4 | Open Document | Open Filing | 28 Jan 2021 | 07 Dec 2020 | 000-14942 | |
| 4 | Open Document | Open Filing | 26 Mar 2019 | 22 Mar 2019 | 000-14942 | |
| 4 | Open Document | Open Filing | 19 Dec 2018 | 19 Dec 2018 | 000-14942 | |
| 4 | Open Document | Open Filing | 17 Dec 2018 | 13 Dec 2018 | 000-14942 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Dec 2016 | 19 Dec 2016 | 000-14942 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 Dec 2015 | 18 Dec 2015 | 000-14942 |