| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2025 | 10 Dec 2025 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Dec 2024 | 11 Dec 2024 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Dec 2023 | 14 Dec 2023 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2022 | 08 Dec 2022 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2021 | 07 Dec 2021 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Dec 2020 | 09 Dec 2020 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Sep 2020 | 02 Sep 2020 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Dec 2019 | 09 Dec 2019 | 000-26841 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Nov 2019 | 15 Nov 2019 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2018 | 11 Dec 2018 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2017 | 11 Dec 2017 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2016 | 13 Dec 2016 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2015 | 07 Dec 2015 | 000-26841 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Dec 2014 | 08 Dec 2014 | 000-26841 |