| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 30, 2025 | Oct 28, 2025 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 24, 2024 | Oct 22, 2024 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 31, 2023 | Oct 27, 2023 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 26, 2023 | Oct 24, 2023 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 27, 2022 | Oct 25, 2022 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 25, 2022 | Oct 22, 2022 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 28, 2021 | Oct 26, 2021 | 001-15589 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 26, 2021 | Oct 22, 2021 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 29, 2020 | Oct 27, 2020 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 26, 2020 | Oct 22, 2020 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 25, 2019 | Oct 24, 2019 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2019 | Oct 22, 2019 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 21, 2018 | Dec 21, 2018 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 26, 2018 | Oct 24, 2018 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2018 | Oct 20, 2018 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 26, 2017 | Oct 24, 2017 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2017 | Oct 20, 2017 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 25, 2016 | Oct 25, 2016 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 24, 2016 | Oct 20, 2016 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 27, 2016 | Jul 26, 2016 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 23, 2015 | Oct 21, 2015 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 22, 2015 | Oct 20, 2015 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 13, 2015 | Jul 9, 2015 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2014 | Dec 19, 2014 | 001-15589 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 23, 2014 | Oct 21, 2014 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2014 | Oct 25, 2014 | 001-15589 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 24, 2014 | Oct 22, 2014 | 001-15589 |