| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2025 | Feb 28, 2025 | 001-06961 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 4, 2024 | Dec 2, 2024 | 001-06961 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 24, 2024 | Oct 21, 2024 | 001-06961 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 13, 2022 | Sep 13, 2022 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 14, 2022 | Mar 10, 2022 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2021 | Apr 9, 2021 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2020 | Apr 9, 2020 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 15, 2019 | Aug 13, 2019 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 10, 2019 | Apr 9, 2019 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 11, 2018 | Apr 9, 2018 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 11, 2017 | Apr 9, 2017 | 001-35886 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 11, 2017 | Nov 10, 2016 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 15, 2016 | Nov 10, 2016 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 12, 2016 | Apr 9, 2016 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 13, 2015 | Apr 9, 2015 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 11, 2014 | Apr 9, 2014 | 001-35886 |