| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 19, 2025 | May 15, 2025 | 001-10551 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 7, 2025 | May 5, 2025 | 001-10551 |
| 4 | Open Document | Open Filing | Mar 27, 2025 | Mar 25, 2025 | 001-10551 | |
| 4 | Open Document | Open Filing | May 8, 2024 | May 6, 2024 | 001-10551 | |
| 4 | Open Document | Open Filing | Mar 29, 2024 | Mar 28, 2024 | 001-10551 | |
| 4 | Open Document | Open Filing | Apr 25, 2023 | Apr 21, 2023 | 001-10551 | |
| 4 | Open Document | Open Filing | Jul 5, 2022 | Jun 30, 2022 | 001-10551 | |
| 4 | Open Document | Open Filing | Apr 27, 2021 | Apr 23, 2021 | 001-10551 | |
| 4 | Open Document | Open Filing | Jun 10, 2020 | Jun 8, 2020 | 001-10551 | |
| 4 | Open Document | Open Filing | May 22, 2019 | May 20, 2019 | 001-10551 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 26, 2018 | Oct 24, 2018 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 23, 2018 | May 21, 2018 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 25, 2017 | May 24, 2017 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 18, 2017 | Jan 15, 2017 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 26, 2016 | May 24, 2016 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 26, 2016 | Apr 22, 2016 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 20, 2016 | Jan 15, 2016 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 28, 2015 | Apr 24, 2015 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 20, 2015 | Jan 15, 2015 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 10, 2014 | Apr 8, 2014 | 001-10551 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 17, 2014 | Jan 15, 2014 | 001-10551 |