| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | May 16, 2025 | May 14, 2025 | 000-07647 | |
| 4 | Open Document | Open Filing | Apr 14, 2025 | Mar 31, 2025 | 000-07647 | |
| 4 | Open Document | Open Filing | May 17, 2024 | May 15, 2024 | 000-07647 | |
| 4 | Open Document | Open Filing | Apr 3, 2024 | Apr 1, 2024 | 000-07647 | |
| 4 | Open Document | Open Filing | May 19, 2023 | May 17, 2023 | 000-07647 | |
| 4 | Open Document | Open Filing | Apr 5, 2023 | Apr 3, 2023 | 000-07647 | |
| 4 | Open Document | Open Filing | May 20, 2022 | May 18, 2022 | 000-07647 | |
| 4 | Open Document | Open Filing | Apr 13, 2022 | Apr 6, 2022 | 000-07647 | |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 15, 2022 | Feb 11, 2022 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | May 24, 2021 | May 20, 2021 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 8, 2021 | Apr 6, 2021 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | May 21, 2020 | May 20, 2020 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 3, 2020 | Apr 1, 2020 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 5, 2019 | May 23, 2019 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 7, 2018 | Jun 5, 2018 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 4, 2018 | May 31, 2018 | 000-07647 |
| 3 | Open Document | Open Filing | FORM 3 - | Jun 4, 2018 | Jun 2, 2017 | 000-07647 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 19, 2017 | Apr 17, 2017 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 22, 2017 | Feb 15, 2017 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 6, 2016 | Dec 3, 2016 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 17, 2016 | Feb 15, 2016 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 10, 2015 | Dec 9, 2015 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 7, 2015 | Dec 3, 2015 | 000-02382 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 17, 2015 | Feb 15, 2015 | 000-02382 |
| 3 | Open Document | Open Filing | FORM 3 - | Jan 6, 2015 | Jan 6, 2015 | 000-02382 |