| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Oct 15, 2025 | Oct 12, 2025 | 001-36020 | |
| 4 | Open Document | Open Filing | Jun 23, 2025 | Jun 19, 2025 | 001-36020 | |
| 4 | Open Document | Open Filing | Aug 14, 2023 | Aug 10, 2023 | 001-36020 | |
| 3 | Open Document | Open Filing | Aug 23, 2022 | Aug 15, 2022 | 001-40699 | |
| 4 | Open Document | Open Filing | Aug 19, 2022 | Aug 18, 2022 | 001-36020 | |
| 4 | Open Document | Open Filing | Dec 23, 2021 | Dec 20, 2021 | 001-41177 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 23, 2021 | Dec 20, 2021 | 001-41177 |
| 4 | Open Document | Open Filing | FORM 4 - | Jul 30, 2021 | Jul 30, 2021 | 001-36020 |
| 4 | Open Document | Open Filing | Dec 2, 2020 | Dec 1, 2020 | 000-24249 | |
| 4 | Open Document | Open Filing | FORM 4 - | Jul 10, 2020 | Jul 9, 2020 | 001-36020 |
| 4 | Open Document | Open Filing | Apr 6, 2020 | Mar 12, 2020 | 000-24249 | |
| 4/A | Open Document | Open Filing | Feb 10, 2020 | Jan 22, 2020 | 000-24249 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 24, 2020 | Jan 22, 2020 | 000-24249 |
| 4 | Open Document | Open Filing | FORM 4 - | Jul 29, 2019 | Jul 26, 2019 | 001-36020 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2019 | Mar 13, 2019 | 000-24249 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2019 | Dec 5, 2018 | 000-24249 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 6, 2018 | Dec 5, 2018 | 000-24249 |
| 4 | Open Document | Open Filing | FORM 4 - | Jul 30, 2018 | Jul 26, 2018 | 001-36020 |
| 4 | Open Document | Open Filing | FORM 4 - | May 1, 2018 | Apr 27, 2018 | 001-36020 |
| 4 | Open Document | Open Filing | Mar 9, 2018 | Mar 7, 2018 | 000-24249 | |
| 4 | Open Document | Open Filing | Sep 27, 2017 | Sep 26, 2017 | 000-24249 | |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 13, 2017 | Jun 12, 2017 | 001-36020 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 20, 2017 | Mar 16, 2017 | 000-24249 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 18, 2016 | Oct 14, 2016 | 000-24249 |
| 3/A | Open Document | Open Filing | FORM 3/A - | Jul 1, 2016 | Jun 30, 2016 | 001-36020 |
| 4 | Open Document | Open Filing | FORM 4 - | May 20, 2016 | May 18, 2016 | 001-36020 |
| 3 | Open Document | Open Filing | FORM 3 - | May 20, 2016 | May 18, 2016 | 001-36020 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2016 | Feb 3, 2016 | 000-24249 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2015 | Jun 3, 2015 | 000-24249 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2014 | Jun 4, 2014 | 000-24249 |