| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 21, 2025 | May 19, 2025 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 7, 2025 | Feb 5, 2025 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 20, 2024 | Jun 17, 2024 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 18, 2024 | Mar 14, 2024 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 26, 2023 | Dec 21, 2023 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 24, 2023 | May 22, 2023 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2022 | Apr 25, 2022 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 15, 2022 | Apr 13, 2022 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 9, 2021 | Jun 7, 2021 | 001-37544 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2021 | May 14, 2021 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 9, 2020 | Dec 8, 2020 | 001-37544 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 28, 2020 | Apr 24, 2020 | 000-30319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 14, 2020 | Feb 12, 2020 | 001-37544 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 14, 2020 | Feb 12, 2020 | 001-37544 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 6, 2020 | Jan 6, 2020 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 3, 2019 | May 30, 2019 | 000-31191 |
| 4 | Open Document | Open Filing | 4 | May 24, 2019 | Apr 24, 2019 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 4, 2018 | May 31, 2018 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 26, 2018 | Apr 24, 2018 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 26, 2018 | Feb 22, 2018 | 000-31191 |
| 3 | Open Document | Open Filing | FORM 3 - | Feb 26, 2018 | Feb 22, 2018 | 000-31191 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 14, 2018 | Feb 12, 2018 | 000-30319 |
| 3 | Open Document | Open Filing | FORM 3 - | Feb 14, 2018 | Feb 12, 2018 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 16, 2017 | Feb 13, 2017 | 001-36172 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2017 | Jan 31, 2017 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2016 | Feb 1, 2016 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2015 | Jan 31, 2015 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2015 | Jan 13, 2015 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 18, 2014 | Dec 16, 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2014 | Nov 11, 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2014 | Oct 14, 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 11, 2014 | Aug 12, 2014 | 001-36172 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Jan 31, 2014 | 001-36172 |