| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Aug 4, 2022 | Jul 11, 2022 | 001-37428 | |
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2021 | Feb 1, 2021 | 000-54258 |
| 3 | Open Document | Open Filing | FORM 3 | Dec 15, 2020 | Dec 11, 2020 | 000-54258 |
| 4 | Open Document | Open Filing | Jun 8, 2020 | Jun 6, 2020 | 001-37428 | |
| 4 | Open Document | Open Filing | May 19, 2020 | May 18, 2020 | 001-37428 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2020 | Mar 4, 2020 | 001-37428 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 16, 2019 | Nov 26, 2019 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 29, 2019 | Nov 26, 2019 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 14, 2019 | Feb 13, 2019 | 001-37899 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 8, 2019 | Feb 1, 2019 | 001-37899 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2019 | Feb 6, 2019 | 001-37428 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 25, 2018 | Jan 23, 2018 | 001-37428 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 27, 2017 | Oct 3, 2017 | 001-37428 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 25, 2016 | Oct 25, 2016 | 001-37428 |
| 4 | Open Document | Open Filing | Jul 7, 2016 | Jul 5, 2016 | 001-37428 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2016 | Feb 22, 2016 | 001-37428 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 30, 2015 | Jun 29, 2015 | 001-37428 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 24, 2015 | Jun 24, 2015 | 001-37428 |