| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2022 | May 13, 2022 | 001-37908 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2021 | May 14, 2021 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | Nov 12, 2020 | Nov 9, 2020 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | May 19, 2020 | May 15, 2020 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | Mar 17, 2020 | Mar 13, 2020 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | Mar 12, 2020 | Mar 11, 2020 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | May 17, 2019 | May 15, 2019 | 001-37908 |
| 4 | Open Document | Open Filing | FORM 4 - | May 17, 2018 | May 16, 2018 | 001-37908 |
| 4 | Open Document | Open Filing | FORM 4 - | May 17, 2017 | May 16, 2017 | 001-37908 |
| 4 | Open Document | Open Filing | 4 | Oct 13, 2016 | Oct 12, 2016 | 001-37908 |
| 3 | Open Document | Open Filing | 3 | Oct 7, 2016 | Oct 7, 2016 | 001-37908 |