| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Dec 21, 2021 | Dec 17, 2021 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 8, 2019 | Oct 4, 2019 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2019 | Oct 1, 2019 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2019 | Jan 2, 2019 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 29, 2018 | Jan 26, 2018 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2017 | May 18, 2017 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 28, 2017 | Feb 24, 2017 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 3, 2016 | Sep 30, 2016 | 001-37468 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2016 | May 20, 2016 | 001-37468 |
| 3 | Open Document | Open Filing | FORM 3 | Apr 11, 2016 | Apr 4, 2016 | 001-37468 |