| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 26, 2021 | Jun 16, 2021 | 001-37792 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 26, 2020 | May 21, 2020 | 001-37792 |
| 4/A | Open Document | Open Filing | FORM 4/A | Sep 18, 2019 | Aug 9, 2019 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 13, 2019 | Aug 9, 2019 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 17, 2019 | Jun 13, 2019 | 001-37792 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 3, 2019 | Jan 1, 2019 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 7, 2018 | Sep 6, 2018 | 001-37792 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2018 | Jan 1, 2018 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 8, 2017 | Nov 6, 2017 | 001-37792 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 7, 2017 | Aug 7, 2017 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Jan 1, 2017 | 001-35448 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 1, 2016 | Jun 1, 2016 | 001-37792 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2016 | Feb 26, 2016 | 001-35448 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2016 | Jan 1, 2016 | 001-35448 |