| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2021 | Jun 10, 2021 | 001-35558 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 20, 2021 | May 18, 2021 | 001-36856 |
| 4 | Open Document | Open Filing | 4 | Aug 21, 2020 | Aug 19, 2020 | 001-36856 |
| 4 | Open Document | Open Filing | 4 | Jun 19, 2020 | Jun 17, 2020 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | May 18, 2020 | May 14, 2020 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Apr 7, 2020 | Apr 3, 2020 | 001-36856 |
| 4 | Open Document | Open Filing | 4 | Jul 25, 2019 | Jul 24, 2019 | 001-36856 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 24, 2019 | Jun 20, 2019 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Jul 6, 2018 | Jul 3, 2018 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Jun 19, 2018 | Jun 16, 2018 | 001-35268 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 25, 2018 | Jan 23, 2018 | 001-35558 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 4, 2018 | Jan 2, 2018 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Oct 5, 2017 | Oct 4, 2017 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Sep 6, 2017 | Sep 2, 2017 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Jun 30, 2017 | Jun 28, 2017 | 001-35268 |
| 4/A | Open Document | Open Filing | 4/A | Jan 5, 2017 | Jan 2, 2017 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Jan 4, 2017 | Jan 2, 2017 | 001-35558 |
| 3 | Open Document | Open Filing | 3 | Sep 21, 2016 | Sep 20, 2016 | 001-36856 |
| 4/A | Open Document | Open Filing | 4/A | Jun 29, 2016 | Jun 24, 2016 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Jun 27, 2016 | Jun 24, 2016 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Jan 6, 2016 | Jan 4, 2016 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Jul 28, 2015 | Jul 24, 2015 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Mar 19, 2015 | Mar 17, 2015 | 001-35558 |
| 4 | Open Document | Open Filing | 4 | Dec 9, 2014 | Dec 6, 2014 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Jun 12, 2014 | Jun 10, 2014 | 001-35268 |
| 4 | Open Document | Open Filing | 4 | Feb 26, 2014 | Feb 25, 2014 | 001-35558 |