| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | Jun 2, 2021 | Jun 2, 2021 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 5, 2021 | Apr 1, 2021 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 3, 2021 | Feb 1, 2021 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 3, 2020 | Apr 1, 2020 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 4, 2020 | Feb 1, 2020 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 15, 2019 | Aug 15, 2019 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 7, 2019 | Jun 5, 2019 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 25, 2019 | Mar 21, 2019 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 8, 2018 | Aug 6, 2018 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 8, 2018 | Jun 6, 2018 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Apr 4, 2018 | Mar 14, 2018 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 22, 2017 | Aug 18, 2017 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 10, 2017 | Aug 8, 2017 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 8, 2017 | Aug 6, 2017 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 12, 2017 | Jun 8, 2017 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 9, 2016 | Aug 6, 2016 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 13, 2016 | Jun 9, 2016 | 001-35155 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2016 | May 12, 2016 | 000-51134 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 10, 2015 | Aug 6, 2015 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 16, 2015 | Jun 12, 2015 | 001-35155 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2015 | May 20, 2015 | 000-51134 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 13, 2014 | Aug 6, 2014 | 001-35155 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2014 | Jun 13, 2014 | 001-35155 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | 000-51134 |