| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jun 8, 2021 | Jun 7, 2021 | 001-35249 | |
| 4/A | Open Document | Open Filing | Mar 3, 2021 | Feb 23, 2021 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 1, 2021 | Feb 25, 2021 | 001-35249 | |
| 4 | Open Document | Open Filing | Dec 21, 2020 | Dec 17, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Dec 4, 2020 | Dec 3, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Apr 8, 2020 | Apr 7, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 27, 2020 | Feb 25, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 19, 2020 | Mar 18, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 9, 2020 | Mar 5, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Feb 27, 2020 | Feb 25, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | Feb 5, 2020 | Feb 3, 2020 | 001-35249 | |
| 4 | Open Document | Open Filing | May 17, 2019 | May 15, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 11, 2019 | Mar 7, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | Mar 7, 2019 | Mar 5, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | Feb 14, 2019 | Feb 13, 2019 | 001-35249 | |
| 4 | Open Document | Open Filing | Jul 18, 2018 | Jul 17, 2018 | 001-35249 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 8, 2018 | Mar 7, 2018 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 7, 2018 | Mar 5, 2018 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 9, 2017 | Mar 7, 2017 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 8, 2017 | Mar 6, 2017 | 001-35249 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 14, 2016 | Mar 7, 2016 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 9, 2016 | Mar 7, 2016 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 22, 2016 | Jan 21, 2016 | 001-35249 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 14, 2016 | Jan 12, 2016 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 29, 2015 | Apr 6, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 8, 2015 | Apr 6, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 2, 2015 | Apr 2, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2015 | Mar 6, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 23, 2015 | Jan 21, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 14, 2015 | Jan 12, 2015 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 23, 2014 | Jan 21, 2014 | 001-35249 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 15, 2014 | Jan 12, 2014 | 001-35249 |