| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2021 | Jun 9, 2021 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2020 | May 15, 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | May 8, 2020 | May 6, 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2020 | Feb 27, 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 27, 2020 | Feb 25, 2020 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 5, 2019 | Aug 1, 2019 | 001-39009 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2019 | Jun 13, 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2019 | Feb 27, 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2019 | Feb 22, 2019 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 1, 2018 | Feb 27, 2018 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2018 | Feb 22, 2018 | 000-08185 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 26, 2018 | Jan 26, 2018 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 5, 2017 | Aug 31, 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 23, 2017 | Feb 22, 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 31, 2017 | Jan 30, 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 27, 2017 | Jan 26, 2017 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 2, 2016 | Oct 31, 2016 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 31, 2016 | Oct 27, 2016 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 2, 2016 | Aug 31, 2016 | 000-08185 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 31, 2016 | Aug 31, 2016 | 000-08185 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 31, 2016 | Aug 30, 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 26, 2016 | Aug 24, 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2016 | Feb 22, 2016 | 001-36308 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2016 | Feb 2, 2016 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | Mar 27, 2015 | Mar 25, 2015 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | Dec 8, 2014 | Dec 8, 2014 | 001-36308 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 18, 2014 | Aug 18, 2014 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | Jun 12, 2014 | Jun 10, 2014 | 001-36308 |
| 4 | Open Document | Open Filing | 4 | Feb 14, 2014 | Feb 14, 2014 | 001-36308 |
| 3 | Open Document | Open Filing | 3 | Feb 11, 2014 | Feb 11, 2014 | 001-36308 |