| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 6, 2022 | Oct 5, 2022 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 22, 2022 | Jun 21, 2022 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 16, 2022 | Jun 14, 2022 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 21, 2021 | Jun 17, 2021 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 19, 2020 | Jun 17, 2020 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 13, 2019 | Dec 11, 2019 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 20, 2019 | Jun 18, 2019 | 001-37539 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 22, 2018 | Jun 20, 2018 | 001-37539 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 5, 2017 | Oct 4, 2017 | 001-34822 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 22, 2017 | Jun 20, 2017 | 001-37539 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 3, 2017 | Dec 30, 2016 | 001-34822 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | 001-34822 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 1, 2016 | Jun 30, 2016 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 17, 2016 | Jun 16, 2016 | 001-37539 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 9, 2016 | Jun 8, 2016 | 000-54575 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 1, 2016 | Mar 31, 2016 | 000-54575 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 4, 2016 | Dec 31, 2015 | 000-54575 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 2, 2015 | Oct 1, 2015 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 24, 2015 | Sep 23, 2015 | 001-37539 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Sep 24, 2015 | Sep 23, 2015 | 001-37539 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 2, 2015 | Jun 30, 2015 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2015 | Jun 5, 2015 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2015 | Mar 31, 2015 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2015 | Dec 31, 2014 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2014 | Sep 30, 2014 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2014 | Jun 30, 2014 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2014 | Jun 4, 2014 | 000-54575 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2014 | Mar 31, 2014 | 000-54575 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | 000-54575 |