| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 20, 2022 | May 19, 2022 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2022 | Feb 18, 2022 | 001-39696 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 21, 2021 | May 20, 2021 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 28, 2021 | Apr 27, 2021 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 21, 2021 | Apr 19, 2021 | 001-38807 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 19, 2021 | Apr 14, 2021 | 001-39044 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 25, 2021 | Mar 16, 2021 | 001-38807 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 10, 2020 | Aug 6, 2020 | 000-55939 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 23, 2020 | Jun 17, 2020 | 000-55939 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2020 | May 20, 2020 | 001-39044 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 13, 2020 | Mar 12, 2020 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2020 | Feb 27, 2020 | 001-39231 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 27, 2020 | Feb 27, 2020 | 001-39231 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 19, 2019 | Sep 17, 2019 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 16, 2019 | Mar 29, 2019 | 001-39044 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 12, 2019 | Sep 12, 2019 | 001-39044 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 10, 2017 | Oct 8, 2017 | 001-37833 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 25, 2016 | Aug 24, 2016 | 001-37833 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jul 19, 2016 | Jul 19, 2016 | 001-37833 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 28, 2014 | Oct 27, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 7, 2014 | Oct 3, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 26, 2014 | Sep 24, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 5, 2014 | Aug 4, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2014 | Feb 28, 2014 | 000-27756 |
| 5 | Open Document | Open Filing | FORM 5 | Feb 14, 2014 | Dec 31, 2013 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2014 | Feb 6, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 5, 2014 | Feb 3, 2014 | 000-27756 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 31, 2014 | Jan 29, 2014 | 000-27756 |