| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 23, 2021 | Nov 23, 2021 | 001-34470 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 30, 2021 | Mar 29, 2021 | 001-34470 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 2, 2021 | Feb 26, 2021 | 001-34470 |
| 4 | Open Document | Open Filing | 4 | Mar 3, 2020 | Feb 28, 2020 | 001-34470 |
| 4 | Open Document | Open Filing | 4 | Feb 26, 2019 | Feb 22, 2019 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2018 | May 22, 2018 | 001-12173 |
| 4 | Open Document | Open Filing | 4 | Feb 28, 2018 | Feb 26, 2018 | 001-34470 |
| 4 | Open Document | Open Filing | 4 | Nov 3, 2017 | Nov 2, 2017 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 - | May 22, 2017 | May 18, 2017 | 001-34774 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 17, 2017 | May 16, 2017 | 001-12173 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 19, 2017 | Apr 17, 2017 | 001-12173 |
| 4 | Open Document | Open Filing | 4 | Feb 28, 2017 | Feb 24, 2017 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 14, 2016 | Dec 14, 2016 | 001-36718 |
| 4 | Open Document | Open Filing | FORM 4 - | May 23, 2016 | May 19, 2016 | 001-34774 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2016 | May 17, 2016 | 001-12173 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 12, 2016 | May 10, 2016 | 001-12173 |
| 4 | Open Document | Open Filing | 4 | Mar 1, 2016 | Feb 26, 2016 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 26, 2015 | Aug 26, 2015 | 001-36718 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 1, 2015 | May 28, 2015 | 001-36718 |
| 4 | Open Document | Open Filing | FORM 4 - | May 22, 2015 | May 21, 2015 | 001-34774 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2015 | May 14, 2015 | 001-36718 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 15, 2015 | May 14, 2015 | 001-12173 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2015 | May 7, 2015 | 001-12173 |
| 4 | Open Document | Open Filing | 4 | Feb 18, 2015 | Feb 13, 2015 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 21, 2014 | Nov 19, 2014 | 001-36718 |
| 3 | Open Document | Open Filing | FORM 3 | Nov 13, 2014 | Nov 13, 2014 | 001-36718 |
| 4 | Open Document | Open Filing | 4 | Sep 12, 2014 | Sep 11, 2014 | 001-34470 |
| 4 | Open Document | Open Filing | FORM 4 - | May 27, 2014 | May 22, 2014 | 001-34774 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2014 | May 15, 2014 | 001-12173 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2014 | Feb 27, 2014 | 001-33881 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 2, 2014 | Dec 30, 2013 | 001-12173 |