| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 23, 2021 | Dec 23, 2021 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 15, 2021 | Jan 13, 2021 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2020 | Dec 14, 2020 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 10, 2020 | Mar 9, 2020 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2019 | Dec 16, 2019 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 11, 2019 | Dec 9, 2019 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 16, 2019 | Oct 14, 2019 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2019 | May 29, 2019 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2018 | Dec 14, 2018 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 12, 2018 | Dec 10, 2018 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 17, 2018 | Oct 15, 2018 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 7, 2018 | Feb 26, 2018 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2017 | Dec 14, 2017 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 12, 2017 | Dec 8, 2017 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 12, 2016 | Dec 7, 2016 | 001-12719 |
| 4/A | Open Document | Open Filing | FORM 4/A | Oct 31, 2016 | Oct 12, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 14, 2016 | Oct 12, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 12, 2016 | Aug 10, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 14, 2016 | May 26, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | May 25, 2016 | May 23, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2016 | May 13, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | May 9, 2016 | May 6, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2016 | Mar 10, 2016 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2015 | Dec 16, 2015 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2015 | Dec 11, 2015 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 11, 2015 | Dec 9, 2015 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 23, 2015 | Sep 21, 2015 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2015 | Mar 10, 2015 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 17, 2014 | Dec 15, 2014 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2014 | Dec 11, 2014 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 11, 2014 | Dec 9, 2014 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 7, 2014 | Nov 6, 2014 | 001-12719 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 10, 2014 | Dec 10, 2013 | 001-12719 |