| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | Mar 7, 2022 | Mar 4, 2022 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2022 | Feb 23, 2022 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 25, 2021 | Feb 24, 2021 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 25, 2020 | Nov 24, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 25, 2020 | Sep 25, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 11, 2020 | Sep 11, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Sep 2, 2020 | Sep 1, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 30, 2020 | Mar 27, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 2, 2020 | Feb 26, 2020 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 4, 2019 | Feb 26, 2019 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Aug 7, 2018 | Aug 7, 2018 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 7, 2018 | Jun 6, 2018 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | May 14, 2018 | May 11, 2018 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 28, 2018 | Feb 26, 2018 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 29, 2017 | Nov 28, 2017 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Nov 14, 2017 | Nov 14, 2017 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 27, 2017 | Feb 22, 2017 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Dec 5, 2016 | Dec 2, 2016 | 000-50070 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 13, 2016 | Jul 12, 2016 | 001-32638 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 24, 2016 | Feb 23, 2016 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 24, 2015 | Mar 23, 2015 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Feb 27, 2015 | Feb 24, 2015 | 000-50070 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2015 | Jan 15, 2015 | 001-32638 |
| 4 | Open Document | Open Filing | FORM 4 - | Jun 23, 2014 | Jun 20, 2014 | 000-50070 |
| 4 | Open Document | Open Filing | FORM 4 - | Mar 13, 2014 | Mar 11, 2014 | 000-50070 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2014 | Jan 29, 2014 | 001-32638 |