| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2023 | Jan 3, 2023 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2022 | Dec 1, 2022 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2022 | Nov 16, 2022 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2022 | Jan 3, 2022 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 1, 2021 | Dec 1, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 3, 2021 | Aug 2, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 19, 2021 | Jul 16, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2021 | Jul 2, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2021 | Jun 7, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 25, 2021 | Feb 24, 2021 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2020 | Dec 1, 2020 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 4, 2020 | Mar 3, 2020 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 18, 2020 | Feb 14, 2020 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2019 | Dec 4, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2019 | Jun 10, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2019 | Jun 4, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2019 | May 22, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2019 | May 1, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2019 | Apr 4, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 21, 2019 | Mar 20, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2019 | Mar 15, 2019 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2018 | Jun 19, 2018 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 18, 2018 | Jun 15, 2018 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2018 | Jun 6, 2018 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2018 | Feb 21, 2018 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 26, 2017 | Oct 26, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 29, 2017 | Sep 29, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 14, 2017 | Sep 13, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 1, 2017 | Sep 1, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 31, 2017 | Aug 30, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | May 3, 2017 | May 3, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 25, 2017 | Apr 24, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 10, 2017 | Apr 7, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2017 | Mar 24, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Jan 4, 2017 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 19, 2016 | Dec 16, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 11, 2016 | Jul 8, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2016 | Jun 8, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2016 | May 31, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2016 | May 4, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2016 | Apr 1, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2016 | Mar 29, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2016 | Mar 11, 2016 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 18, 2015 | Dec 18, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 25, 2015 | Aug 25, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 13, 2015 | Feb 11, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2015 | Feb 10, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 23, 2015 | Jan 22, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 21, 2015 | Jan 20, 2015 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2014 | Dec 2, 2014 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 13, 2014 | Nov 12, 2014 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 4, 2014 | Nov 3, 2014 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2014 | Oct 2, 2014 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 4, 2014 | Sep 2, 2014 | 000-51829 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2014 | Jun 16, 2014 | 001-31227 |