| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | Mar 15, 2022 | Mar 11, 2022 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 11, 2022 | Dec 31, 2021 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 24, 2022 | Jan 20, 2022 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2021 | Aug 4, 2021 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 10, 2021 | Jun 8, 2021 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2021 | Mar 31, 2021 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 31, 2021 | Mar 30, 2021 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 26, 2021 | Dec 31, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2021 | Jan 19, 2021 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 4, 2020 | Aug 2, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2020 | Jun 9, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 9, 2020 | Apr 7, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2020 | Feb 19, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2020 | Jan 17, 2020 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2020 | Jan 15, 2020 | 000-28082 |
| 5/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2020 | Dec 31, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 7, 2020 | Jan 3, 2020 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2020 | Dec 31, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 3, 2019 | Oct 2, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jul 1, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 11, 2019 | Jun 10, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 7, 2019 | Jun 5, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 10, 2019 | Apr 8, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2019 | Apr 2, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 28, 2019 | Mar 27, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2019 | Mar 15, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2019 | Feb 20, 2019 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2019 | Dec 31, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2019 | Jan 15, 2019 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2018 | Aug 15, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2018 | Jun 6, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 6, 2018 | Apr 5, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 19, 2018 | Mar 15, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2018 | Feb 22, 2018 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2018 | Dec 31, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 17, 2018 | Jan 16, 2018 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 27, 2017 | Oct 25, 2017 | 000-28082 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Mar 30, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2017 | Mar 30, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2017 | Mar 11, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2017 | Feb 17, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2017 | Feb 8, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2017 | Feb 7, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 6, 2017 | Feb 2, 2017 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2017 | Dec 31, 2016 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2017 | Jan 19, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 19, 2017 | Jan 17, 2017 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2016 | Mar 11, 2016 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2016 | Feb 17, 2016 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 22, 2016 | Dec 31, 2015 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 19, 2016 | Jan 14, 2016 | 000-28082 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 9, 2015 | Apr 9, 2015 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2015 | Mar 11, 2015 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2015 | Mar 9, 2015 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2015 | Feb 26, 2015 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2015 | Dec 31, 2014 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 7, 2014 | Nov 4, 2014 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2014 | Mar 12, 2014 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 13, 2014 | Mar 11, 2014 | 000-28082 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 25, 2014 | Feb 22, 2014 | 000-28082 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2014 | Dec 31, 2013 | 000-28082 |