Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
---|---|---|---|---|---|---|
4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 9, 2022 | Sep 7, 2022 | 000-20713 |
4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 6, 2021 | Dec 2, 2021 | 000-20713 |
4 | Open Document | Open Filing | FORM 4 | Dec 17, 2019 | Dec 15, 2019 | 000-20713 |
4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 5, 2017 | Apr 3, 2017 | 000-20713 |
3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Apr 5, 2017 | Apr 3, 2017 | 000-20713 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 11, 2016 | Apr 7, 2016 | 000-52153 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2016 | Jan 12, 2016 | 000-52153 |
5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2015 | Dec 31, 2014 | 000-52153 |
4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 28, 2014 | Jan 24, 2014 | 000-52153 |