| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 15, 2022 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2022 | Mar 11, 2022 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 28, 2022 | Dec 31, 2021 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 8, 2021 | Sep 7, 2021 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 15, 2021 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 22, 2021 | Dec 31, 2020 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2020 | Mar 15, 2020 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 19, 2020 | Feb 15, 2020 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 7, 2020 | Dec 31, 2019 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2019 | Mar 15, 2019 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 20, 2019 | Feb 15, 2019 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 7, 2019 | Feb 6, 2019 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 9, 2019 | Dec 31, 2018 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 19, 2018 | Mar 15, 2018 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 16, 2018 | Feb 15, 2018 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 3, 2018 | Dec 31, 2017 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2017 | Feb 15, 2017 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 8, 2017 | Feb 6, 2017 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 6, 2017 | Jan 31, 2017 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 17, 2017 | Dec 31, 2016 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 29, 2016 | Dec 28, 2016 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 17, 2016 | Feb 15, 2016 | 000-07617 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2016 | Jan 31, 2016 | 000-07617 |
| 5 | Open Document | Open Filing | FORM 5 | Jan 8, 2016 | Dec 31, 2015 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2015 | Feb 15, 2015 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2015 | Feb 6, 2015 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 3, 2015 | Jan 31, 2015 | 000-07617 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2015 | Dec 31, 2014 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2014 | Feb 15, 2014 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2014 | Feb 6, 2014 | 000-07617 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2014 | Jan 31, 2014 | 000-07617 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2014 | Dec 31, 2013 | 000-07617 |