| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 29, 2021 | Jun 25, 2021 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 29, 2021 | Mar 26, 2021 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2021 | Dec 31, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 23, 2020 | Dec 22, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 28, 2020 | Sep 25, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2020 | Jul 1, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 1, 2020 | Jun 30, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2020 | Jun 19, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2020 | Mar 20, 2020 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2020 | Dec 31, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 23, 2019 | Dec 20, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 24, 2019 | Sep 20, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2019 | Jun 28, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 25, 2019 | Jun 21, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2019 | Mar 22, 2019 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2019 | Dec 31, 2018 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 26, 2018 | Dec 21, 2018 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2018 | Jul 2, 2018 | 000-27084 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2018 | Jun 29, 2018 | 000-27084 |
| 4 | Open Document | Open Filing | Apr 3, 2018 | Mar 30, 2018 | 001-06605 | |
| 4 | Open Document | Open Filing | Jan 3, 2018 | Dec 29, 2017 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2018 | Dec 31, 2017 | 000-27084 |
| 4 | Open Document | Open Filing | Oct 3, 2017 | Sep 29, 2017 | 001-06605 | |
| 4 | Open Document | Open Filing | Jul 5, 2017 | Jun 30, 2017 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2017 | Jun 30, 2017 | 000-27084 |
| 4 | Open Document | Open Filing | May 8, 2017 | May 4, 2017 | 001-06605 | |
| 4 | Open Document | Open Filing | Apr 4, 2017 | Mar 31, 2017 | 001-06605 | |
| 4 | Open Document | Open Filing | Jan 4, 2017 | Dec 30, 2016 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2017 | Dec 31, 2016 | 000-27084 |
| 4 | Open Document | Open Filing | Oct 4, 2016 | Sep 30, 2016 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2016 | Jun 30, 2016 | 000-27084 |
| 4 | Open Document | Open Filing | Jul 1, 2016 | Jun 30, 2016 | 001-06605 | |
| 4 | Open Document | Open Filing | May 9, 2016 | May 5, 2016 | 001-06605 | |
| 4 | Open Document | Open Filing | Apr 4, 2016 | Mar 31, 2016 | 001-06605 | |
| 4 | Open Document | Open Filing | Jan 4, 2016 | Dec 31, 2015 | 001-06605 | |
| 4 | Open Document | Open Filing | Oct 2, 2015 | Sep 30, 2015 | 001-06605 | |
| 4 | Open Document | Open Filing | Jul 1, 2015 | Jun 30, 2015 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2015 | Jun 1, 2015 | 000-27084 |
| 4 | Open Document | Open Filing | May 4, 2015 | May 1, 2015 | 001-06605 | |
| 4 | Open Document | Open Filing | Apr 1, 2015 | Mar 31, 2015 | 001-06605 | |
| 4 | Open Document | Open Filing | Jan 5, 2015 | Dec 31, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | Oct 2, 2014 | Sep 30, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | Jul 1, 2014 | Jun 30, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | FORM 4 | Jun 4, 2014 | Jun 2, 2014 | 000-27084 |
| 4/A | Open Document | Open Filing | May 16, 2014 | May 2, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | May 6, 2014 | May 2, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | Apr 2, 2014 | Mar 31, 2014 | 001-06605 | |
| 4 | Open Document | Open Filing | Jan 2, 2014 | Dec 31, 2013 | 001-06605 |