| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 144 | Open Document | Open Filing | May 10, 2024 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 26, 2024 | Apr 25, 2024 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2023 | Apr 27, 2023 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2022 | Jun 16, 2022 | 001-35980 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jun 3, 2022 | Oct 30, 2019 | 001-35980 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2022 | Apr 28, 2022 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2022 | Apr 22, 2022 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2021 | Jun 15, 2021 | 001-35980 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 26, 2021 | Apr 22, 2021 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2020 | Jun 16, 2020 | 001-35980 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2020 | Apr 23, 2020 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 31, 2019 | Oct 30, 2019 | 001-35980 |
| 3 | Open Document | Open Filing | FORM 3 | Oct 31, 2019 | Oct 30, 2019 | 001-35980 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 1, 2019 | Jul 31, 2019 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 25, 2019 | Apr 25, 2019 | 000-30713 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 1, 2018 | Jul 31, 2018 | 000-30713 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 1, 2018 | Jul 31, 2018 | 000-30713 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 21, 2016 | Sep 19, 2016 | 000-22780 |
| 4 | Open Document | Open Filing | 4 | Sep 12, 2016 | Sep 9, 2016 | 001-06549 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2016 | May 23, 2016 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2016 | May 19, 2016 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2016 | May 17, 2016 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 8, 2016 | Feb 5, 2016 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2015 | Dec 11, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 19, 2015 | Nov 18, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 3, 2015 | Nov 2, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 3, 2015 | Nov 2, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2015 | Sep 3, 2015 | 001-06549 |
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2015 | May 22, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | May 20, 2015 | May 19, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 9, 2015 | Feb 5, 2015 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 10, 2014 | Oct 31, 2014 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 10, 2014 | Nov 3, 2014 | 000-22780 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 10, 2014 | Sep 8, 2014 | 001-06549 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2014 | May 19, 2014 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 11, 2014 | Feb 10, 2014 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 10, 2014 | Feb 6, 2014 | 000-22780 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 7, 2014 | Feb 5, 2014 | 000-22780 |