| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Feb 20, 2024 | Feb 15, 2024 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 21, 2023 | Feb 17, 2023 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2023 | Feb 15, 2023 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2022 | Jan 31, 2022 | 001-39395 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 22, 2022 | Feb 17, 2022 | 000-25826 |
| 4 | Open Document | Open Filing | Feb 18, 2022 | Feb 16, 2022 | 001-35988 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2022 | Feb 15, 2022 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 16, 2021 | Nov 12, 2021 | 001-38907 |
| 4 | Open Document | Open Filing | Aug 20, 2021 | Aug 18, 2021 | 001-35988 | |
| 3 | Open Document | Open Filing | FORM 3 | Jul 23, 2021 | Jul 21, 2021 | 001-39395 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2021 | Feb 17, 2021 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2021 | Feb 15, 2021 | 000-25826 |
| 4 | Open Document | Open Filing | Jul 6, 2020 | Jul 1, 2020 | 001-35988 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2020 | Jun 9, 2020 | 001-38907 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 20, 2020 | Mar 18, 2020 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2020 | Feb 15, 2020 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 2, 2020 | Dec 30, 2019 | 001-38907 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 15, 2019 | Nov 13, 2019 | 001-38907 |
| 4 | Open Document | Open Filing | May 30, 2019 | May 24, 2019 | 001-35988 | |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | May 9, 2019 | May 9, 2019 | 001-38907 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 4, 2019 | Apr 3, 2019 | 000-25826 |
| 4 | Open Document | Open Filing | Feb 22, 2019 | Jan 30, 2019 | 001-35988 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2019 | Feb 15, 2019 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 17, 2018 | Dec 14, 2018 | 000-25826 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 23, 2018 | Oct 19, 2018 | 001-35988 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 12, 2018 | Mar 9, 2018 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2018 | Feb 15, 2018 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2018 | Feb 15, 2018 | 000-25826 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2018 | Feb 15, 2018 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 15, 2017 | May 12, 2017 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 27, 2017 | Apr 25, 2017 | 001-02979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 29, 2017 | Mar 27, 2017 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2017 | Mar 14, 2017 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2017 | Mar 1, 2017 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2017 | Mar 1, 2017 | 001-02979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2017 | Feb 15, 2017 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2016 | Apr 26, 2016 | 001-02979 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2016 | Mar 16, 2016 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2016 | Mar 14, 2016 | 000-31659 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2016 | Mar 14, 2016 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 8, 2016 | Mar 4, 2016 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2016 | Mar 1, 2016 | 000-31659 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 17, 2016 | Feb 15, 2016 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Jan 4, 2016 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 7, 2015 | Dec 3, 2015 | 001-02979 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2015 | Oct 29, 2015 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2015 | Jun 8, 2015 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2015 | Apr 28, 2015 | 001-02979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 17, 2015 | Mar 13, 2015 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2015 | Mar 14, 2015 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2015 | Mar 4, 2015 | 000-31659 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2015 | Feb 15, 2015 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 12, 2014 | Dec 11, 2014 | 001-02979 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 12, 2014 | Sep 10, 2014 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2014 | Jun 8, 2014 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2014 | Apr 29, 2014 | 001-02979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2014 | Mar 14, 2014 | 000-25826 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2014 | Mar 14, 2014 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Mar 4, 2014 | 000-31659 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 4, 2014 | Feb 28, 2014 | 001-02979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2014 | Feb 15, 2014 | 000-25826 |