| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Apr 1, 2025 | Mar 31, 2025 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2024 | May 16, 2024 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2023 | May 18, 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2023 | Feb 17, 2023 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2022 | May 18, 2022 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2021 | May 20, 2021 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2020 | May 15, 2020 | 000-26946 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2019 | May 15, 2019 | 000-26946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 13, 2018 | Nov 12, 2018 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 2, 2018 | Oct 31, 2018 | 000-49602 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 27, 2018 | Feb 15, 2018 | 000-26946 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2018 | Feb 14, 2018 | 000-26946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 2, 2017 | Oct 31, 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2017 | Aug 4, 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2017 | Apr 28, 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 30, 2017 | Jan 27, 2017 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 15, 2016 | Nov 11, 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 1, 2016 | Oct 28, 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 2, 2016 | Jul 29, 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 3, 2016 | Apr 29, 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 2, 2016 | Jan 29, 2016 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 4, 2015 | Nov 2, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 27, 2015 | Oct 23, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2015 | Aug 3, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 4, 2015 | Jul 31, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2015 | Apr 30, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2015 | Apr 24, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2015 | Feb 26, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 3, 2015 | Jan 30, 2015 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 4, 2014 | Oct 31, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 28, 2014 | Oct 24, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 4, 2014 | Jul 31, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 2, 2014 | Apr 30, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 30, 2014 | Apr 28, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 4, 2014 | Jan 31, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 30, 2014 | Jan 27, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 30, 2014 | Jan 28, 2014 | 000-49602 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 10, 2014 | Jan 8, 2014 | 000-49602 |