| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4/A | Open Document | Open Filing | 4/A | May 6, 2025 | May 3, 2024 | 000-26966 |
| 4/A | Open Document | Open Filing | 4/A | May 6, 2025 | May 5, 2023 | 000-26966 |
| 4/A | Open Document | Open Filing | 4/A | May 6, 2025 | May 9, 2022 | 000-26966 |
| 4 | Open Document | Open Filing | 4 | May 6, 2025 | May 2, 2025 | 000-26966 |
| 4 | Open Document | Open Filing | 4 | Nov 6, 2024 | Nov 4, 2024 | 000-26966 |
| 144 | Open Document | Open Filing | Nov 4, 2024 | |||
| 4 | Open Document | Open Filing | 4 | May 7, 2024 | May 3, 2024 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2023 | May 5, 2023 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2022 | May 9, 2022 | 000-26966 |
| 4 | Open Document | Open Filing | Mar 28, 2022 | Mar 28, 2022 | 001-39585 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2021 | Apr 30, 2021 | 000-26966 |
| 3 | Open Document | Open Filing | Oct 5, 2020 | Oct 5, 2020 | 001-39585 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2020 | Apr 30, 2020 | 000-26966 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jun 10, 2019 | Jun 4, 2019 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 6, 2019 | Jun 4, 2019 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2019 | Feb 1, 2019 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 1, 2019 | Feb 1, 2019 | 001-38275 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 13, 2018 | Aug 9, 2018 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 4, 2018 | May 31, 2018 | 001-38275 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 7, 2018 | May 3, 2018 | 000-26966 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Nov 14, 2017 | Nov 14, 2017 | 001-38275 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 14, 2017 | Nov 10, 2017 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 14, 2017 | Aug 10, 2017 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 8, 2017 | May 4, 2017 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 29, 2016 | Nov 11, 2016 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 22, 2016 | Aug 18, 2016 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 6, 2016 | May 5, 2016 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2016 | Mar 7, 2016 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2016 | Feb 16, 2016 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2015 | Dec 15, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2015 | Nov 16, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 16, 2015 | Oct 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2015 | Oct 15, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 21, 2015 | Sep 17, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 17, 2015 | Sep 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2015 | Sep 15, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 19, 2015 | Aug 17, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 18, 2015 | Aug 17, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 30, 2015 | Jul 29, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 17, 2015 | Jul 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 17, 2015 | Jun 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2015 | May 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2015 | May 14, 2015 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 11, 2015 | May 7, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 16, 2015 | Apr 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2015 | Mar 16, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2015 | Feb 18, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 19, 2015 | Feb 17, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2015 | Feb 6, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2015 | Jan 29, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 20, 2015 | Jan 15, 2015 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2015 | Jan 15, 2015 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 24, 2014 | Dec 22, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 17, 2014 | Dec 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 16, 2014 | Dec 15, 2014 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 16, 2014 | Dec 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2014 | Nov 17, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 19, 2014 | Nov 17, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 17, 2014 | Oct 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 17, 2014 | Sep 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2014 | Sep 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2014 | Sep 12, 2014 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2014 | Sep 3, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 29, 2014 | Aug 27, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 19, 2014 | Aug 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2014 | Aug 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 17, 2014 | Jul 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 16, 2014 | Jul 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jul 1, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 17, 2014 | Jun 16, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 16, 2014 | Jun 16, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 12, 2014 | Jun 10, 2014 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2014 | May 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2014 | May 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 16, 2014 | May 15, 2014 | 000-12853 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2014 | May 7, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 17, 2014 | Apr 15, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 17, 2014 | Apr 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 18, 2014 | Mar 17, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2014 | Mar 17, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2014 | Mar 13, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2014 | Mar 13, 2014 | 000-12853 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2014 | Feb 18, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 20, 2014 | Feb 18, 2014 | 000-26966 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 31, 2014 | Jan 29, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2014 | Jan 15, 2014 | 001-35909 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 15, 2014 | Jan 15, 2014 | 000-26966 |