| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 8, 2025 | Sep 5, 2025 | 000-20388 | |
| 4 | Open Document | Open Filing | Jun 9, 2025 | Jun 5, 2025 | 000-20388 | |
| 4 | Open Document | Open Filing | May 9, 2025 | May 9, 2025 | 000-16244 | |
| 4 | Open Document | Open Filing | Apr 28, 2025 | Apr 24, 2025 | 000-20388 | |
| 4 | Open Document | Open Filing | Mar 31, 2025 | Mar 28, 2025 | 000-20388 | |
| 4 | Open Document | Open Filing | Mar 10, 2025 | Mar 7, 2025 | 000-20388 | |
| 4 | Open Document | Open Filing | Dec 9, 2024 | Dec 6, 2024 | 000-20388 | |
| 4 | Open Document | Open Filing | Sep 9, 2024 | Sep 6, 2024 | 000-20388 | |
| 4 | Open Document | Open Filing | Jun 10, 2024 | Jun 7, 2024 | 000-20388 | |
| 4 | Open Document | Open Filing | May 10, 2024 | May 10, 2024 | 000-16244 | |
| 4 | Open Document | Open Filing | Apr 29, 2024 | Apr 25, 2024 | 000-20388 | |
| 4 | Open Document | Open Filing | Mar 11, 2024 | Mar 8, 2024 | 000-20388 | |
| 4 | Open Document | Open Filing | Dec 11, 2023 | Dec 8, 2023 | 000-20388 | |
| 4 | Open Document | Open Filing | Sep 11, 2023 | Sep 8, 2023 | 000-20388 | |
| 4 | Open Document | Open Filing | Jun 12, 2023 | Jun 9, 2023 | 000-20388 | |
| 4 | Open Document | Open Filing | May 15, 2023 | May 12, 2023 | 000-16244 | |
| 4 | Open Document | Open Filing | May 3, 2023 | May 2, 2023 | 000-20388 | |
| 144 | Open Document | Open Filing | May 2, 2023 | |||
| 4 | Open Document | Open Filing | May 1, 2023 | Apr 27, 2023 | 000-20388 | |
| 4 | Open Document | Open Filing | Apr 26, 2023 | Apr 25, 2023 | 000-20388 | |
| 144 | Open Document | Open Filing | Apr 25, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2023 | Mar 10, 2023 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 13, 2022 | Dec 12, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 13, 2022 | Sep 12, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2022 | Jun 13, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2022 | Jun 6, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2022 | Jun 2, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2022 | May 27, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | May 17, 2022 | May 13, 2022 | 000-16244 | |
| 4 | Open Document | Open Filing | FORM 4 | May 2, 2022 | Apr 28, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2022 | Mar 11, 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 6, 2021 | Dec 3, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 5, 2021 | Nov 4, 2021 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 4, 2021 | Nov 2, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 25, 2021 | Oct 22, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 7, 2021 | Sep 3, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2021 | Jun 7, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 10, 2021 | May 7, 2021 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2021 | Apr 22, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2021 | Mar 8, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 8, 2021 | Jan 6, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 5, 2021 | Jan 4, 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 8, 2020 | Dec 4, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 25, 2020 | Nov 24, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2020 | Nov 16, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 10, 2020 | Nov 9, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 9, 2020 | Nov 5, 2020 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 8, 2020 | Sep 4, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2020 | Jun 8, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 8, 2020 | May 8, 2020 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 27, 2020 | Apr 23, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 9, 2020 | Mar 6, 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 10, 2019 | Dec 9, 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 8, 2019 | Nov 7, 2019 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 9, 2019 | Sep 9, 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 10, 2019 | Jun 10, 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 8, 2019 | May 6, 2019 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 30, 2019 | Apr 26, 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 11, 2019 | Mar 11, 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 7, 2018 | Dec 7, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 9, 2018 | Nov 8, 2018 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 7, 2018 | Sep 7, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2018 | Jun 8, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 4, 2018 | May 4, 2018 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2018 | Apr 27, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 13, 2018 | Mar 13, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 13, 2018 | Mar 12, 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2018 | Dec 31, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 8, 2017 | Dec 8, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 13, 2017 | Nov 9, 2017 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 11, 2017 | Sep 11, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 14, 2017 | Jun 9, 2017 | 000-20388 |
| 4/A | Open Document | Open Filing | FORM 4/A - | May 19, 2017 | May 5, 2017 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 - | May 9, 2017 | May 5, 2017 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 26, 2017 | Apr 25, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 25, 2017 | Apr 22, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2017 | Feb 21, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2017 | Feb 17, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2017 | Feb 16, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Jan 3, 2017 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 16, 2016 | Dec 14, 2016 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 14, 2016 | Nov 10, 2016 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 24, 2016 | Oct 5, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 21, 2016 | Sep 20, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 20, 2016 | Sep 16, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 16, 2016 | Sep 15, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 15, 2016 | Sep 13, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 24, 2016 | Jun 23, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 6, 2016 | May 6, 2016 | 000-16244 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 28, 2016 | Apr 26, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 27, 2016 | Apr 25, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 26, 2016 | Apr 22, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 21, 2016 | Mar 18, 2016 | 000-20388 |
| 4 | Open Document | Open Filing | 4 | Dec 14, 2015 | Dec 14, 2015 | 001-04639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 10, 2015 | Dec 8, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 3, 2015 | Oct 30, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 2, 2015 | Oct 29, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 30, 2015 | Oct 28, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2015 | Sep 4, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 8, 2015 | Jun 5, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 15, 2015 | May 14, 2015 | 000-16244 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2015 | May 8, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 28, 2015 | Apr 24, 2015 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2014 | Dec 5, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | 4 | Dec 9, 2014 | Dec 8, 2014 | 001-04639 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 9, 2014 | Sep 5, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 9, 2014 | Jul 7, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 6, 2014 | Jun 6, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 - | May 9, 2014 | May 7, 2014 | 000-16244 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 30, 2014 | Apr 28, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2014 | Apr 25, 2014 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2014 | Mar 7, 2014 | 000-20388 |