| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | Jul 25, 2025 | Jul 24, 2025 | 000-19681 | 
| 4 | Open Document | Open Filing | 4 | Feb 24, 2025 | Feb 20, 2025 | 000-19681 | 
| 4 | Open Document | Open Filing | 4 | Jan 17, 2025 | Jan 16, 2025 | 000-19681 | 
| 144 | Open Document | Open Filing | Dec 18, 2024 | |||
| 4 | Open Document | Open Filing | 4 | Nov 21, 2024 | Nov 20, 2024 | 000-19681 | 
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Feb 21, 2024 | Dec 26, 2023 | 000-19681 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 27, 2023 | Dec 26, 2023 | 000-19681 | 
| 144 | Open Document | Open Filing | Dec 26, 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 20, 2023 | Nov 16, 2023 | 000-19681 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 14, 2023 | Nov 11, 2023 | 000-19681 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 8, 2023 | Feb 6, 2023 | 000-19681 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 18, 2022 | Nov 17, 2022 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 16, 2021 | Nov 15, 2021 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2021 | Nov 10, 2021 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 11, 2021 | Mar 10, 2021 | 000-19681 | 
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 18, 2021 | Nov 11, 2020 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2020 | Nov 11, 2020 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 16, 2020 | Jul 16, 2020 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 9, 2019 | Dec 6, 2019 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 14, 2019 | Nov 13, 2019 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 10, 2019 | May 9, 2019 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 16, 2018 | Nov 15, 2018 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2018 | Jun 29, 2018 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 20, 2017 | Nov 16, 2017 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 13, 2017 | Nov 12, 2017 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2017 | May 8, 2017 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 20, 2017 | Mar 17, 2017 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2016 | Nov 16, 2016 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2016 | Feb 2, 2016 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2015 | Nov 11, 2015 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2015 | Apr 30, 2015 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 14, 2014 | Nov 12, 2014 | 000-19681 | 
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2014 | Feb 3, 2014 | 000-19681 |