| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2023 | Jun 1, 2023 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2023 | Mar 1, 2023 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 5, 2022 | Dec 1, 2022 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 9, 2022 | Sep 7, 2022 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 6, 2022 | Sep 1, 2022 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2022 | Jun 1, 2022 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2022 | Mar 1, 2022 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 2, 2021 | Dec 1, 2021 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 3, 2021 | Sep 1, 2021 | 000-18415 |
| 4/A | Open Document | Open Filing | FORM 4/A | Sep 3, 2021 | Jun 1, 2021 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2021 | Jun 1, 2021 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2021 | Mar 1, 2021 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2020 | Dec 1, 2020 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 3, 2020 | Sep 1, 2020 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 5, 2020 | Aug 4, 2020 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 3, 2020 | Jun 1, 2020 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 3, 2020 | Mar 2, 2020 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 3, 2019 | Dec 2, 2019 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 5, 2019 | Sep 3, 2019 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 5, 2019 | Jun 3, 2019 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2019 | Mar 29, 2019 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 3, 2019 | Dec 31, 2018 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 2, 2018 | Sep 28, 2018 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 3, 2018 | Jun 29, 2018 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 3, 2018 | Mar 30, 2018 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2018 | Jan 2, 2018 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 4, 2017 | Oct 2, 2017 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 6, 2017 | Jul 3, 2017 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 5, 2017 | Apr 3, 2017 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Dec 31, 2016 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 4, 2016 | Sep 30, 2016 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 5, 2016 | Jun 30, 2016 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2016 | Mar 31, 2016 | 000-18415 |
| 5 | Open Document | Open Filing | FORM 5 | Feb 13, 2015 | Dec 31, 2014 | 000-18415 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2014 | Nov 25, 2014 | 000-18415 |
| 5 | Open Document | Open Filing | FORM 5 | Feb 21, 2014 | Dec 31, 2013 | 000-18415 |