| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jul 5, 2023 | Jun 30, 2023 | 000-26099 | |
| 4/A | Open Document | Open Filing | Jun 16, 2023 | Jun 14, 2023 | 000-26099 | |
| 4 | Open Document | Open Filing | Jun 15, 2023 | Jun 14, 2023 | 000-26099 | |
| 4 | Open Document | Open Filing | FORM 4 | Sep 16, 2022 | Sep 16, 2022 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jun 23, 2022 | Jun 23, 2022 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 23, 2022 | Jun 23, 2022 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 25, 2022 | Mar 23, 2022 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 23, 2022 | Dec 29, 2021 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 8, 2021 | Dec 7, 2021 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 1, 2021 | Sep 30, 2021 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 15, 2021 | Mar 12, 2021 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 30, 2020 | Dec 30, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 10, 2020 | Dec 9, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 2, 2020 | Oct 30, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 1, 2020 | Aug 31, 2020 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 6, 2020 | Aug 4, 2020 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 6, 2020 | May 4, 2020 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 4, 2020 | May 4, 2020 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Aug 4, 2020 | Aug 4, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 4, 2020 | Aug 4, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | May 5, 2020 | May 4, 2020 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 25, 2019 | Nov 25, 2019 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 12, 2019 | Sep 12, 2019 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 14, 2019 | Mar 14, 2019 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 28, 2018 | Sep 28, 2018 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 27, 2018 | Sep 27, 2018 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2018 | May 3, 2018 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 21, 2017 | Dec 21, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 20, 2017 | Dec 20, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 7, 2017 | Dec 7, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 6, 2017 | Dec 6, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 18, 2017 | Sep 18, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 30, 2017 | Aug 29, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 11, 2017 | Aug 11, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | May 10, 2017 | May 9, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 18, 2017 | Jan 17, 2017 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 27, 2016 | Jun 27, 2016 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 8, 2016 | Jan 7, 2016 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 4, 2015 | Dec 2, 2015 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 9, 2015 | Sep 9, 2015 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Jun 23, 2015 | Jun 22, 2015 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 22, 2015 | Jun 22, 2015 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 2, 2015 | Dec 31, 2014 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Dec 15, 2014 | Dec 15, 2014 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 13, 2014 | Jun 12, 2014 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2014 | May 27, 2014 | 000-26099 |
| 4/A | Open Document | Open Filing | FORM 4/A | Apr 14, 2014 | Apr 14, 2014 | 000-26099 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 14, 2014 | Apr 14, 2014 | 000-26099 |