| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 14, 2024 | Mar 12, 2024 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2024 | Mar 1, 2024 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 14, 2023 | Mar 12, 2023 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2023 | Mar 1, 2023 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2022 | Mar 12, 2022 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2022 | Mar 1, 2022 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 21, 2021 | Dec 17, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 15, 2021 | Dec 13, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2021 | Apr 30, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2021 | Mar 12, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 16, 2021 | Mar 2, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2021 | Mar 1, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 23, 2020 | Apr 22, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 24, 2020 | Mar 12, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 4, 2019 | Nov 1, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 28, 2019 | Oct 25, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 15, 2019 | Oct 9, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 4, 2019 | Oct 2, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2019 | Jun 6, 2019 | 000-21937 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Mar 14, 2019 | Mar 10, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2019 | Mar 10, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 26, 2018 | Jul 25, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2018 | Mar 12, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 13, 2018 | Mar 10, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2018 | Mar 1, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 16, 2017 | Aug 15, 2017 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 14, 2017 | Aug 10, 2017 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2017 | Mar 10, 2017 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2017 | Mar 1, 2017 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 23, 2016 | Sep 22, 2016 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 16, 2016 | Sep 15, 2016 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 3, 2016 | Mar 1, 2016 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 2, 2015 | Aug 20, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 20, 2015 | Aug 19, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 18, 2015 | Aug 14, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 17, 2015 | Aug 13, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 14, 2015 | Aug 13, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2015 | Jun 1, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 6, 2015 | Mar 5, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 4, 2015 | Mar 2, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 9, 2015 | Feb 5, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | Oct 6, 2014 | Oct 3, 2014 | 000-21937 | |
| 4 | Open Document | Open Filing | Aug 5, 2014 | Aug 1, 2014 | 000-21937 | |
| 4 | Open Document | Open Filing | Jun 24, 2014 | Jun 23, 2014 | 000-21937 | |
| 4 | Open Document | Open Filing | Jun 23, 2014 | Jun 19, 2014 | 000-21937 | |
| 4 | Open Document | Open Filing | May 6, 2014 | May 5, 2014 | 000-21937 | |
| 4 | Open Document | Open Filing | Apr 4, 2014 | Nov 8, 2013 | 000-21937 | |
| 4 | Open Document | Open Filing | Mar 4, 2014 | Mar 3, 2014 | 000-21937 |