| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 6, 2024 | Jun 5, 2024 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 9, 2023 | Jun 7, 2023 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 24, 2023 | May 24, 2023 | 000-21937 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jan 3, 2023 | Dec 28, 2022 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 30, 2022 | Dec 28, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2022 | Jun 1, 2022 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 9, 2021 | Nov 9, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 3, 2021 | Jun 1, 2021 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 15, 2020 | Dec 14, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 9, 2020 | Jun 5, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2020 | Jun 3, 2020 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 6, 2019 | Dec 4, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 7, 2019 | Jun 5, 2019 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 6, 2019 | Jun 4, 2019 | 000-21937 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Jul 11, 2018 | Jun 6, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 22, 2018 | Jun 6, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2018 | Jun 8, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2018 | Jun 5, 2018 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2017 | Jun 6, 2017 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2016 | Jun 8, 2016 | 000-21937 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 12, 2015 | Jun 10, 2015 | 000-21937 |
| 4 | Open Document | Open Filing | Jul 11, 2014 | Jun 11, 2014 | 000-21937 |