| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2025 | May 19, 2025 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2024 | May 8, 2024 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 12, 2023 | May 11, 2023 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2022 | Mar 15, 2022 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 28, 2022 | Feb 24, 2022 | 000-21238 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 2, 2022 | Jan 31, 2022 | 001-36270 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 8, 2021 | Jun 4, 2021 | 001-36270 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 17, 2021 | May 13, 2021 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 28, 2020 | Aug 26, 2020 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2020 | Aug 20, 2020 | 000-21238 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 11, 2020 | Jun 10, 2020 | 001-36270 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 20, 2020 | 000-21238 |
| 3 | Open Document | Open Filing | FORM 3 | Jan 7, 2020 | Jan 1, 2020 | 001-36270 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2019 | May 22, 2019 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2018 | May 23, 2018 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 28, 2017 | Nov 24, 2017 | 000-21238 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2017 | May 24, 2017 | 000-21238 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 29, 2016 | Aug 26, 2016 | 001-36088 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2016 | May 18, 2016 | 000-21238 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 27, 2015 | Aug 25, 2015 | 001-36088 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 19, 2014 | Nov 17, 2014 | 001-36088 |
| 3 | Open Document | Open Filing | FORM 3 | Nov 12, 2014 | Oct 16, 2014 | 001-36088 |