| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 9, 2023 | May 5, 2023 | 000-51315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 22, 2023 | Mar 20, 2023 | 000-51315 |
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 12, 2022 | Oct 7, 2022 | 000-51315 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 11, 2022 | Oct 7, 2022 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2022 | Mar 20, 2022 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2022 | Mar 15, 2022 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 8, 2021 | Sep 3, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 16, 2021 | Jun 14, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2021 | Mar 20, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2021 | Mar 12, 2021 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2020 | Dec 10, 2020 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2020 | Mar 20, 2020 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2020 | Mar 14, 2020 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 12, 2020 | Mar 10, 2020 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2019 | Mar 20, 2019 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 18, 2019 | Mar 14, 2019 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 14, 2019 | Mar 12, 2019 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 30, 2018 | Aug 28, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 3, 2018 | Apr 3, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 22, 2018 | Mar 20, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 20, 2018 | Mar 19, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2018 | Mar 15, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2018 | Mar 14, 2018 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2017 | Mar 19, 2017 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2017 | Mar 14, 2017 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2016 | Mar 19, 2016 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 16, 2016 | Mar 15, 2016 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 23, 2015 | Mar 19, 2015 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2015 | Mar 15, 2015 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 21, 2014 | Mar 19, 2014 | 000-51315 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 17, 2014 | Mar 15, 2014 | 000-51315 |