| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Aug 20, 2021 | Aug 18, 2021 | 001-39170 | |
| 4 | Open Document | Open Filing | Jul 20, 2021 | Jul 19, 2021 | 001-39170 | |
| 4 | Open Document | Open Filing | Jun 22, 2021 | Jun 18, 2021 | 001-39170 | |
| 4 | Open Document | Open Filing | Jan 27, 2021 | Jan 22, 2021 | 001-39170 | |
| 4 | Open Document | Open Filing | Dec 15, 2020 | Dec 14, 2020 | 001-39170 | |
| 4/A | Open Document | Open Filing | Dec 7, 2020 | Dec 4, 2020 | 001-39170 | |
| 4 | Open Document | Open Filing | Dec 7, 2020 | Dec 4, 2020 | 001-39170 | |
| 4 | Open Document | Open Filing | Oct 5, 2020 | Oct 1, 2020 | 001-39170 | |
| 4/A | Open Document | Open Filing | Sep 22, 2020 | Sep 14, 2020 | 001-39170 | |
| 4 | Open Document | Open Filing | Sep 22, 2020 | Jan 30, 2019 | 001-39170 | |
| 4 | Open Document | Open Filing | Sep 16, 2020 | Sep 14, 2019 | 001-39170 | |
| 4 | Open Document | Open Filing | Sep 3, 2019 | Aug 29, 2019 | 000-50045 | |
| 4 | Open Document | Open Filing | Oct 26, 2018 | Nov 28, 2016 | 000-50045 | |
| 4 | Open Document | Open Filing | Oct 26, 2018 | Nov 28, 2016 | 000-50045 | |
| 3 | Open Document | Open Filing | Oct 26, 2018 | Aug 8, 2016 | 000-50045 |