| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Nov 22, 2021 | Nov 18, 2021 | 000-56128 | |
| 4 | Open Document | Open Filing | Jun 7, 2021 | Jun 3, 2021 | 001-39418 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | Oct 26, 2020 | ||
| 4 | Open Document | Open Filing | Oct 26, 2020 | Oct 23, 2020 | 001-39418 | |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | Sep 10, 2020 | ||
| 3 | Open Document | Open Filing | Sep 3, 2020 | Aug 31, 2020 | 000-56128 | |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jul 30, 2020 | Jul 30, 2020 | 001-39418 |