| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 17, 2021 | May 13, 2021 | 001-38231 |
| 3 | Open Document | Open Filing | FORM 3 | Mar 15, 2021 | Mar 3, 2021 | 001-38231 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | Sep 14, 2020 |