| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 31 Mar 2022 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Jan 2022 | 13 Dec 2021 | 001-38971 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 30 Dec 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Dec 2020 | 21 Dec 2020 | 001-38971 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 23 Dec 2020 | 21 Dec 2020 | 001-38971 |