| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 27, 2021 | Dec 23, 2021 | 001-38824 |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | Dec 27, 2021 | ||
| 4 | Open Document | Open Filing | Dec 14, 2021 | Dec 10, 2021 | 001-38824 | |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13D | Dec 14, 2021 | ||
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | May 21, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 20, 2021 | May 18, 2021 | 001-38824 |
| SC 13D | Open Document | Open Filing | SC 13D | Dec 30, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 22, 2020 | Dec 21, 2020 | 001-38824 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 22, 2020 | Dec 21, 2020 | 001-38824 |