| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 22 Oct 2021 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Oct 2021 | 12 Oct 2021 | 001-40887 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Oct 2021 | 07 Oct 2021 | 001-40887 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Dec 2012 | 05 Dec 2012 | 001-07572 |