| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 | 20 Oct 2021 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Oct 2021 | 15 Oct 2021 | 001-39497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Sep 2021 | 14 Sep 2021 | 001-39497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 31 Aug 2021 | 27 Aug 2021 | 001-39497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 May 2021 | 25 May 2021 | 001-39497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 25 May 2021 | 21 May 2021 | 001-39497 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 May 2021 | 19 May 2021 | 001-39497 |
| SC 13D | Open Document | Open Filing | SC 13D | 29 Sep 2020 | ||
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Sep 2020 | 18 Sep 2020 | 001-39497 |