| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 17 Sep 2021 | 15 Sep 2021 | 001-39958 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Jun 2021 | 28 May 2021 | 001-39958 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Mar 2021 | 15 Mar 2021 | 001-39958 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Mar 2020 | 16 Mar 2020 | 000-56139 |