| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Jun 2022 | 08 Jun 2022 | 001-40402 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Apr 2022 | 22 Apr 2022 | 001-40402 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Apr 2022 | 19 Apr 2022 | 001-40402 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Jul 2021 | 01 Jul 2021 | 001-40402 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 18 May 2021 | 18 May 2021 | 001-40402 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 May 2021 | 13 May 2021 | 001-40402 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 May 2021 | 13 May 2021 | 001-40402 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2014 | 29 Dec 2014 | 000-30392 |