| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Dec 2021 | 09 Dec 2021 | 001-35023 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2019 | 01 Apr 2019 | 001-35023 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2019 | 20 Feb 2019 | 001-35023 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jun 2017 | 01 May 2017 | 001-35023 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2017 | 05 Sep 2014 | 001-35023 |