| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Aug 2021 | 19 Aug 2021 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 19 Mar 2020 | 17 Mar 2020 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Nov 2019 | 26 Nov 2019 | 001-37899 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 11 Oct 2019 | 04 Oct 2019 | 001-37899 |
| 3 | Open Document | Open Filing | FORM 3 | 11 Oct 2019 | 04 Oct 2019 | 001-37899 |