| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jan 2022 | 29 Dec 2021 | 001-35853 |
| 4 | Open Document | Open Filing | FORM 4 | 31 May 2018 | 29 May 2018 | 001-35853 |
| 3 | Open Document | Open Filing | FORM 3 | 30 Mar 2018 | 23 Mar 2018 | 001-35853 |