| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 13, 2022 | Sep 13, 2022 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 16, 2022 | Aug 12, 2022 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 21, 2021 | Aug 12, 2021 | 001-35886 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 16, 2018 | Nov 14, 2018 | 001-35886 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 16, 2018 | Nov 14, 2018 | 001-35886 |