| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 31, 2023 | Jan 28, 2023 | 001-34767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 8, 2022 | Mar 4, 2022 | 001-34767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Feb 7, 2022 | Feb 3, 2022 | 001-34767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 5, 2021 | Jan 1, 2021 | 001-34767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jan 9, 2019 | Jan 7, 2019 | 001-34767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 13, 2018 | Mar 9, 2018 | 001-34767 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 13, 2018 | Mar 9, 2018 | 001-34767 |