| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 22, 2021 | Sep 20, 2021 | 001-39139 | |
| 4 | Open Document | Open Filing | Mar 29, 2021 | Mar 25, 2021 | 001-39139 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 9, 2020 | Nov 5, 2020 | 001-39139 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 15, 2020 | Oct 14, 2020 | 001-39139 |