| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 26, 2021 | Aug 25, 2021 | 001-39727 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 25, 2020 | Nov 24, 2020 | 001-39727 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2020 | Nov 20, 2020 | 001-39727 |
| 3 | Open Document | Open Filing | Apr 23, 2020 | Apr 23, 2020 | 001-39271 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 23, 2020 | Mar 10, 2020 | 001-39244 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Mar 23, 2020 | Mar 5, 2020 | 001-39244 |