| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Dec 15, 2021 | Dec 15, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 13, 2021 | Sep 10, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 18, 2021 | Aug 17, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 17, 2021 | Jun 15, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 7, 2021 | May 5, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Feb 16, 2021 | Feb 11, 2021 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Nov 12, 2020 | Nov 10, 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Jun 9, 2020 | Jun 5, 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Mar 3, 2020 | Mar 2, 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Feb 27, 2020 | Feb 25, 2020 | 001-35172 |
| 4 | Open Document | Open Filing | 4 | Feb 13, 2020 | Feb 11, 2020 | 001-35172 |
| 3 | Open Document | Open Filing | 3 | Feb 3, 2020 | Jan 23, 2020 | 001-35172 |