| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Aug 6, 2021 | Aug 4, 2021 | 001-38996 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2020 | Jun 30, 2020 | 001-38996 |
| 4 | Open Document | Open Filing | FORM 4 | Nov 25, 2019 | Nov 21, 2019 | 001-38996 |
| 3 | Open Document | Open Filing | FORM 3 | Jul 24, 2019 | Jul 24, 2019 | 001-38996 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Jun 8, 2018 | May 31, 2018 | 001-31978 |