| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2021 | May 17, 2021 | 001-36254 |
| 4 | Open Document | Open Filing | FORM 4 | May 1, 2020 | Apr 30, 2020 | 001-36254 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 1, 2019 | Aug 1, 2019 | 001-36254 |
| 3 | Open Document | Open Filing | FORM 3 | Aug 1, 2019 | Aug 1, 2019 | 001-36254 |