| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 28, 2021 | May 28, 2021 | 001-35444 |
| 4 | Open Document | Open Filing | FORM 4 | May 24, 2021 | May 20, 2021 | 001-35444 |
| 3/A | Open Document | Open Filing | FORM 3/A | May 24, 2021 | Mar 12, 2021 | 001-35444 |
| 3 | Open Document | Open Filing | FORM 3 | Mar 12, 2021 | Mar 4, 2021 | 001-35444 |