| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2021 | Jun 8, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 17, 2021 | Mar 15, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 2, 2021 | Jan 29, 2021 | 000-22193 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 9, 2020 | Jun 8, 2020 | 000-22193 |
| 4 | Open Document | Open Filing | 4 | Jun 3, 2020 | Jun 1, 2020 | 000-22193 |
| 3 | Open Document | Open Filing | 3 | Jun 3, 2020 | Jun 1, 2020 | 000-22193 |