| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 23, 2022 | Jun 22, 2022 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 15, 2022 | Mar 11, 2022 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 6, 2021 | Aug 6, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 24, 2021 | Jun 22, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 29, 2021 | Mar 12, 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 22, 2020 | Jun 22, 2020 | 000-21810 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 22, 2020 | Jun 22, 2020 | 000-21810 |