| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 14, 2021 | Jul 12, 2021 | 000-03279 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2021 | Jun 30, 2021 | 000-03279 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 4, 2020 | Jul 31, 2020 | 000-03279 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 2, 2020 | Jun 30, 2020 | 000-03279 |
| 4 | Open Document | Open Filing | FORM 4 | Jul 31, 2019 | Jul 29, 2019 | 000-03279 |
| 3 | Open Document | Open Filing | FORM 3 | Jul 31, 2019 | Jul 29, 2019 | 000-03279 |