| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2022 | Jun 1, 2022 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2021 | Jun 1, 2021 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 25, 2020 | Jun 23, 2020 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2020 | May 29, 2020 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 4, 2020 | Apr 30, 2020 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 1, 2020 | Mar 31, 2020 | 000-29440 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 7, 2019 | Aug 5, 2019 | 000-29440 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 5, 2019 | May 29, 2019 | 000-29440 |