| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2021 | 20 May 2021 | 000-50245 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Jun 2020 | 18 Jun 2020 | 000-50245 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Sep 2018 | 01 Sep 2018 | 000-50245 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2016 | 01 Sep 2016 | 000-50245 |