| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 10 Aug 2021 | 06 Aug 2021 | 000-30707 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2020 | 04 Aug 2020 | 000-30707 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Feb 2020 | 04 Feb 2020 | 000-30707 |
| 4 | Open Document | Open Filing | FORM 4 | 13 Feb 2017 | 09 Feb 2017 | 000-30707 |
| 3 | Open Document | Open Filing | FORM 3 | 13 Feb 2017 | 09 Feb 2017 | 000-30707 |