| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 09 Nov 2021 | 05 Nov 2021 | 000-20214 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Nov 2021 | 04 Nov 2021 | 000-20214 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 22 Jun 2021 | 17 Jun 2021 | 000-20214 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jul 2020 | 14 Jul 2020 | 000-20214 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Jul 2019 | 25 Jul 2019 | 000-20214 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2019 | 29 May 2019 | 000-20214 |