| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 May 2022 | 14 May 2022 | 001-14461 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 11 May 2022 | 10 May 2022 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2021 | 14 May 2021 | 001-14461 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2021 | 16 Feb 2021 | 001-14461 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Feb 2021 | 16 Feb 2021 | 001-14461 |