| 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 | 12 May 2022 | 11 May 2022 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Feb 2022 | 01 Feb 2022 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2022 | 05 Jan 2022 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2021 | 11 May 2021 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Feb 2021 | 01 Feb 2021 | 001-16537 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2020 | 11 May 2020 | 001-16537 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2020 | 11 May 2020 | 001-16537 |