| 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 | 15 Aug 2023 | 11 Aug 2023 | 000-07928 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 15 Aug 2022 | 12 Aug 2022 | 000-07928 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 19 Jul 2022 | 19 Jul 2022 | 000-07928 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Aug 2021 | 10 Aug 2021 | 000-07928 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2020 | 11 Dec 2020 | 000-07928 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Aug 2020 | 04 Aug 2020 | 000-07928 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 May 2020 | 28 May 2020 | 000-07928 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 03 Mar 2020 | 000-07928 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 03 Mar 2020 | 000-07928 |