| 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 | 08 May 2023 | 04 May 2023 | 000-04041 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 06 May 2022 | 05 May 2022 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2021 | 06 May 2021 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2020 | 07 May 2020 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 May 2019 | 01 May 2019 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2018 | 03 May 2018 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2017 | 03 May 2017 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Sep 2016 | 19 Sep 2016 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2016 | 04 May 2016 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2015 | 24 Mar 2015 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2015 | 04 Mar 2015 | 000-04041 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2014 | 13 May 2014 | 000-04041 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2014 | 13 May 2014 | 000-04041 |