| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2023 | 31 May 2023 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Mar 2023 | 31 Mar 2023 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 May 2022 | 03 May 2022 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Sep 2021 | 08 Sep 2021 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2021 | 19 May 2021 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2021 | 12 Mar 2021 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Sep 2020 | 03 Sep 2020 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Sep 2019 | 16 Sep 2019 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jul 2019 | 28 Jun 2019 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2019 | 26 Jun 2019 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Sep 2018 | 19 Sep 2018 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | 000-12456 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2017 | 04 May 2017 | 000-12456 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 31 Mar 2017 | 24 Mar 2017 | 000-12456 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 31 Mar 2017 | 05 Aug 2013 | 000-12456 |