| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2023 | 23 Mar 2023 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Aug 2022 | 17 Aug 2022 | 001-16525 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2021 | 15 Jul 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jul 2021 | 15 Jul 2021 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2018 | 02 Apr 2018 | 001-16525 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jul 2016 | 19 Jul 2016 | 001-16525 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2013 | 29 Aug 2013 | 001-16525 |