| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 14 Jun 2023 | 13 Jun 2023 | 001-11255 | |
| 4 | Open Document | Open Filing | 10 Jun 2022 | 10 Jun 2022 | 001-11255 | |
| 4 | Open Document | Open Filing | 05 Mar 2020 | 04 Mar 2020 | 001-11255 | |
| 4 | Open Document | Open Filing | 26 Feb 2018 | 20 Feb 2018 | 001-11255 | |
| 4 | Open Document | Open Filing | 18 Nov 2016 | 18 Nov 2016 | 001-11255 | |
| 3 | Open Document | Open Filing | 31 Oct 2016 | 25 Aug 2016 | 001-11255 |