| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 23 Nov 2022 | 16 Nov 2022 | 000-55802 | |
| 5 | Open Document | Open Filing | 03 Feb 2021 | 31 Dec 2020 | 000-55802 | |
| 4 | Open Document | Open Filing | 25 Sep 2019 | 23 Sep 2019 | 000-55802 | |
| 4 | Open Document | Open Filing | 13 Sep 2019 | 11 Sep 2019 | 000-55802 | |
| 4 | Open Document | Open Filing | 31 Dec 2018 | 27 Dec 2018 | 000-55802 | |
| 4 | Open Document | Open Filing | 27 Dec 2018 | 24 Dec 2018 | 000-55802 | |
| 4 | Open Document | Open Filing | 20 Dec 2018 | 18 Dec 2018 | 000-55802 | |
| 4 | Open Document | Open Filing | 14 Dec 2018 | 19 Nov 2018 | 000-55802 | |
| 3 | Open Document | Open Filing | 23 Jun 2017 | 23 Jun 2017 | 000-55802 |