| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - HGOH | 15 Mar 2022 | 14 Mar 2022 | 000-50189 |
| 4 | Open Document | Open Filing | FORM 4 - HGOH | 07 Mar 2022 | 04 Mar 2022 | 000-50189 |
| 4 | Open Document | Open Filing | FORM 4 - HGOH | 28 Feb 2022 | 24 Feb 2022 | 000-50189 |
| 4 | Open Document | Open Filing | FORM 4 - HGOH | 11 Jan 2022 | 07 Jan 2022 | 000-50189 |
| 4 | Open Document | Open Filing | FORM 4 - HGOH | 07 Jan 2022 | 05 Jan 2022 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2021 | 31 Aug 2021 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2021 | 07 May 2021 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Apr 2021 | 28 Apr 2021 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 08 Jan 2021 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jan 2020 | 09 Jan 2020 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Dec 2019 | 06 Dec 2019 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Oct 2019 | 31 Oct 2019 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Oct 2019 | 21 Oct 2019 | 000-50189 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2019 | 07 Jan 2019 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Jan 2019 | 07 Jan 2018 | 000-50189 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2018 | 07 Aug 2018 | 000-50189 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Aug 2018 | 01 Aug 2018 | 000-50189 |