| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 04 Jun 2025 | 02 Jun 2025 | 000-55843 |
| 4 | Open Document | Open Filing | 4 | 27 May 2025 | 27 May 2025 | 000-55843 |
| 4 | Open Document | Open Filing | 4 | 09 May 2025 | 07 May 2025 | 000-55843 |
| 4 | Open Document | Open Filing | 4 | 03 Jun 2024 | 30 May 2024 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2023 | 01 Jun 2023 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2022 | 02 Jun 2022 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jun 2021 | 03 Jun 2021 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jun 2020 | 31 May 2019 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Jun 2020 | 04 Jun 2020 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2019 | 31 May 2019 | 000-55843 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 22 Feb 2019 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Dec 2018 | 14 Dec 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Dec 2018 | 04 Dec 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Nov 2018 | 28 Nov 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Sep 2018 | 13 Sep 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Aug 2018 | 22 Aug 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Jun 2018 | 13 Jun 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Jun 2018 | 31 May 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Mar 2018 | 07 Mar 2018 | 000-55843 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Mar 2018 | 27 Feb 2018 | 000-55843 |
| SC 13G | Open Document | Open Filing | FUN-KAI LIU - SC 13G | 14 Feb 2018 | ||
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 31 Oct 2017 | 19 Sep 2017 | 000-55843 |