SEC EDGAR filings, ownership reports, and insider transactions for Haohan Xu.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3/A | Open Document | Open Filing | 16 Jan 2024 | 01 Jan 2024 | 001-39137 | |
| 3 | Open Document | Open Filing | 05 Jan 2024 | 01 Jan 2024 | 001-39137 | |
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | 24 Feb 2021 | ||
| SC 13D/A | Open Document | Open Filing | SCHEDULE 13D/A | 13 Mar 2020 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 30 May 2019 | ||
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 24 Apr 2019 |