SEC EDGAR filings, ownership reports, and insider transactions for Wei Zhang.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Jan 2026 | 09 Jan 2026 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Oct 2025 | 10 Oct 2025 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 04 Aug 2025 | 31 Jul 2025 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Jul 2025 | 11 Jul 2025 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Apr 2025 | 11 Apr 2025 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2025 | 12 Mar 2025 | 000-20322 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 14 Jan 2025 | 10 Jan 2025 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Oct 2024 | 11 Oct 2024 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Aug 2024 | 01 Aug 2024 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jul 2024 | 12 Jul 2024 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Apr 2024 | 12 Apr 2024 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2024 | 13 Mar 2024 | 000-20322 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Jan 2024 | 12 Jan 2024 | 001-13057 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 17 Oct 2023 | 13 Oct 2023 | 001-13057 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2023 | 01 Oct 2023 | 000-20322 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2023 | 01 Oct 2023 | 000-20322 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Aug 2023 | 03 Aug 2023 | 001-13057 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Nov 2022 | 09 Nov 2022 | 001-13057 |