# William Hsu

William Hsu of Beijing, F4 appears across SEC filings — Form ADV advisers, Form D, Reg A, and crowdfunding offerings. 27 filing roles across Form D (24), Form ADV (3).

## Filings (27)

| Filed | Source | Entity | Role | Location |
| --- | --- | --- | --- | --- |
| 2025-03-27 | Form ADV | [CDH VENTURE MANAGEMENT COMPANY LIMITED](https://search.stillhousedata.com/firm/163805) | DIRECTOR OF CDH VENTURE MANAGEMENT COMPANY LIMITED | HONG KONG |
| 2025-03-31 | Form ADV | [MUCKER EARLY, LLC](https://search.stillhousedata.com/firm/309797) | MANAGER | AUSTIN, TX |
| 2025-03-31 | Form ADV | [MUCKERLAB, LLC](https://search.stillhousedata.com/firm/294882) | MANAGER | AUSTIN, TX |
| 2013-09-11 | Form D | [CDH Venture Partners III, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1557855&type=&dateb=&owner=include&count=40) | Director | Grand Cayman, E9 |
| 2024-03-11 | Form D | [Cephei QFII China Absolute Return Fund Ltd.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1628216&type=&dateb=&owner=include&count=40) | Director | Hong Kong, K3 |
| 2024-05-03 | Form D | [ServiceTitan, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1638826&type=&dateb=&owner=include&count=40) | Director | Glendale, CA |
| 2015-05-13 | Form D | [Mucker III, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1641938&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2021-04-28 | Form D | [Stax Health, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1720144&type=&dateb=&owner=include&count=40) | Director | Santa Monica, CA |
| 2018-02-14 | Form D | [MUCKER IV, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1731435&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2018-02-14 | Form D | [MUCKER SELECT, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1731419&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2018-01-18 | Form D | [MindMate Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1727902&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2020-04-21 | Form D | [Mucker Early II, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1809638&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2020-04-10 | Form D | [Mucker T2, LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1809108&type=&dateb=&owner=include&count=40) | Director | Santa Monica, CA |
| 2023-02-22 | Form D | [Scylla Technologies Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1823918&type=&dateb=&owner=include&count=40) | Director | Austin, TX |
| 2020-07-14 | Form D | [Mucker V, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1814044&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2021-02-02 | Form D | [Mucker E LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1839352&type=&dateb=&owner=include&count=40) | Director | SANTA MONICA, CA |
| 2021-06-29 | Form D | [Mucker P LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1869624&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2021-08-25 | Form D | [Mucker H LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1876188&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2023-05-31 | Form D | [Mucker B LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1911826&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2022-02-03 | Form D | [Mucker L LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1906127&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2022-01-25 | Form D | [Mucker H II LLC](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1898409&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2022-05-19 | Form D | [Mucker Select II, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1929439&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2022-04-28 | Form D | [Mucker VI, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1923902&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2023-01-12 | Form D | [Mucker Early III, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1956759&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2023-12-22 | Form D | [Sierra Labs Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2005260&type=&dateb=&owner=include&count=40) | Director | LOS ANGELES, CA |
| 2025-03-20 | Form D | [Mucker Pre-Seed VII, L.P.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2062698&type=&dateb=&owner=include&count=40) | Director | AUSTIN, TX |
| 2026-05-22 | Form D | [KYG Trade, Inc.](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=2069208&type=&dateb=&owner=include&count=40) | Related Person | NEWPORT BEACH, CA |


---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.