William Siu Lung Chun
This page summarises the Hong Kong Securities and Futures Commission (SFC) public register record for William Siu Lung Chun (秦紹龍), a licensed Responsible Officer with CE reference AXK422. Currently licensed at 1 firm(s): Theia Securities Limited. Active regulated activities: Type 1 - Dealing in securities; Type 4 - Advising on securities; Type 9 - Asset management. This person has 14.9 years of SFC licence history. Total licence records on file: 11.
Information
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Licence history
| Firm | Role | Regulated activity | From | To |
|---|---|---|---|---|
| Theia Securities Limited 遠源證券有限公司 |
RO | Type 1 - Dealing in securities | 2024-08-20 | present |
| Theia Securities Limited 遠源證券有限公司 |
RO | Type 4 - Advising on securities | 2024-08-20 | present |
| Theia Securities Limited 遠源證券有限公司 |
RO | Type 9 - Asset management | 2024-08-20 | present |
| Theia Securities Limited 遠源證券有限公司 |
Rep | Type 1 - Dealing in securities | 2024-07-12 | 2024-08-20 |
| Theia Securities Limited 遠源證券有限公司 |
Rep | Type 4 - Advising on securities | 2024-07-12 | 2024-08-20 |
| Theia Securities Limited 遠源證券有限公司 |
Rep | Type 9 - Asset management | 2024-07-12 | 2024-08-20 |
| Quam Securities Limited 華富建業證券有限公司 |
Rep | Type 9 - Asset management | 2018-06-01 | 2024-03-28 |
| Quam Securities Limited 華富建業證券有限公司 |
Rep | Type 1 - Dealing in securities | 2018-04-11 | 2024-03-28 |
| Quam Securities Limited 華富建業證券有限公司 |
Rep | Type 2 - Dealing in futures contracts | 2018-04-11 | 2024-03-28 |
| Haitong International Securities Company Limited 海通國際證券有限公司 |
Rep | Type 1 - Dealing in securities | 2011-06-08 | 2018-04-06 |
| Haitong International Futures Limited 海通國際期貨有限公司 |
Rep | Type 2 - Dealing in futures contracts | 2011-06-08 | 2018-04-06 |
Worked alongside
The 7 closest colleagues, strongest tie first — individuals licensed at the same firm as William Siu Lung Chun during overlapping periods. Ranked by how long they overlapped and how similar their regulated activities were, with shared time at a smaller firm weighted more than at a large one. See the detailed formula.
| Name | Shared firm | Overlap |
|---|---|---|
| Dong Wen Chen | Theia Securities Limited | 2024–present |
| Junpeng Chen | Theia Securities Limited | 2024–present |
| Sze Wai Choy | Theia Securities Limited | 2024–present |
| Tao Lin | Theia Securities Limited | 2025–present |
| Barry Ho Cheong Leung | Theia Securities Limited | 2025–2026 |
| Kong Kit Tsang | Theia Securities Limited | 2024 |
| Yihang Zhang | Theia Securities Limited | 2025–2026 |