Yichen Lu is listed as a director on 1 SEC Form D filing by 1 issuer in Oct 2010: Vaccine Technologies International Ltd. (George Town, Grand Cayman, Cayman Islands (as filed: E9) — biotechnology — 2010; $17.8M reported sold to 8 investors).
What this means One deal on file with the SEC, filed Oct 2010. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.
Listed alongside George Chang (1 shared filing) and Raymond Long Sing Tang (1 shared filing).
What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Yichen. Each name links to their own page.
Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA) — none found.
What this means Nothing turned up where we looked (3 sources). That does not prove there is nothing — it means none was found in those sources on that date.