Brian Byun is listed as a director on 5 SEC Form D filings by 3 issuers between Aug 2018 and Apr 2026: AttackIQ, Inc. (Los Altos, CA — other technology — 2019–2021; $42.7M reported sold to 18 investors), Runsybil Corp. (San Francisco, CA — other technology — 2026; $30M reported sold to 5 investors) and Tightdb, Inc. (San Francisco, CA — industry reported as "Other" — 2018; $20M reported sold to 23 investors).
What this means A repeat sponsor — 3 separate companies raised money with this person listed as director, over about 8 years. Across those companies the filings report $92.7M sold in total.
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.
We compared 5 public filings for Brian Byun and found 6 differences, 1 worth asking the sponsor about: Form D filed 63 days after the first sale; and more below.
What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.