Summary
Latest filing:
Brian Guan-Chyun Liu files SEC Form 4 reports at CG Oncology, Inc. (CGON). 4 SEC Form 4 filings on record going back to 2024, most recently on 29 June 2026. Most recent open-market trade: bought $24.81M of CGON on 29 June 2026. Lifetime open-market purchases: $74.81M.
Recent Transactions
2Every recent SEC Form 4 transaction Brian Guan-Chyun Liu has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Brian Guan-Chyun Liu files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- James Mulay - $4.54M of CGON open-market activity in the last 12 months
- Leonard E. Post - $1.23M of CGON open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Brian Guan-Chyun Liu?
Brian Guan-Chyun Liu is a corporate insider of CG Oncology, Inc. (CGON). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Brian Guan-Chyun Liu submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Brian Guan-Chyun Liu been buying or selling stock?
Recorded transactions: 2 open-market purchases ($74.81M) and 0 open-market sales across all tracked filings.
Where can I see all of Brian Guan-Chyun Liu's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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