Brian Guan-Chyun Liu is Director at CG Oncology, Inc. (CGON). They have made 1 open-market trade across 1 company since 2025, most recently 2026-06-25.
CIK 0002007835
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $74.8M since 2025, never a sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CGON | 1,886,236 | $112.9M |
Shares reported on the most recent Form 4, priced at the 2026-06-29 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.