Liu Brian Guan-Chyun bought nearly $50 million in CG Oncology ($CGON) shares through one open market purchase on September 11, 2025. This ranks him 25th among nearly 5,000 insiders for largest buys over the past year, well above the average of $1.46 million across about 3.3 transactions. He reported no open market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 11, 2025 | CG Oncology, Inc. | $CGON | Liu Brian Guan-Chyun | Not found | P | Common Stock | 1515151 | $33.00 | 1,515,151.0000 | 76,216,855 | 9999.99% | 1.99% |
| June 5, 2025 | CG Oncology, Inc. | $CGON | Liu Brian Guan-Chyun | Not found | A | Director Stock Option (right to buy) | 24165 | $0.00 | 24,165.0000 | 76,216,855 | 9999.99% | 0.03% |
| Oct. 4, 2024 | CG Oncology, Inc. | $CGON | Liu Brian Guan-Chyun | Not found | A | Stock Option (Right to Buy) | 15600 | $0.00 | 15,600.0000 | 0 | 9999.99% | 0.00% |