As of August 29, 2026, CG Oncology's top three insider holders are Hong Fang Song (Director, 5.84Mn shares), Hong Fang Song (Director, 5.84Mn shares), Capital Global Life Sciences Fund Iv, L.P. Decheng (TenPercentOwner, 4.96Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Hong Fang Song | Director | 0 | 5,838,167 | 5,838,167 | 45.3% | 04 Sep, 2025 |
| 2 | Capital Global Life Sciences Fund Iv, L.P. Decheng | TenPercentOwner | 4,958,810 | 0 | 4,958,810 | 38.5% | 09 Apr, 2024 |
| 3 | Brian Guan-Chyun Liu | Director | 0 | 1,886,236 | 1,886,236 | 14.6% | 29 Jun, 2026 |
| 4 | Arthur Kuan | Chief Executive Officer | 198,916 | 0 | 198,916 | 1.5% | 13 Mar, 2026 |
| 5 | Corleen M. Roche | Cfo Secretary | 2,000 | 0 | 2,000 | 0.0% | 31 Jan, 2024 |
| 6 | Vijay Kasturi | Chief Medical Officer | 1,315 | 0 | 1,315 | 0.0% | 31 Jan, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Leonard E Post | Director | Acquired M | 1,000 | $0.60 | $600 | 1,000 | Direct |
| 14 Aug, 2026 | Leonard E Post | Director | Disposed S | 1,000 | $74.54 | $74.54K | 0 | Direct |
| 14 Aug, 2026 | Leonard E Post | Director | Disposed M | 1,000 | $0.00 | $0 | 104,077 | Direct |
| 15 Jul, 2026 | Leonard E Post | Director | Acquired M | 1,000 | $0.60 | $600 | 1,000 | Direct |
| 15 Jul, 2026 | Leonard E Post | Director | Disposed S | 1,000 | $71.17 | $71.17K | 0 | Direct |
| 15 Jul, 2026 | Leonard E Post | Director | Disposed M | 1,000 | $0.00 | $0 | 105,077 | Direct |
| 25 Jun, 2026 | Brian Guan-Chyun Liu | Director | Acquired P | 371,085 | $66.87 | $24.81Mn | 1,886,236 | Indirect |
| 24 Jun, 2026 | Leonard E Post | Director | Acquired M | 5,000 | $0.60 | $3.00K | 5,000 | Direct |
| 24 Jun, 2026 | Leonard E Post | Director | Disposed S | 5,000 | $70.00 | $350.00K | 0 | Direct |
| 24 Jun, 2026 | Leonard E Post | Director | Disposed M | 5,000 | $0.00 | $0 | 106,077 | Direct |
| 22 Jun, 2026 | Leonard E Post | Director | Acquired M | 5,000 | $0.60 | $3.00K | 5,000 | Direct |
| 22 Jun, 2026 | Leonard E Post | Director | Disposed S | 5,000 | $65.00 | $325.00K | 0 | Direct |
| 22 Jun, 2026 | Leonard E Post | Director | Disposed M | 5,000 | $0.00 | $0 | 111,077 | Direct |
| 04 Jun, 2026 | Brian Guan-Chyun Liu | Director | Acquired A | 9,354 | $0.00 | $0 | 9,354 | Direct |
| 04 Jun, 2026 | Christina Rossi | Director | Acquired A | 9,354 | $0.00 | $0 | 9,354 | Direct |
| 04 Jun, 2026 | Victor Edward Jr Tong | Director | Acquired A | 9,354 | $0.00 | $0 | 9,354 | Direct |
| 04 Jun, 2026 | Leonard E Post | Director | Acquired M | 1,000 | $0.60 | $600 | 1,000 | Direct |
| 04 Jun, 2026 | Susan E Graf | Director | Acquired A | 9,354 | $0.00 | $0 | 9,354 | Direct |
| 04 Jun, 2026 | Leonard E Post | Director | Disposed S | 1,000 | $54.50 | $54.50K | 0 | Direct |
| 04 Jun, 2026 | Leonard E Post | Director | Disposed M | 1,000 | $0.00 | $0 | 116,077 | Direct |