As of September 29, 2026, the three largest insider holders of CGON are Hong Fang Song (Director, 5.84Mn shares), Capital Global Life Sciences Fund Iv, L.P. Decheng (TenPercentOwner, 4.96Mn shares), Brian Guan-Chyun Liu (Director, 1.89Mn 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Sep, 2026 | Leonard E Post | Director | Acquired M | 1,000 | $0.60 | $600 | 1,000 | Direct |
| 15 Sep, 2026 | Leonard E Post | Director | Disposed S | 1,000 | $72.98 | $72.98K | 0 | Direct |
| 15 Sep, 2026 | Leonard E Post | Director | Disposed M | 1,000 | $0.00 | $0 | 103,077 | Direct |
| 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 |
| 10 Jul, 2026 | James Mulay | Director | Acquired M | 24,165 | $26.63 | $643.51K | 24,165 | Direct |
| 10 Jul, 2026 | James Mulay | Director | Disposed S | 24,165 | $75.16 | $1.82Mn | 0 | Direct |
| 10 Jul, 2026 | James Mulay | Director | Disposed M | 24,165 | $0.00 | $0 | 0 | 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 |
| 15 Jun, 2026 | James Mulay | Director | Acquired M | 654 | $3.72 | $2.43K | 654 | Direct |