Over the trailing 12 months, CNTB insiders bought $4.37 million worth of shares (1.31Mn shares) in open-market trades, with no open-market sales.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | James Huang | Director | 0 | 13,310,000 | 13,310,000 | 99.2% | 02 Jun, 2026 |
| 2 | Kleanthis Gabriel Xanthopoulos | Director | 91,554 | 0 | 91,554 | 0.7% | 01 Oct, 2026 |
| 3 | Jean I Liu | Director | 20,763 | 0 | 20,763 | 0.2% | 01 Oct, 2026 |
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 |
|---|---|---|---|---|---|---|---|---|
| 30 Sep, 2026 | Jean I Liu | Director | Acquired A | 8,984 | $0.00 | $0 | 20,763 | Direct |
| 30 Sep, 2026 | Kleanthis Gabriel Xanthopoulos | Director | Acquired A | 5,000 | $0.00 | $0 | 91,554 | Direct |
| 30 Jun, 2026 | Jean I Liu | Director | Acquired A | 6,718 | $0.00 | $0 | 11,779 | Direct |
| 30 Jun, 2026 | Kleanthis Gabriel Xanthopoulos | Director | Acquired A | 3,738 | $0.00 | $0 | 86,554 | Direct |
| 29 May, 2026 | James Huang | Director | Acquired P | 150,000 | $2.48 | $371.61K | 13,310,000 | Indirect |
| 31 Mar, 2026 | Jean I Liu | Director | Acquired A | 5,061 | $0.00 | $0 | 5,061 | Direct |
| 31 Mar, 2026 | Kleanthis Gabriel Xanthopoulos | Director | Acquired A | 2,816 | $0.00 | $0 | 82,816 | Direct |
| 31 Mar, 2026 | James Huang | Director | Acquired P | 1,160,000 | $3.45 | $4.00Mn | 13,160,000 | Indirect |