James Huang insider trades: Connect Biopharma Holdings (CNTB) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where James reports to the SEC
and 2 more companies
Open-market buys and sales
22 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 29, 2026 | CNTB | ↑ Buy | 150,000 | $2.48 | $372K | Indirect | Jun 2, 2026 (4d) |
| May 7, 2026 | ATRA | ↓ Sell | 313,446 | $10.10 | $3.2M | Indirect | May 11, 2026 (4d) |
| Mar 31, 2026 | CNTB | ↑ Buy | 1,160,000 | $3.45 | $4.0M | Indirect | Apr 1, 2026 (1d) |
| Jan 12, 2026 | ATRA | ↓ Sell | 80,554 | $6.07 | $489K | Indirect | Jan 14, 2026 (2d) |
| Aug 15, 2025 | ATRA | ↑ Buy | 55,000 | $12.19 | $670K | Indirect | Aug 19, 2025 (4d) |
| Jul 17, 2025 | ATRA | ↑ Buy | 19,335 | $9.64 | $186K | Indirect | Jul 21, 2025 (4d) |
| Sep 8, 2022 | CASI | ↑ Buy | 55,573 | $4.13 | $230K | Indirect | Sep 8, 2022 (0d) |
| Sep 2, 2022 | CASI | ↑ Buy | 37,196 | $3.74 | $139K | Indirect | Sep 2, 2022 (0d) |
| Aug 26, 2022 | CASI | ↑ Buy | 44,527 | $3.75 | $167K | Indirect | Aug 26, 2022 (0d) |
| Aug 23, 2022 | CASI | ↑ Buy | 234,221 | $3.33 | $779K | Indirect | Aug 23, 2022 (0d) |
| Oct 19, 2021 | WINT | ↑ Buy | 50,000 | $1.90 | $95K | Direct | Oct 19, 2021 (0d) |
| Sep 1, 2021 | ZIOP | ↑ Buy | 100,000 | $1.71 | $171K | Direct | Sep 3, 2021 (2d) |
| Mar 31, 2021 | WINT | ↑ Buy | 150,000 | $2.36 | $354K | Direct | Apr 2, 2021 (2d) |
| Oct 23, 2020 | WINT | ↑ Buy | 1,000 | $6.67 | $7K | Direct | Oct 27, 2020 (4d) |
| Jun 4, 2020 | WINT | ↑ Buy | 12,400 | $7.32 | $91K | Direct | Jun 5, 2020 (1d) |
| May 22, 2020 | WINT | ↑ Buy | 275,862 | $7.25 | $2.0M | Via Panacea Venture Healthcare Fund I L. | May 27, 2020 (5d) |
| Feb 18, 2020 | WINT | ↑ Buy | 400 | $3.84 | $2K | Direct | Feb 20, 2020 (2d) |
| Feb 7, 2020 | WINT | ↑ Buy | 500 | $4.05 | $2K | Direct | Feb 7, 2020 (0d) |
| Jan 17, 2020 | WINT | ↑ Buy | 2,058 | $4.18 | $9K | Direct | Jan 21, 2020 (4d) |
| Dec 31, 2019 | WINT | ↑ Buy | 15,442 | $4.05 | $63K | Direct | Jan 3, 2020 (3d) |
| Dec 30, 2019 | WINT | ↑ Buy | 5,000 | $3.74 | $19K | Direct | Dec 31, 2019 (1d) |
| Dec 6, 2019 | WINT | ↑ Buy | 1,655,629 | $3.02 | $5.0M | Via Panacea Venture Healthcare Fund I L. | Dec 10, 2019 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About James Huang's insider trades
James Huang is an insider at Connect Biopharma Holdings (CNTB). Since Dec 6, 2019, James has reported 20 open-market purchases worth $14.4M and 2 sales worth $3.7M on SEC Form 4. In the last 12 months: 2 buys ($4.4M) and 2 sales ($3.7M).
Their filings also include grants and awards (22 filings), option exercises (3 filings), other transactions (3 filings), shares withheld for taxes (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CNTB insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.