Bihua Chen insider trades: Corbus Pharmaceuticals Holdings (CRBP) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Bihua reports to the SEC
and 34 more companies
Open-market buys and sales
71 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 29, 2026 | CRBP | ↓ Sell | 425,000 | $4.10 | $1.7M | Indirect | Nov 2, 2026 (4d) |
| Aug 10, 2026 | BLSM | ↑ Buy | 312,500 | $16.00 | $5.0M | Indirect | Aug 10, 2026 (0d) |
| Apr 28, 2026 | DRUG | ↓ Sell | 109,331 | $89.50 | $9.8M | Indirect | Apr 30, 2026 (2d) |
| Jan 26, 2026 | HLXC | ↑ Buy | 800,000 | $10.00 | $8.0M | Indirect | Jan 28, 2026 (2d) |
| Dec 11, 2025 | CRBP | ↓ Sell | 30,029 | $11.46 | $344K | Indirect | Dec 15, 2025 (4d) |
| Dec 4, 2025 | EYPT | ↓ Sell | 60,000 | $15.70 | $942K | Indirect | Dec 8, 2025 (4d) |
| Sep 30, 2025 | MLTX | ↓ Sell | 6,499,978 | $7.21 | $46.9M | Indirect | Oct 1, 2025 (1d) |
| May 15, 2025 | OKUR | ↓ Sell | 1,813,439 | $1.85 | $3.4M | Indirect | May 19, 2025 (4d) |
| May 12, 2025 | OKUR | ↓ Sell | 24,300 | $1.99 | $48K | Indirect | May 14, 2025 (2d) |
| Feb 14, 2025 | AARD | ↑ Buy | 187,500 | $16.00 | $3.0M | Indirect | Feb 19, 2025 (5d) |
| Nov 4, 2024 | DRUG | ↑ Buy | 184,331 | $21.70 | $4.0M | Indirect | Nov 6, 2024 (2d) |
| Oct 16, 2024 | DRUG | ↑ Buy | 422,591 | $7.65 | $3.2M | Indirect | Oct 17, 2024 (1d) |
| Sep 27, 2024 | BIOA | ↑ Buy | 450,000 | $18.00 | $8.1M | Indirect | Oct 1, 2024 (4d) |
| Sep 20, 2024 | CRBP | ↑ Buy | 350,000 | $20.01 | $7.0M | Indirect | Sep 24, 2024 (4d) |
| May 6, 2024 | EYPT | ↑ Buy | 850,000 | $11.86 | $10.1M | Indirect | May 8, 2024 (2d) |
| Apr 18, 2024 | EYPT | ↑ Buy | 581,765 | $18.03 | $10.5M | Indirect | Apr 22, 2024 (4d) |
| Apr 1, 2024 | IMRX | ↓ Sell | 400,000 | $2.90 | $1.2M | Indirect | Apr 3, 2024 (2d) |
| Mar 15, 2024 | IMRX | ↓ Sell | 909,091 | $3.02 | $2.7M | Indirect | Mar 18, 2024 (3d) |
| Mar 8, 2024 | CRBP | ↑ Buy | 550,000 | $42.41 | $23.3M | Indirect | Mar 11, 2024 (3d) |
| Feb 13, 2024 | HLXB | ↑ Buy | 2,400,000 | $10.00 | $24.0M | Indirect | Feb 13, 2024 (0d) |
| Feb 2, 2024 | CRBP | ↑ Buy | 750,000 | $19.00 | $14.3M | Indirect | Feb 6, 2024 (4d) |
| Jan 26, 2024 | CRBP | ↑ Buy | 282,632 | $32.24 | $9.1M | Indirect | Jan 30, 2024 (4d) |
| Jan 11, 2024 | EYPT | ↑ Buy | 855,000 | $19.94 | $17.1M | Indirect | Jan 11, 2024 (0d) |
| Dec 8, 2023 | EYPT | ↑ Buy | 588,235 | $17.00 | $10.0M | Indirect | Dec 12, 2023 (4d) |
| Dec 4, 2023 | EYPT | ↑ Buy | 1,919,057 | $21.82 | $41.9M | Indirect | Dec 6, 2023 (2d) |
| Oct 23, 2023 | AMAM | ↑ Buy | 1,307,311 | $6.99 | $9.1M | Indirect | Oct 25, 2023 (2d) |
| Oct 5, 2023 | MLTX | ↑ Buy | 58,839 | $59.90 | $3.5M | Indirect | Oct 10, 2023 (5d) |
| Oct 4, 2023 | MLTX | ↑ Buy | 293,212 | $57.30 | $16.8M | Indirect | Oct 4, 2023 (0d) |
| Sep 18, 2023 | AMAM | ↑ Buy | 2,152,738 | $9.12 | $19.6M | Indirect | Sep 19, 2023 (1d) |
| Jun 30, 2023 | MLTX | ↑ Buy | 800,000 | $50.00 | $40.0M | Indirect | Jul 5, 2023 (5d) |
| Jun 26, 2023 | MLTX | ↑ Buy | 450,000 | $45.63 | $20.5M | Indirect | Jun 28, 2023 (2d) |
| Apr 20, 2023 | AMAM | ↑ Buy | 5,215,189 | $11.30 | $59.0M | Indirect | Apr 20, 2023 (0d) |
| Apr 17, 2023 | AMAM | ↑ Buy | 2,597,896 | $9.75 | $25.3M | Indirect | Apr 17, 2023 (0d) |
| Mar 30, 2023 | BMEA | ↑ Buy | 400,000 | $30.00 | $12.0M | Indirect | Apr 3, 2023 (4d) |
| Mar 21, 2023 | MLTX | ↑ Buy | 827,100 | $20.28 | $16.8M | Indirect | Mar 22, 2023 (1d) |
| Mar 16, 2023 | AMAM | ↑ Buy | 1,000,000 | $10.21 | $10.2M | Indirect | Mar 16, 2023 (0d) |
| Dec 13, 2022 | ERAS | ↑ Buy | 307,692 | $6.50 | $2.0M | Indirect | Dec 20, 2022 (7d) |
| Apr 5, 2022 | MLTX | ↑ Buy | 2,850,000 | $10.00 | $28.5M | Indirect | Apr 7, 2022 (2d) |
| Oct 25, 2021 | VTYX | ↑ Buy | 625,000 | $16.00 | $10.0M | Indirect | Oct 27, 2021 (2d) |
| Oct 13, 2021 | PYXS | ↑ Buy | 450,000 | $16.00 | $7.2M | Indirect | Oct 15, 2021 (2d) |
| Sep 17, 2021 | TYRA | ↑ Buy | 312,500 | $16.00 | $5.0M | Indirect | Sep 21, 2021 (4d) |
| Aug 10, 2021 | ERAS | ↑ Buy | 200,000 | $22.10 | $4.4M | Indirect | Aug 10, 2021 (0d) |
| Aug 3, 2021 | IMRX | ↑ Buy | 550,000 | $15.00 | $8.3M | Indirect | Aug 5, 2021 (2d) |
| Jul 26, 2021 | ERAS | ↓ Sell | 200,000 | $18.77 | $3.8M | Indirect | Aug 10, 2021 (15d) |
| Jul 20, 2021 | ERAS | ↑ Buy | 950,000 | $16.00 | $15.2M | Indirect | Jul 22, 2021 (2d) |
| Jul 2, 2021 | AVTE | ↑ Buy | 500,000 | $14.00 | $7.0M | Indirect | Jul 7, 2021 (5d) |
| Jun 29, 2021 | ELEV | ↑ Buy | 250,000 | $16.00 | $4.0M | Indirect | Jul 1, 2021 (2d) |
| Jun 28, 2021 | GLUE | ↑ Buy | 600,000 | $19.00 | $11.4M | Indirect | Jun 30, 2021 (2d) |
| Jun 21, 2021 | VERV | ↑ Buy | 275,000 | $19.00 | $5.2M | Indirect | Jun 23, 2021 (2d) |
| Apr 27, 2021 | RAIN | ↑ Buy | 450,000 | $17.00 | $7.7M | Indirect | Apr 29, 2021 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CRBP insiders
Open-market trades in the last 12 months
About Bihua Chen's insider trades
Bihua Chen is an insider at Corbus Pharmaceuticals Holdings (CRBP). Since Nov 7, 2016, Bihua has reported 60 open-market purchases worth $665.2M and 11 sales worth $73.2M on SEC Form 4. In the last 12 months: 2 buys ($13.0M) and 4 sales ($12.8M).
Their filings also include conversions (28 filings), grants and awards (13 filings), other transactions (4 filings), option exercises (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 CRBP insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.