CRBP insider buying and SEC filings, explained
Corbus Pharmaceuticals Holdings, Inc. · CIK 1595097
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$126K
Insiders who bought
1
Sold (not marked 10b5-1)
$2.2M
Planned sales (10b5-1)
$526K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 29, 2026 | Sale | Bihua Chen (Former 10% Owner) sold 425,000 shares indirectly at about $4.10 ($1.7M). Indirect holdings down 18% to 1,919,971 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Nov 2, 2026, 4:05 PM ET |
| Sep 14, 2026 | Planned (10b5-1) | Yong Ben (Director) sold 2,000 shares at about $7.84 ($16K), marked as a 10b5-1 plan trade. Holdings down 18% to 9,383 shares. | SEC filing Filed Sep 15, 2026 |
| Aug 11, 2026 | Purchase (code P) | Nishant C Saxena (Chief Business Officer) bought 2,600 shares at $9.63 ($25K), reported as a purchase (code P). Holdings up 3% to 77,900 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 12, 2026 |
| Aug 7, 2026 | Planned (10b5-1) | Yuval Cohen (CEO and Director) sold 17,000 shares at about $10.08 ($171K), marked as a 10b5-1 plan trade. Holdings down 10% to 157,316 shares. | SEC filing Filed Aug 10, 2026 |
| Aug 7, 2026 | Planned (10b5-1) | Sean F. Moran (CFO) sold 12,000 shares at about $10.08 ($121K), marked as a 10b5-1 plan trade. Holdings down 12% to 84,694 shares. | SEC filing Filed Aug 10, 2026 |
| Jun 10, 2026 | Planned (10b5-1) | Winston Kung (Director) sold 2,026 shares at about $7.91 ($16K), marked as a 10b5-1 plan trade. Holdings down 14% to 12,140 shares. | SEC filing Filed Jun 11, 2026 |
| Jun 10, 2026 | Planned (10b5-1) | John Kenneth Jenkins (Director) sold 4,800 shares at about $7.91 ($38K), marked as a 10b5-1 plan trade. Holdings down 56% to 3,833 shares. | SEC filing Filed Jun 11, 2026 |
| Jun 10, 2026 | Planned (10b5-1) | Anne Altmeyer (Director) sold 2,412 shares at about $7.91 ($19K), marked as a 10b5-1 plan trade. Holdings down 24% to 7,579 shares. | SEC filing Filed Jun 11, 2026 |
| Jun 2–3, 2026 | Purchase (code P) | Nishant C Saxena (Chief Business Officer) bought 13,500 shares between Jun 2 and Jun 3 at about $7.50 ($101K), reported as a purchase (code P). Holdings up 22% to 75,300 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 3, 2026 |
| Mar 2, 2026 | Sale | Dominic Smethurst (Chief Medical Officer) sold 6,097 shares at about $8.30 ($51K). Holdings down 6% to 89,790 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 4, 2026 |
| Feb 17, 2026 | Sale | Ian Hodgson (President / COO) sold 847 shares at about $7.38 ($6K). Holdings down 2% to 51,080 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 18, 2026 |
| Feb 13, 2026 | Planned (10b5-1) | Sean F. Moran (CFO) sold 4,701 shares at about $7.78 ($37K), marked as a 10b5-1 plan trade. Holdings down 5% to 96,694 shares. | SEC filing Filed Feb 18, 2026 |
| Feb 13, 2026 | Planned (10b5-1) | Yuval Cohen (CEO and Director) sold 13,871 shares at about $7.78 ($108K), marked as a 10b5-1 plan trade. Holdings down 7% to 174,316 shares. | SEC filing Filed Feb 18, 2026 |
| Feb 3, 2026 | Sale | Dominic Smethurst (Chief Medical Officer) sold 3,285 shares at about $8.09 ($27K). Holdings down 3% to 95,887 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 4, 2026 |
| Feb 3, 2026 | Sale | Ian Hodgson (President / COO) sold 2,415 shares at about $8.09 ($20K). Holdings down 4% to 51,927 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 4, 2026 |
| Dec 11, 2025 | Sale | Bihua Chen (10% owner) sold 30,029 shares indirectly at about $11.46 ($344K). Indirect holdings down 1% to 2,344,971 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 2 other reporting owners. | SEC filing Filed Dec 15, 2025 |
12 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
Follow CRBP in the Insider Ledger app
Get the appA plain-English brief of insider purchases, 8-Ks and red flags at the companies you pick. No account needed.