Insider Trading for JBIO
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
No insider transactions in the past 30 days.
Quarterly Activity (3 Months)
Acquisitions: 221.9K shares
Dispositions: 0 shares
Net: 221.9K shares
Insiders have been net buyers over the quarter, suggesting potential confidence in medium-term business fundamentals.
Key Insider Activity: Apr 28, 2025 to Jun 25, 2026
Fairmount Funds Management LLC
DirectorDirector, 10 Percent Owner:
-15.3M shares
8 transactions
Dahms Bradford D.
ExecutiveCorporate Officer
+790.7K shares
4 transactions
Kocinsky Hetal
ExecutiveCorporate Officer
-539.8K shares
2 transactions
Quick Jonathan
ExecutiveOfficer: See Remarks
-404.8K shares
2 transactions
Eisner Mark
DirectorDirector
+47.7K shares
2 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Jun 25, 2026 | Eisner Mark | DDirector | Award/Grant | 47.7K | $21.81 | $1,039,791.75 | 47.7K | View |
| Jun 25, 2026 | Eisner Mark | Unknown | Unknown | 0 | $0.00 | $0.00 | 0 | View |
| Jun 9, 2026 | CAIN CHRISTOPHER W. | DDirector | Award/Grant | 34.8K | $15.22 | $530,310.46 | 34.8K | View |
Jun 9, 2026 | Locked | — | — | — | — | — | — | — |
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Feb 12, 2026 | Locked | — | — | — | — | — | — | — |
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Oct 6, 2025 | Locked | — | — | — | — | — | — | — |
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Jul 14, 2025 | Locked | — | — | — | — | — | — | — |
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May 16, 2025 | Locked | — | — | — | — | — | — | — |
Apr 29, 2025 | Locked | — | — | — | — | — | — | — |
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Apr 28, 2025 | Locked | — | — | — | — | — | — | — |
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Apr 28, 2025 | Locked | — | — | — | — | — | — | — |
Apr 28, 2025 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net sellers of JBIO stock, though this may be part of planned diversification.