Insider Trading for YMAB
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)
No insider transactions in the past 3 months.
Key Insider Activity: Jun 30, 2025 to Sep 16, 2025
Wedell-Wedellsborg Johan
DirectorDirector, 10 Percent Owner:
-4.7M shares
13 transactions
WG Biotech ApS
DirectorDirector, 10 Percent Owner:
-4.6M shares
1 transactions
HEALY JAMES
DirectorDirector
-2.3M shares
12 transactions
Gad Thomas
ExecutiveDirector, Officer: Chief Business Officer
-1.4M shares
15 transactions
Rossi Michael J
ExecutiveChief Executive Officer
-1.2M shares
6 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 16, 2025 | Hamill Laura | DDirector | U-Tender | 5.8K | $8.60 | $50,095.00 | 0 | View |
| Sep 16, 2025 | Hamill Laura | DDirector | D-Return | 27.0K | $48.67 | $1,314,090.00 | 0 | View |
| Sep 16, 2025 | Hamill Laura | DDirector | D-Return | 25.1K | $0.00 | $0.00 | 0 | View |
Sep 16, 2025 | Locked | — | — | — | — | — | — | — |
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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 YMAB stock, though this may be part of planned diversification.