Wilms Joris - Insider Non-Derivative Transactions at Y-mAbs Therapeutics, Inc. (YMAB) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Sep 16, 2025, Wilms Joris's relationship to Y-mAbs Therapeutics, Inc. (YMAB) is Officer (SVP & CHIEF OPERATING OFFICER), and currently has 0 shares of Common stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other YMAB insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Wilms Joris - Insider Non-Derivative Transactions of YMAB Common stock

Wilms Joris - Insider Non-Derivative Transactions at YMAB

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Sep 17, 2025	U -- (Common Stock)	12799	8.6	0
Sep 17, 2025	Disposition -- (Common Stock)	39301	0	0
Jan 18, 2025	Acquisition -- (Common Stock)	21500	0	52100
Aug 27, 2024	Sell -- (Common Stock)	5000	14.69	30600
Jan 19, 2024	Acquisition -- (Common Stock)	17800	0	35600
Jan 18, 2023	Acquisition -- (Common stock)	17800	0	17800