Lisby Steen [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
01/26/2023	Y-mAbs Therapeutics, Inc.	YMAB	Grant		32k	$4.55	$145.6k	01/26/2023
01/17/2023	Y-mAbs Therapeutics, Inc.	YMAB	Grant		35.7k	$4.70	$167.8k	01/17/2023
01/17/2023	Y-mAbs Therapeutics, Inc.	YMAB	Grant	Common stock	17.8k	$0.00	$0	01/17/2023
04/26/2022	Y-mAbs Therapeutics, Inc.	YMAB	Grant		20k	$9.51	$190.2k	04/26/2022
12/14/2021	Y-mAbs Therapeutics, Inc.	YMAB	Grant		32k	$15.73	$503.4k	12/14/2021
12/15/2020	Y-mAbs Therapeutics, Inc.	YMAB	Grant		20k	$53.88	$1.1M	12/15/2020
12/11/2018	Y-mAbs Therapeutics, Inc.	YMAB	Grant	Employee Stock Option (right to buy)	20k	$33.74	$674.8k	12/10/2019
12/11/2018	Y-mAbs Therapeutics, Inc.	YMAB	Grant	Employee Stock Option (right to buy)	20k	$21.97	$439.4k	12/11/2018