Wedell-Wedellsborg Johan

Director at Y-mAbs Therapeutics, Inc. · on record since Sep 20, 2018
10% owner at Y-mAbs Therapeutics, Inc. · on record since Sep 20, 2018

Insider trading activity of Wedell-Wedellsborg Johan

Transactions on record: 54; since Jun 14, 2019

Open-market buys: 8; $2.7M

Open-market sells: 19; $24.1M

Companies traded: 1; last filing Sep 18, 2025

Figures computed from official regulatory filings — methodology.

Companies where Wedell-Wedellsborg Johan has traded

Y-mAbs Therapeutics, Inc.54 tx · $66.1M · Sep 18, 2025

Track record of Wedell-Wedellsborg Johan

Statistical track record

Free

Open-market buys: 8

Last buy: Dec 11, 2023

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Transaction history of Wedell-Wedellsborg Johan

Co-insiders of Wedell-Wedellsborg Johan

Ahmed MahiuddinY-mAbs Therapeutics, Inc.
Ber GerardY-mAbs Therapeutics, Inc.
Buschle MichaelY-mAbs Therapeutics, Inc.
Gad ThomasY-mAbs Therapeutics, Inc.
Gentilcore Douglas JY-mAbs Therapeutics, Inc.
GILL DAVID NY-mAbs Therapeutics, Inc.
Hamill LauraY-mAbs Therapeutics, Inc.

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Company	Filed	Type	Qty	Price	Value · USD	Src
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-14,545	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-4,559,233	8.60 USD	$39.2M	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-16,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-36,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-25,080	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-11,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-16,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-32,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-11,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-5,825	8.60 USD	$50.1K	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-13,950	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-33,450	—	—	SEC
Y-mAbs Therapeutics, Inc.	Jul 2, 2025	AwardD	33,450	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jul 2, 2025	Award	25,080	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 13, 2024	AwardD	14,545	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 13, 2024	Award	3,495	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Dec 12, 2023	Buy	6,455	6.85 USD	$44.2K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	6,183	6.50 USD	$40.2K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	102,863	7.01 USD	$721.1K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	18,503	6.99 USD	$129.3K	SEC
Y-mAbs Therapeutics, Inc.	Dec 1, 2023	Buy	51,837	5.97 USD	$309.5K	SEC
Y-mAbs Therapeutics, Inc.	Nov 29, 2023	Buy	62,516	5.49 USD	$343.2K	SEC
Y-mAbs Therapeutics, Inc.	Nov 29, 2023	Buy	30,671	5.81 USD	$178.2K	SEC
Y-mAbs Therapeutics, Inc.	Jun 9, 2023	Award	2,330	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 9, 2023	AwardD	13,950	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-14,545	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-4,559,233	8.60 USD	$39.2M	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-16,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-36,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-25,080	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-11,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-16,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-32,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-11,000	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	Other	-5,825	8.60 USD	$50.1K	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-13,950	—	—	SEC
Y-mAbs Therapeutics, Inc.	Sep 18, 2025	OtherD	-33,450	—	—	SEC
Y-mAbs Therapeutics, Inc.	Jul 2, 2025	AwardD	33,450	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jul 2, 2025	Award	25,080	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 13, 2024	AwardD	14,545	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 13, 2024	Award	3,495	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Dec 12, 2023	Buy	6,455	6.85 USD	$44.2K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	6,183	6.50 USD	$40.2K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	102,863	7.01 USD	$721.1K	SEC
Y-mAbs Therapeutics, Inc.	Dec 11, 2023	Buy	18,503	6.99 USD	$129.3K	SEC
Y-mAbs Therapeutics, Inc.	Dec 1, 2023	Buy	51,837	5.97 USD	$309.5K	SEC
Y-mAbs Therapeutics, Inc.	Nov 29, 2023	Buy	62,516	5.49 USD	$343.2K	SEC
Y-mAbs Therapeutics, Inc.	Nov 29, 2023	Buy	30,671	5.81 USD	$178.2K	SEC
Y-mAbs Therapeutics, Inc.	Jun 9, 2023	Award	2,330	0.00 USD	$0	SEC
Y-mAbs Therapeutics, Inc.	Jun 9, 2023	AwardD	13,950	0.00 USD	$0	SEC