Insider · CIK 0001753185

Wedell-Wedellsborg Johan

Reports to the SEC for 1 company · NEW YORK, NY

sec.gov

Transactions

Companies

Filings

CIK

0001753185

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-09-16	Y-mAbs Therapeutics, Inc.U Disposition from Tender	Director, 10% Owner	UDisposition from Tender	−5,825 sh	$8.60	−$50.1K	0
2025-09-16	Y-mAbs Therapeutics, Inc.D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−25.1K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.U Disposition from Tender	Director, 10% Owner	UDisposition from Tender	−4.56M sh	$8.60	−$39.2M	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−36K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−32K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−16K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−11K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−11K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−16K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−14K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−14.5K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−33.5K sh	—	—	0
2025-06-30	Y-mAbs Therapeutics, Inc.A Award	Director, 10% Owner	AAward	+25.1K sh	—	—	30,905
2025-06-30	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+33.5K sh	—	—	33,450
2024-06-11	Y-mAbs Therapeutics, Inc.A Award	Director, 10% Owner	AAward	+3,495 sh	—	—	5,825
2024-06-11	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+14.5K sh	—	—	14,545
2023-12-11	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+6,455 sh	$6.85	+$44.2K	4,559,233
2023-12-11	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+103K sh	$7.01	+$721K	4,552,778
2023-12-08	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+18.5K sh	$6.99	+$129K	4,449,915
2023-12-07	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+6,183 sh	$6.50	+$40.2K	4,431,412
2023-11-29	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+51.8K sh	$5.97	+$309K	4,425,229
2023-11-28	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+30.7K sh	$5.81	+$178K	4,373,392
2023-11-27	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+62.5K sh	$5.49	+$343K	4,342,721
2023-06-08	Y-mAbs Therapeutics, Inc.A Award	Director, 10% Owner	AAward	+2,330 sh	—	—	2,330
2023-06-08	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+14K sh	—	—	13,950
2023-05-15	Y-mAbs Therapeutics, Inc.P Purchase	Director, 10% Owner	PPurchase	+102K sh	$9.65	+$981K	4,280,205
2022-07-15	Y-mAbs Therapeutics, Inc.Non-Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+16K sh	—	—	16,000
2021-06-10	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−11.2K sh	$36.15	−$406K	4,178,465
2021-06-10	Y-mAbs Therapeutics, Inc.Non-Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+16K sh	—	—	16,000
2021-06-09	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−117K sh	$36.19	−$4.22M	4,189,694
2021-06-08	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−33.3K sh	$35.28	−$1.17M	4,306,394
2021-06-07	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−72.4K sh	$34.15	−$2.47M	4,339,694
2021-06-04	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−3,841 sh	$34.03	−$131K	4,412,094
2021-06-03	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−30.7K sh	$33.19	−$1.02M	4,415,935
2021-06-01	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−6,864 sh	$35.57	−$244K	4,446,601
2021-05-28	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−25K sh	$36.34	−$908K	4,453,465
2021-03-10	Y-mAbs Therapeutics, Inc.J Other	Director, 10% Owner	JOther	−1.03M sh	—	—	4,478,465
2020-06-23	Y-mAbs Therapeutics, Inc.Non-Employee Stock Option (right to buy)A Award	Director, 10% Owner	AAward	+16K sh	—	—	16,000
2019-12-30	Y-mAbs Therapeutics, Inc.J Other	Director, 10% Owner	JOther	−498K sh	—	—	0
2019-12-30	Y-mAbs Therapeutics, Inc.J Other	Director, 10% Owner	JOther	+498K sh	—	—	5,508,392
2019-09-06	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−5,791 sh	$27.00	−$156K	498,392
2019-09-05	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−11.5K sh	$27.00	−$309K	504,183
2019-08-30	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−100 sh	$27.00	−$2,700	515,635
2019-08-29	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−89.1K sh	$26.58	−$2.37M	515,735
2019-08-28	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−29.6K sh	$27.02	−$798K	604,801
2019-08-27	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−19.8K sh	$27.18	−$538K	634,353
2019-08-22	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−990 sh	$27.75	−$27.5K	654,158
2019-08-21	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−60.1K sh	$27.83	−$1.67M	655,148
2019-08-21	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−60.1K sh	$27.83	−$1.67M	664,147
2019-08-20	Y-mAbs Therapeutics, Inc.S Sale	Director, 10% Owner	SSale	−108K sh	$27.42	−$2.96M	715,264

Recent filings

Accepted (ET)
Sep 184
Wedell-Wedellsborg Johan0001753185-25-000004
SEC(opens sec.gov)
Jul 24
Wedell-Wedellsborg Johan0001415889-25-019048
SEC(opens sec.gov)
Jun 134
Wedell-Wedellsborg Johan0001104659-24-071401
SEC(opens sec.gov)
Dec 124
Wedell-Wedellsborg Johan0001104659-23-125199
SEC(opens sec.gov)
Dec 114
Wedell-Wedellsborg Johan0001104659-23-125054
SEC(opens sec.gov)

Companies

Y-mAbs Therapeutics, Inc.Director, 10% Owner

Address

C/O Y-MABS THERAPEUTICS, INC. 230 PARK AVENUE, SUITE 3350

NEW YORK, NY, 10169