Insider · CIK 0001753224

Gad Thomas

Reports to the SEC for 1 company · PRINCETON, NJ

sec.gov

Transactions

Companies

Filings

CIK

0001753224

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−60K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.U Disposition from Tender	Director, CHIEF BUSINESS OFFICER	UDisposition from Tender	−60K sh	$8.60	−$516K	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−91.5K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−143K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.U Disposition from Tender	Director, CHIEF BUSINESS OFFICER	UDisposition from Tender	−245K sh	$8.60	−$2.11M	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−110K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−242K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−16K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−75K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−60.2K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−130K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−133K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−100K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.U Disposition from Tender	Director, CHIEF BUSINESS OFFICER	UDisposition from Tender	−67.7K sh	$8.60	−$582K	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−64K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Restricted Stock UnitsD Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−16K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Restricted Stock UnitsD Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−16K sh	—	—	0
2025-09-16	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Director, CHIEF BUSINESS OFFICER	DDisposition to Issuer	−108K sh	—	—	0
2025-06-03	Y-mAbs Therapeutics, Inc.M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	+103K sh	$2.00	+$206K	305,721
2025-06-03	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	−103K sh	—	—	0
2025-03-07	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−10.8K sh	$5.23	−$56.5K	202,721
2025-01-17	Y-mAbs Therapeutics, Inc.A Award	Director, CHIEF BUSINESS OFFICER	AAward	+32K sh	—	—	213,531
2025-01-17	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, CHIEF BUSINESS OFFICER	AAward	+64K sh	—	—	64,000
2024-09-19	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	−22.8K sh	—	—	143,169
2024-09-19	Y-mAbs Therapeutics, Inc.M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	+22.8K sh	$4.38	+$100K	181,531
2024-09-16	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−30K sh	$12.97	−$389K	67,681
2024-09-13	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−65K sh	$13.47	−$876K	97,681
2024-06-11	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−35K sh	$12.00	−$420K	162,681
2024-06-10	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−35K sh	$12.03	−$421K	197,681
2024-05-23	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−7,351 sh	$13.00	−$95.6K	232,681
2024-05-21	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−25K sh	$12.00	−$300K	240,032
2024-03-05	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−3,900 sh	$16.44	−$64.1K	158,700
2024-01-18	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, CHIEF BUSINESS OFFICER	AAward	+133K sh	—	—	132,500
2024-01-18	Y-mAbs Therapeutics, Inc.A Award	Director, CHIEF BUSINESS OFFICER	AAward	+22.1K sh	—	—	162,600
2023-12-21	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	−50K sh	—	—	103,000
2023-12-21	Y-mAbs Therapeutics, Inc.M Exercise/Conversion	Director, CHIEF BUSINESS OFFICER	MExercise/Conversion	+50K sh	$2.00	+$100K	140,500
2023-12-15	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−50K sh	$6.61	−$331K	265,032
2023-12-14	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−50K sh	$6.83	−$342K	315,032
2023-12-13	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−50K sh	$6.58	−$329K	365,032
2023-11-21	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−75K sh	$5.31	−$398K	415,032
2023-11-20	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−75K sh	$5.30	−$397K	490,032
2023-11-06	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, CHIEF BUSINESS OFFICER	AAward	+75K sh	—	—	75,000
2023-01-17	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, CHIEF BUSINESS OFFICER	AAward	+243K sh	—	—	243,200
2023-01-17	Y-mAbs Therapeutics, Inc.A Award	Director, CHIEF BUSINESS OFFICER	AAward	+40.5K sh	—	—	90,500
2022-05-18	Y-mAbs Therapeutics, Inc.Employee Stock Option (right to buy)A Award	Director, CHIEF BUSINESS OFFICER	AAward	+60K sh	—	—	60,000
2022-02-09	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−64.3K sh	$6.96	−$447K	565,032
2022-02-08	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−126K sh	$7.01	−$883K	629,308
2022-02-07	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−91K sh	$7.59	−$691K	755,171
2022-02-04	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−101K sh	$7.70	−$779K	846,202
2022-02-03	Y-mAbs Therapeutics, Inc.S Sale	Director, CHIEF BUSINESS OFFICER	SSale	−35.1K sh	$7.90	−$277K	947,306

Recent filings

Accepted (ET)
Sep 184
Gad Thomas0001753224-25-000004
SEC(opens sec.gov)
Jun 54
Gad Thomas0001415889-25-015849
SEC(opens sec.gov)

Companies

Y-mAbs Therapeutics, Inc.Director, CHIEF BUSINESS OFFICER

Address

C/O Y-MABS THERAPEUTICS, INC. 202 CARNEGIE CENTER, SUITE 301

PRINCETON, NJ, 08540