<SEC-DOCUMENT>0001104659-20-136420-index.html : 20201216
<SEC-HEADER>0001104659-20-136420.hdr.sgml : 20201216
<ACCEPTANCE-DATETIME>20201216180328
ACCESSION NUMBER:		0001104659-20-136420
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20201215
FILED AS OF DATE:		20201216
DATE AS OF CHANGE:		20201216

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Herman Philip Karl
		CENTRAL INDEX KEY:			0001799303

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38650
		FILM NUMBER:		201393573

	MAIL ADDRESS:	
		STREET 1:		C/O Y-MABS THERAPEUTICS, INC.
		STREET 2:		230 PARK AVENUE, SUITE 3350
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10169

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Y-mAbs Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001722964
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				474619612
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		750 THIRD AVENUE
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		212-847-9841

	MAIL ADDRESS:	
		STREET 1:		750 THIRD AVENUE
		STREET 2:		9TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2038652-2_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm2038652-2_4seq1.html

Document 1 - RAW XML: tm2038652-2_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>