<SEC-DOCUMENT>0001104659-20-076461-index.html : 20200624
<SEC-HEADER>0001104659-20-076461.hdr.sgml : 20200624
<ACCEPTANCE-DATETIME>20200624164801
ACCESSION NUMBER:		0001104659-20-076461
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200623
FILED AS OF DATE:		20200624
DATE AS OF CHANGE:		20200624

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wedell-Wedellsborg Johan
		CENTRAL INDEX KEY:			0001753185

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38650
		FILM NUMBER:		20986100

	MAIL ADDRESS:	
		STREET 1:		RUNGSTED STRANDVEJ 113
		CITY:			RUNGSTED KYST
		STATE:			G7
		ZIP:			2960

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>a4.xml
<DESCRIPTION>4
<TEXT>
Document 1 - file: a4.html

Document 1 - RAW XML: a4.xml

</DOCUMENT>
</SEC-DOCUMENT>