<SEC-DOCUMENT>0001104659-18-056144-index.html : 20180911
<SEC-HEADER>0001104659-18-056144.hdr.sgml : 20180911
<ACCEPTANCE-DATETIME>20180911134212
ACCESSION NUMBER:		0001104659-18-056144
CONFORMED SUBMISSION TYPE:	8-A12B
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180911
DATE AS OF CHANGE:		20180911

FILER:

	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

	FILING VALUES:
		FORM TYPE:		8-A12B
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38650
		FILM NUMBER:		181064568

	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>8-A12B
<SEQUENCE>1
<FILENAME>a18-5676_108a12b.htm
<DESCRIPTION>8-A12B
<TEXT>
Document 1 - file: a18-5676_108a12b.htm

</DOCUMENT>
</SEC-DOCUMENT>