    <SEC-DOCUMENT>0001558370-20-011316-index.html : 20200930
    <SEC-HEADER>0001558370-20-011316.hdr.sgml : 20200930
    <ACCEPTANCE-DATETIME>20200929174957
    ACCESSION NUMBER:		0001558370-20-011316
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20200929
    FILED AS OF DATE:		20200930
    DATE AS OF CHANGE:		20200929

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GENMAB A/S
    		CENTRAL INDEX KEY:			0001434265
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				000000000

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38976
    		FILM NUMBER:		201209949

    	BUSINESS ADDRESS:
    		STREET 1:		TOLDBODGADE 33
    		CITY:			1253 COPENHAGEN K
    		STATE:			G7
    		ZIP:			00000

    	MAIL ADDRESS:
    		STREET 1:		TOLDBODGADE 33
    		CITY:			1253 COPENHAGEN K
    		STATE:			G7
    		ZIP:			00000
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>tmb-20200929x6k.htm
    <DESCRIPTION>6-K
    <TEXT>
    Document 1 - file: tmb-20200929x6k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>tmb-20200929xex99d1.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: tmb-20200929xex99d1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>tmb-20200929xex99d1003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: tmb-20200929xex99d1003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>tmb-20200929xex99d1005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: tmb-20200929xex99d1005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>tmb-20200929xex99d1001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: tmb-20200929xex99d1001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tmb-20200929xex99d1004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: tmb-20200929xex99d1004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>tmb-20200929xex99d1002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: tmb-20200929xex99d1002.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>