<SEC-DOCUMENT>0001125345-18-000010-index.html : 20180124
<SEC-HEADER>0001125345-18-000010.hdr.sgml : 20180124
<ACCEPTANCE-DATETIME>20180123183326
ACCESSION NUMBER:		0001125345-18-000010
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20180123
ITEM INFORMATION:		Regulation FD Disclosure
FILED AS OF DATE:		20180124
DATE AS OF CHANGE:		20180123

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MACROGENICS INC
		CENTRAL INDEX KEY:			0001125345
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36112
		FILM NUMBER:		18543687

	BUSINESS ADDRESS:	
		STREET 1:		9704 MEDICAL CENTER DRIVE
		CITY:			Rockville
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		301-251-5172

	MAIL ADDRESS:	
		STREET 1:		9704 MEDICAL CENTER DRIVE
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>form8-k_futilityresult2018.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: form8-k_futilityresult2018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>mgnx_sophiaxfutilitypr.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: mgnx_sophiaxfutilitypr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>mgnxlogo.gif
<TEXT>
Document 3 - file: mgnxlogo.gif

</DOCUMENT>
</SEC-DOCUMENT>