<SEC-DOCUMENT>0001193125-15-334100-index.html : 20150930
<SEC-HEADER>0001193125-15-334100.hdr.sgml : 20150930
<ACCEPTANCE-DATETIME>20150930172734
ACCESSION NUMBER:		0001193125-15-334100
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20150930
DATE AS OF CHANGE:		20150930
GROUP MEMBERS:		CAVENDISH SQUARE HOLDING B.V.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMSCORE, INC.
		CENTRAL INDEX KEY:			0001158172
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		IRS NUMBER:				541955550
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83687
		FILM NUMBER:		151134654

	BUSINESS ADDRESS:	
		STREET 1:		11950 DEMOCRACY DRIVE
		STREET 2:		SUITE 600
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
		BUSINESS PHONE:		703-438-2000

	MAIL ADDRESS:	
		STREET 1:		11950 DEMOCRACY DRIVE
		STREET 2:		SUITE 600
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMSCORE NETWORKS INC
		DATE OF NAME CHANGE:	20010827

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WPP plc
		CENTRAL INDEX KEY:			0000806968
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		27 FARM STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1J5RJ
		BUSINESS PHONE:		011442074082204

	MAIL ADDRESS:	
		STREET 1:		27 FARM STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1J5RJ

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WPP GROUP PLC
		DATE OF NAME CHANGE:	19960514
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d71223dsc13da.htm
<DESCRIPTION>AMENDMENT NO. 1 TO SCHEDULE 13D
<TEXT>
Document 1 - file: d71223dsc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>d71223dex1.htm
<DESCRIPTION>EX-1
<TEXT>
Document 2 - file: d71223dex1.htm

</DOCUMENT>
</SEC-DOCUMENT>