<SEC-DOCUMENT>0001140361-17-012191-index.html : 20170315
<SEC-HEADER>0001140361-17-012191.hdr.sgml : 20170315
<ACCEPTANCE-DATETIME>20170315201706
ACCESSION NUMBER:		0001140361-17-012191
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20170313
FILED AS OF DATE:		20170315
DATE AS OF CHANGE:		20170315

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MDC PARTNERS INC
		CENTRAL INDEX KEY:			0000876883
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		IRS NUMBER:				980364441
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		745 FIFTH AVENUE, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151
		BUSINESS PHONE:		646 429 1800

	MAIL ADDRESS:	
		STREET 1:		745 FIFTH AVENUE, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC CORP INC
		DATE OF NAME CHANGE:	20001204

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC COMMUNICATIONS CORP
		DATE OF NAME CHANGE:	19961028

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC CORPORATION
		DATE OF NAME CHANGE:	19950419

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bridge Street Opportunity Advisors, L.L.C.
		CENTRAL INDEX KEY:			0001615636

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692675

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2017 Offshore, L.P.
		CENTRAL INDEX KEY:			0001698770
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692676

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			StoneBridge 2017, L.P.
		CENTRAL INDEX KEY:			0001698772
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692677

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198
		BUSINESS PHONE:		212-902-1000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282-2198

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Broad Street Principal Investments, L.L.C.
		CENTRAL INDEX KEY:			0001575993

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692678

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOLDMAN SACHS & CO
		CENTRAL INDEX KEY:			0000769993
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1127

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692679

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		STREET 2:		C/O GOLDMAN SACHS & CO
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOLDMAN SACHS GROUP INC
		CENTRAL INDEX KEY:			0000886982
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		17692680

	BUSINESS ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282
		BUSINESS PHONE:		2129021000

	MAIL ADDRESS:	
		STREET 1:		200 WEST STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10282

	FORMER NAME:	
		FORMER CONFORMED NAME:	GOLDMAN SACHS GROUP INC/
		DATE OF NAME CHANGE:	20010104
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
Document 1 - file: doc1.html

Document 1 - RAW XML: doc1.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>mdcex24_0.htm
<TEXT>
Document 2 - file: mdcex24_0.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>3
<FILENAME>mdcex24_1.htm
<TEXT>
Document 3 - file: mdcex24_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.2
<SEQUENCE>4
<FILENAME>mdcex24_2.htm
<TEXT>
Document 4 - file: mdcex24_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.3
<SEQUENCE>5
<FILENAME>mdcex24_3.htm
<TEXT>
Document 5 - file: mdcex24_3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.4
<SEQUENCE>6
<FILENAME>mdcex24_4.htm
<TEXT>
Document 6 - file: mdcex24_4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.5
<SEQUENCE>7
<FILENAME>mdcex24_5.htm
<TEXT>
Document 7 - file: mdcex24_5.htm

</DOCUMENT>
</SEC-DOCUMENT>