<SEC-DOCUMENT>0001595974-18-000130-index.html : 20181206
<SEC-HEADER>0001595974-18-000130.hdr.sgml : 20181206
<ACCEPTANCE-DATETIME>20181206193005
ACCESSION NUMBER:		0001595974-18-000130
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181203
FILED AS OF DATE:		20181206
DATE AS OF CHANGE:		20181206

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mandal Sumant
		CENTRAL INDEX KEY:			0001603810

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36384
		FILM NUMBER:		181221976

	MAIL ADDRESS:	
		STREET 1:		12181 BLUFF CREEK DRIVE
		STREET 2:		4TH FLOOR
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90094

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RUBICON PROJECT, INC.
		CENTRAL INDEX KEY:			0001595974
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				208881738
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		12181 BLUFF CREEK DRIVE, 4TH FLOOR
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90094
		BUSINESS PHONE:		310-207-0272

	MAIL ADDRESS:	
		STREET 1:		12181 BLUFF CREEK DRIVE, 4TH FLOOR
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90094
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_154414258887486.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_154414258887486.html

Document 1 - RAW XML: wf-form4_154414258887486.xml

</DOCUMENT>
</SEC-DOCUMENT>