<SEC-DOCUMENT>0000080255-15-000089-index.html : 20150210
<SEC-HEADER>0000080255-15-000089.hdr.sgml : 20150210
<ACCEPTANCE-DATETIME>20150210142823
ACCESSION NUMBER:		0000080255-15-000089
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20150210
DATE AS OF CHANGE:		20150210

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CASTLIGHT HEALTH, INC.
		CENTRAL INDEX KEY:			0001433714
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88076
		FILM NUMBER:		15592964

	BUSINESS ADDRESS:	
		STREET 1:		121 SPEAR STREET
		STREET 2:		SUITE 300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105
		BUSINESS PHONE:		415-671-4683

	MAIL ADDRESS:	
		STREET 1:		121 SPEAR STREET
		STREET 2:		SUITE 300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VENTANA HEALTH SERVICES, INC.
		DATE OF NAME CHANGE:	20090831

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARIA HEALTH INC
		DATE OF NAME CHANGE:	20080429

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRICE T ROWE ASSOCIATES INC /MD/
		CENTRAL INDEX KEY:			0000080255
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		IRS NUMBER:				520556948
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		100 EAST PRATT ST
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21202
		BUSINESS PHONE:		(410)345-6603

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 89000
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21289
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>cslt13gadec14.htm
<DESCRIPTION>CSLT AS OF 12/31/2014
<TEXT>
Document 1 - file: cslt13gadec14.htm

</DOCUMENT>
</SEC-DOCUMENT>