<SEC-DOCUMENT>0001011438-18-000067-index.html : 20180213
<SEC-HEADER>0001011438-18-000067.hdr.sgml : 20180213
<ACCEPTANCE-DATETIME>20180213161323
ACCESSION NUMBER:		0001011438-18-000067
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180213
DATE AS OF CHANGE:		20180213
GROUP MEMBERS:		CADIAN CAPITAL MANAGEMENT GP, LLC
GROUP MEMBERS:		ERIC BANNASCH

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PROS Holdings, Inc.
		CENTRAL INDEX KEY:			0001392972
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				760168604
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83766
		FILM NUMBER:		18603452

	BUSINESS ADDRESS:	
		STREET 1:		3100 MAIN STREET
		STREET 2:		SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-335-5151

	MAIL ADDRESS:	
		STREET 1:		3100 MAIN STREET
		STREET 2:		SUITE 900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CADIAN CAPITAL MANAGEMENT, LP
		CENTRAL INDEX KEY:			0001423686
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		535 MADISON AVENUE, 36TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-792-8800

	MAIL ADDRESS:	
		STREET 1:		535 MADISON AVENUE, 36TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CADIAN CAPITAL MANAGEMENT, LLC
		DATE OF NAME CHANGE:	20080111
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>form_sc13ga-pros.htm
<TEXT>
Document 1 - file: form_sc13ga-pros.htm

</DOCUMENT>
</SEC-DOCUMENT>