    <SEC-DOCUMENT>0000921895-17-002316-index.html : 20170915
    <SEC-HEADER>0000921895-17-002316.hdr.sgml : 20170915
    <ACCEPTANCE-DATETIME>20170915083701
    ACCESSION NUMBER:		0000921895-17-002316
    CONFORMED SUBMISSION TYPE:	SC 13D/A
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20170915
    DATE AS OF CHANGE:		20170915

    SUBJECT COMPANY:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PROGRESS SOFTWARE CORP /MA
    		CENTRAL INDEX KEY:			0000876167
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
    		IRS NUMBER:				042746201
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1130

    	FILING VALUES:
    		FORM TYPE:		SC 13D/A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	005-42022
    		FILM NUMBER:		171086938

    	BUSINESS ADDRESS:
    		STREET 1:		14 OAK PARK
    		CITY:			BEDFORD
    		STATE:			MA
    		ZIP:			01730
    		BUSINESS PHONE:		781-280-4473

    	MAIL ADDRESS:
    		STREET 1:		14 OAK PARK DRIVE
    		CITY:			BEDFORD
    		STATE:			MA
    		ZIP:			01730

    FILED BY:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Praesidium Investment Management Company, LLC
    		CENTRAL INDEX KEY:			0001320769
    		IRS NUMBER:				200302413
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		SC 13D/A

    	BUSINESS ADDRESS:
    		STREET 1:		1411 BROADWAY
    		STREET 2:		29TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10018
    		BUSINESS PHONE:		(212) 821-1495

    	MAIL ADDRESS:
    		STREET 1:		1411 BROADWAY
    		STREET 2:		29TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10018
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>SC 13D/A
    <SEQUENCE>1
    <FILENAME>sc13da1010622002_09152017.htm
    <DESCRIPTION>AMENDMENT NO. 10 TO THE SCHEDULE 13D
    <TEXT>
    Document 1 - file: sc13da1010622002_09152017.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>ex99113da1010622002_091517.htm
    <DESCRIPTION>LETTER TO THE BOARD OF DIRECTORS
    <TEXT>
    Document 2 - file: ex99113da1010622002_091517.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>SC 13D/A
    <SEQUENCE>3
    <FILENAME>ex99213da1010622002_091517.pdf
    <DESCRIPTION>PRESENTATION TITLED "THE CASE FOR STRATEGIC CHANGE AT PROGRESS SOFTWARE"
    <TEXT>
    Document 3 - file: ex99213da1010622002_091517.pdf

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>image_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: image_001.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>