<SEC-DOCUMENT>0001127602-16-058527-index.html : 20160725
<SEC-HEADER>0001127602-16-058527.hdr.sgml : 20160725
<ACCEPTANCE-DATETIME>20160725163634
ACCESSION NUMBER:		0001127602-16-058527
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20160721
FILED AS OF DATE:		20160725
DATE AS OF CHANGE:		20160725

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASPEN TECHNOLOGY INC /DE/
		CENTRAL INDEX KEY:			0000929940
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				042739697
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		20 CROSBY DRIVE
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730
		BUSINESS PHONE:		781-221-4302

	MAIL ADDRESS:	
		STREET 1:		20 CROSBY DRIVE
		CITY:			BEDFORD
		STATE:			MA
		ZIP:			01730

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WISE R HALSEY
		CENTRAL INDEX KEY:			0001257284

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34630
		FILM NUMBER:		161782402

	MAIL ADDRESS:	
		STREET 1:		C/O INTERGRAPH CORP
		STREET 2:		288 DUNLOP BLVD
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35824
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: form3.html

Document 1 - RAW XML: form3.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC):
<TEXT>
Document 2 - file: doc1.txt

</DOCUMENT>
</SEC-DOCUMENT>