<SEC-DOCUMENT>0001104659-16-090438-index.html : 20160119 <SEC-HEADER>0001104659-16-090438.hdr.sgml : 20160118 <ACCEPTANCE-DATETIME>20160119170638 ACCESSION NUMBER: 0001104659-16-090438 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 5 CONFORMED PERIOD OF REPORT: 20160112 ITEM INFORMATION: Entry into a Material Definitive Agreement ITEM INFORMATION: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20160119 DATE AS OF CHANGE: 20160119 FILER: 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 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-34630 FILM NUMBER: 161348944 BUSINESS ADDRESS: STREET 1: 200 WHEELER ROAD CITY: BURLINGTON STATE: MA ZIP: 01803 BUSINESS PHONE: 6179491000 MAIL ADDRESS: STREET 1: 200 WHEELER ROAD CITY: BURLINGTON STATE: MA ZIP: 01803 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>a16-2033_18k.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a16-2033_18k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-2.1 <SEQUENCE>2 <FILENAME>a16-2033_1ex2d1.htm <DESCRIPTION>EX-2.1 <TEXT> Document 2 - file: a16-2033_1ex2d1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-10.1 <SEQUENCE>3 <FILENAME>a16-2033_1ex10d1.htm <DESCRIPTION>EX-10.1 <TEXT> Document 3 - file: a16-2033_1ex10d1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>4 <FILENAME>a16-2033_1ex99d1.htm <DESCRIPTION>EX-99.1 <TEXT> Document 4 - file: a16-2033_1ex99d1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g20331mmi001.gif <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g20331mmi001.gif
</DOCUMENT> </SEC-DOCUMENT>