<SEC-DOCUMENT>0001104659-15-078773-index.html : 20151113 <SEC-HEADER>0001104659-15-078773.hdr.sgml : 20151113 <ACCEPTANCE-DATETIME>20151113162736 ACCESSION NUMBER: 0001104659-15-078773 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20151113 ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20151113 DATE AS OF CHANGE: 20151113 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: 151229478 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>a15-22943_18k.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a15-22943_18k.htm
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