0001127602-15-000644.txt : 20150105 0001127602-15-000644.hdr.sgml : 20150105 20150105161427 ACCESSION NUMBER: 0001127602-15-000644 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20141231 FILED AS OF DATE: 20150105 DATE AS OF CHANGE: 20150105 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: 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 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hammond F G CENTRAL INDEX KEY: 0001332920 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-34630 FILM NUMBER: 15504925 MAIL ADDRESS: STREET 1: C/O ASPEN TECHNOLOGY, INC. STREET 2: 10 CANAL PARK CITY: CAMBRIDGE STATE: MA ZIP: 02141 4 1 form4.xml PRIMARY DOCUMENT X0306 4 2014-12-31 0000929940 ASPEN TECHNOLOGY INC /DE/ AZPN 0001332920 Hammond F G C/O ASPEN TECHNOLOGY, INC. 20 CROSBY DRIVE BEDFORD MA 01730 1 Senior VP & General Counsel Common Stock 2014-12-31 4 F 0 1017 35.55 D 39739 D Shares withheld by Registrant to satisfy statutory tax withholding requirements on vesting of Restricted Stock Units and distribution of stock. /s/ F. G. Hammond 2015-01-05