0001127602-21-000557.txt : 20210105 0001127602-21-000557.hdr.sgml : 20210105 20210105162827 ACCESSION NUMBER: 0001127602-21-000557 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20201231 FILED AS OF DATE: 20210105 DATE AS OF CHANGE: 20210105 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: 21505987 MAIL ADDRESS: STREET 1: C/O ASPEN TECHNOLOGY, INC. STREET 2: 10 CANAL PARK CITY: CAMBRIDGE STATE: MA ZIP: 02141 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 4 1 form4.xml PRIMARY DOCUMENT X0306 4 2020-12-31 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 2020-12-31 4 F 0 487 130.51 D 26494 D Shares withheld by Registrant to satisfy minimum statutory tax withholding requirements on vesting of restricted stock units and distribution of restricted stock. /s/ F. G. Hammond 2021-01-05