<SEC-DOCUMENT>0001567619-21-002842-index.html : 20210211 <SEC-HEADER>0001567619-21-002842.hdr.sgml : 20210211 <ACCEPTANCE-DATETIME>20210210181857 ACCESSION NUMBER: 0001567619-21-002842 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20210211 DATE AS OF CHANGE: 20210210 SUBJECT COMPANY: 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: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-44607 FILM NUMBER: 21615580 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC CENTRAL INDEX KEY: 0001021223 IRS NUMBER: 954575414 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 1800 AVE OF THE STAR 2ND FL CITY: LOS ANGELES STATE: CA ZIP: 90067 BUSINESS PHONE: 3105562721 MAIL ADDRESS: STREET 1: 1800 AVENUE OF THE STARS 2ND FLOOR CITY: LOS ANGELES STATE: CA ZIP: 90067 FORMER COMPANY: FORMER CONFORMED NAME: KAYNE ANDERSON INVESTMENT MANAGEMENT LLC DATE OF NAME CHANGE: 19990326 FORMER COMPANY: FORMER CONFORMED NAME: KAIM TRADITIONAL L L C DATE OF NAME CHANGE: 19980223 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>doc1.htm <DESCRIPTION>NONE <TEXT> Document 1 - file: doc1.htm
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