<SEC-DOCUMENT>0000834237-22-004481-index.html : 20220201 <SEC-HEADER>0000834237-22-004481.hdr.sgml : 20220201 <ACCEPTANCE-DATETIME>20220201170831 ACCESSION NUMBER: 0000834237-22-004481 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20220201 DATE AS OF CHANGE: 20220201 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: 22579939 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: BlackRock Inc. CENTRAL INDEX KEY: 0001364742 STANDARD INDUSTRIAL CLASSIFICATION: SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211] IRS NUMBER: 320174431 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 55 EAST 52ND STREET CITY: NEW YORK STATE: NY ZIP: 10055 BUSINESS PHONE: 212-810-5300 MAIL ADDRESS: STREET 1: 55 EAST 52ND STREET CITY: NEW YORK STATE: NY ZIP: 10055 FORMER COMPANY: FORMER CONFORMED NAME: BlackRock, Inc. DATE OF NAME CHANGE: 20060929 FORMER COMPANY: FORMER CONFORMED NAME: New BlackRock, Inc. DATE OF NAME CHANGE: 20060601 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>us0453271035_020122.txt <TEXT> Document 1 - file: us0453271035_020122.txt
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