0001127602-24-000412.txt : 20240103 0001127602-24-000412.hdr.sgml : 20240103 20240103161454 ACCESSION NUMBER: 0001127602-24-000412 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20231229 FILED AS OF DATE: 20240103 DATE AS OF CHANGE: 20240103 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Pietri Antonio J CENTRAL INDEX KEY: 0001407695 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41400 FILM NUMBER: 24506539 MAIL ADDRESS: STREET 1: C/O ASPEN TECHNOLOGY, INC. STREET 2: 20 CROSBY DRIVE CITY: BEDFORD STATE: MA ZIP: 01730 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Aspen Technology, Inc. CENTRAL INDEX KEY: 0001897982 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMPUTER PROGRAMMING SERVICES [7371] ORGANIZATION NAME: 06 Technology IRS NUMBER: 873100817 STATE OF INCORPORATION: DE FISCAL YEAR END: 0630 BUSINESS ADDRESS: STREET 1: 20 CROSBY DRIVE CITY: BEDFORD STATE: MA ZIP: 01730 BUSINESS PHONE: 781-221-1939 MAIL ADDRESS: STREET 1: 20 CROSBY DRIVE CITY: BEDFORD STATE: MA ZIP: 01730 FORMER COMPANY: FORMER CONFORMED NAME: Emersub CX, Inc. DATE OF NAME CHANGE: 20211208 4 1 form4.xml PRIMARY DOCUMENT X0508 4 2023-12-29 0001897982 Aspen Technology, Inc. AZPN 0001407695 Pietri Antonio J C/O ASPEN TECHNOLOGY, INC. 20 CROSBY DRIVE BEDFORD MA 01730 1 1 President & CEO 0 Common Stock 2023-12-29 4 F 0 3843 220.62 D 161537 D Common Stock 20500 I By GRAT Shares withheld by Registrant to satisfy statutory tax withholding requirements on vesting of Restricted Stock Units and distribution of stock. /s/Mark E. Mouritsen, attorney-in fact for Mr. Pietri 2024-01-03