0001972362-23-000899.txt : 20231107 0001972362-23-000899.hdr.sgml : 20231107 20231107150614 ACCESSION NUMBER: 0001972362-23-000899 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231107 DATE AS OF CHANGE: 20231107 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Altair Engineering Inc. CENTRAL INDEX KEY: 0001701732 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] IRS NUMBER: 382591828 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-38263 FILM NUMBER: 231383195 BUSINESS ADDRESS: STREET 1: 1820 E. BIG BEAVER ROAD CITY: TROY STATE: MI ZIP: 48083 BUSINESS PHONE: 248-614-2400 MAIL ADDRESS: STREET 1: 1820 E. BIG BEAVER ROAD CITY: TROY STATE: MI ZIP: 48083 FORMER COMPANY: FORMER CONFORMED NAME: Altair Engineering Ing. DATE OF NAME CHANGE: 20170322 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Marraccini Jeffrey CENTRAL INDEX KEY: 0001912935 FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: C/O ALTAIR ENGINEERING INC. STREET 2: 1820 E. BIG BEAVER RD. CITY: TROY STATE: MI ZIP: 48083 144 1 primary_doc.xml 144 0001912935 XXXXXXXX LIVE 0001701732 Altair Engineering Inc. 001-38263 1820 E. BIG BEAVER ROAD TROY MI 48083 248-614-2400 Marraccini Jeffrey Officer COMMON Morgan Stanley Smith Barney LLC Executive Services

200 W Civic Center Dr - 4th Floor Sandy UT 84070

3711 219357.21 54100000 11/07/2023 NASDAQ COMMON 11/07/2023 STOCK OPTION EXERCISE ISSUER N 3711 11/07/2023 COMPENSATION Y 11/07/2023 /s/ Jeffrey David Marraccini