0001127602-24-020468.txt : 20240716 0001127602-24-020468.hdr.sgml : 20240716 20240716122147 ACCESSION NUMBER: 0001127602-24-020468 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240712 FILED AS OF DATE: 20240716 DATE AS OF CHANGE: 20240716 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Messano Amy CENTRAL INDEX KEY: 0001762863 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38263 FILM NUMBER: 241119104 MAIL ADDRESS: STREET 1: 1820 E. BIG BEAVER ROAD CITY: TROY STATE: MI ZIP: 48083 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Altair Engineering Inc. CENTRAL INDEX KEY: 0001701732 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-PREPACKAGED SOFTWARE [7372] ORGANIZATION NAME: 06 Technology IRS NUMBER: 382591828 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 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 4 1 form4.xml PRIMARY DOCUMENT X0508 4 2024-07-12 0001701732 Altair Engineering Inc. ALTR 0001762863 Messano Amy C/O ALTAIR ENGINEERING INC. 1820 E. BIG BEAVER RD. TROY MI 48083 1 Chief Marketing Officer 0 Class A Common Stock 2024-07-12 4 A 0 83 71.68 A 18224 D Shares purchased under the Altair Engineering Inc. 2021 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c). Includes 8,236 Class A Common Stock restricted stock units that are unvested. /s/ Raoul Maitra, attorney-in-fact for Amy Messano 2024-07-16