0001127602-24-008851.txt : 20240306 0001127602-24-008851.hdr.sgml : 20240306 20240306165553 ACCESSION NUMBER: 0001127602-24-008851 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240304 FILED AS OF DATE: 20240306 DATE AS OF CHANGE: 20240306 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Buckner Stephanie CENTRAL INDEX KEY: 0001839690 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38263 FILM NUMBER: 24726745 MAIL ADDRESS: STREET 1: C/O ALTAIR ENGINEERING INC. STREET 2: 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 2024-03-04 0001701732 Altair Engineering Inc. ALTR 0001839690 Buckner Stephanie C/O ALTAIR ENGINEERING INC. 1820 E. BIG BEAVER RD. TROY MI 48083 1 Chief Operating Officer 0 Class A Common Stock 2024-03-04 4 S 0 486 85.32 D 14004 D Class A Common Stock 2024-03-04 4 S 0 60 85.32 D 6678 I By husband Includes 6,029 Class A Common Stock restricted stock units that are unvested. The amount of securities beneficially owned by the Reporting Person has been reduced by 426 shares of Class A Common Stock to reflect the correction of an administrative error. Includes 2,061 Class A Common Stock restricted stock units that are unvested. /s/ Raoul Maitra, attorney-in-fact for Stephanie Bucker 2024-03-06