0001972362-24-000814.txt : 20240531 0001972362-24-000814.hdr.sgml : 20240531 20240531124123 ACCESSION NUMBER: 0001972362-24-000814 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240531 DATE AS OF CHANGE: 20240531 SUBJECT COMPANY: 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 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-38263 FILM NUMBER: 241008683 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: Srikanth Mahalingam CENTRAL INDEX KEY: 0001720441 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 1820 E BIG BEAVER RD CITY: TROY STATE: MI ZIP: 48083 144 1 primary_doc.xml 144 0001720441 XXXXXXXX LIVE 0001701732 Altair Engineering Inc. 001-38263 1820 E. BIG BEAVER ROAD TROY MI 48083 248-614-2400 Srikanth Mahalingam Officer COMMON Morgan Stanley Smith Barney LLC Executive Services

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

2479 228068.00 54600000 05/31/2024 NASDAQ COMMON 03/11/2024 RESTRICTED STOCK ISSUER N 368 03/11/2024 COMPENSATION COMMON 02/15/2024 RESTRICTED STOCK ISSUER N 713 02/15/2024 COMPENSATION COMMON 03/15/2024 RESTRICTED STOCK ISSUER N 370 03/15/2024 COMPENSATION COMMON 03/02/2024 RESTRICTED STOCK ISSUER N 1028 03/02/2024 COMPENSATION N MAHALINGAM SRIKANTH

1820 EAST BIG BEAVER ROAD TROY, MI 48083

RESTRICTED STOCK 05/08/2024 153 12910.02 MAHALINGAM SRIKANTH

1820 EAST BIG BEAVER ROAD, TROY MI 48083

RESTRICTED STOCK 03/04/2024 457 38991.24 05/31/2024 /s/ Mahalingam Srikanth