X0306 4 2018-01-29 0 0001701732 Altair Engineering Inc. ALTR 0001720644 Fariello Massimo Giuseppe C/O ALTAIR ENGINEERING INC. 1820 E. BIG BEAVER ROAD TROY MI 48083 0 1 0 0 Chief Strategy Officer Class A Common Stock 2018-01-29 4 A 0 2070 0.00 A 2070 D Class A Common Stock 332000 I By Advanced Studies Holding Future Srl On January 29, 2018, the Reporting Person was granted 2,070 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing January 29, 2019. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. Reporting person serves as Chief Executive Officer. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ Raoul Maitra, attorney-in-fact for Massimo Giuseppe Fariello 2018-02-22