Simon David L
Related Filers (1)
Ownership (17)
4/A
Friday, 4/22/2022
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 3/18/2022
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/15/2022
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/9/2022
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 1/19/2022
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 3/18/2021
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 3/16/2021
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Monday, 3/8/2021
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 12/3/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/25/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Thursday, 6/4/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/18/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Friday, 3/13/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/11/2020
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/5/2019
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/20/2019
Altair Engineering Inc.: Statement of changes in beneficial ownership of securities
3
Monday, 1/7/2019
Altair Engineering Inc.: Initial statement of beneficial ownership of securities