Buckner Stephanie [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
07/14/2023	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	141	$42.65	$6k		07/14/2023
07/14/2023	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	141	$42.65	$6k	By husband	07/14/2023
03/16/2023	Altair Engineering Inc.	ALTR	Sale	Class A Common Stock	31	$64.96	$2k	By husband	03/16/2023
12/15/2022	Altair Engineering Inc.	ALTR	Grant	Stock Option (Right to Buy)	24k	$45.91	$1.1M		12/15/2022
07/14/2022	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	143	$41.68	$6k		07/14/2022
07/14/2022	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	143	$41.68	$6k	By husband	07/14/2022
05/11/2022	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	486	$0.00	$0	By husband	05/11/2022
05/11/2022	Altair Engineering Inc.	ALTR	Grant	Stock Option (Right to Buy)	1.5k	$50.11	$73k	By husband	05/11/2022
03/16/2022	Altair Engineering Inc.	ALTR	Sale	Class A Common Stock	333	$58.48	$19.5k		03/16/2022
03/16/2022	Altair Engineering Inc.	ALTR	Sale	Class A Common Stock	3	$59.90	$179.7		03/16/2022
03/14/2022	Altair Engineering Inc.	ALTR	Sale	Class A Common Stock	81	$59.96	$4.9k		11/09/2021
02/15/2022	Altair Engineering Inc.	ALTR	Grant	Stock Option (Right to Buy)	6k	$61.79	$370.7k		11/09/2021
02/15/2022	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	2k	$0.00	$0		11/09/2021
11/09/2021	Altair Engineering Inc.	ALTR	Grant	Stock Option (Right to Buy)	4.3k	$80.60	$345k	By husband	11/09/2021
11/09/2021	Altair Engineering Inc.	ALTR	Grant	Class A Common Stock	1.4k	$0.00	$0	By husband	11/09/2021