James R. Scapa - Mar 22, 2022 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Raoul Maitra, attorney-in-fact for James R. Scapa
Stock symbol: ALTR
Transactions as of: Mar 22, 2022
Transactions value $: $0
Form type: 4
Date filed: 3/23/2022, 12:42 PM
Previous filing: Mar 16, 2022
Next filing: May 12, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Award	$0	+23K	+16.88%	$0.00	159K	Mar 22, 2022	Direct	F1, F2
holding	ALTR	Class A Common Stock						1.5K	Mar 22, 2022	By wife	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ALTR	Stock Option (Right to Buy)	Award	$0	+80K		$0.00	80K	Mar 22, 2022	Class A Common Stock	80K	$64.54	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On March 22, 2022, the Reporting Person was granted 23,000 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing March 22, 2023.
F2	Includes 51,000 Class A Common Stock restricted stock units that are unvested.
F3	Includes 752 Class A Common Stock restricted stock units that are unvested.
F4	On March 22, 2022, the Reporting Person was granted 80,000 Class A Common Stock options, the options vest in 4 equal annual installments commencing March 22, 2023.