Nelson Dias - Feb 15, 2022 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Chief Revenue Officer
Signature: /s/ Raoul Maitra, attorney-in-fact for Nelson Navin Patrick Dias
Stock symbol: ALTR
Transactions as of: Feb 15, 2022
Transactions value $: -$476
Form type: 4
Date filed: 3/16/2022, 06:25 PM
Next filing: Mar 9, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Award	$0	+3.8K	+14.22%	$0.00	30.5K	Feb 15, 2022	Direct	F1, F2
transaction	ALTR	Class A Common Stock	Sale	-$476	-8	-0.03%	$59.48	30.5K	Mar 15, 2022	Direct	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	+11.4K		$0.00	11.4K	Feb 15, 2022	Class A Common Stock	11.4K	$61.79	Direct	F4

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

Explanation of Responses:

Id	Content
F1	On February 15, 2022, the Reporting Person was granted 3,800 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing February 15, 2023.
F2	Includes 7,615 Class A Common Stock restricted stock units that are unvested. This also includes 109 shares of Class A Common Stock purchased under the Altair Engineering Inc. 2021 Employee Stock Purchase Plan in a transaction exempt under Rule 16b-3(c).
F3	Includes 6,567 Class A Common Stock restricted stock units that are unvested.
F4	On February 15, 2022, the Reporting Person was granted 11,375 Class A Common Stock options, the options vest in 4 equal annual installments commencing February 15, 2023.