Raoul Maitra - 17 May 2022 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Chief Legal Officer
Signature: /s/ Raoul Maitra
Issuer symbol: ALTR
Transactions as of: 17 May 2022
Net transactions value: +$6,231
Form type: 4
Filing time: 18 May 2022, 10:51:14 UTC
Previous filing: 09 Mar 2022
Next filing: 18 Jul 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Options Exercise	$6,231	+1,644	+9.3%	$3.79^*	19,415	17 May 2022	Direct	F1

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)	Options Exercise	$0	-1,644	-100%	$0.000000^*	0	17 May 2022	Class A Common Stock	1,644	$3.79	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Includes 4,826 Class A Common Stock restricted stock units that are unvested.
F2	The options vested in 4 equal annual installments commencing on December 15, 2015. These options are fully vested.