Stephanie Buckner - Nov 9, 2021 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Chief Operating Officer
Signature: /s/ Raoul Maitra, attorney-in-fact for Stephanie Bucker
Stock symbol: ALTR
Transactions as of: Nov 9, 2021
Transactions value $: -$4,857
Form type: 4
Date filed: 3/16/2022, 09:18 PM
Next filing: Mar 18, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Award	$0	+2K	+24.75%	$0.00	10.1K	Feb 15, 2022	Direct	F1, F2
transaction	ALTR	Class A Common Stock	Sale	-$4.86K	-81	-0.8%	$59.96	10K	Mar 14, 2022	Direct	F3, F4
transaction	ALTR	Class A Common Stock	Award	$0	+1.43K	+37.26%	$0.00	5.26K	Nov 9, 2021	By husband	F5, F6

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	+6K		$0.00	6K	Feb 15, 2022	Class A Common Stock	6K	$61.79	Direct	F7
transaction	ALTR	Stock Option (Right to Buy)	Award	$0	+4.28K		$0.00	4.28K	Nov 9, 2021	Class A Common Stock	4.28K	$80.60	By husband	F8

* 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 2,000 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing February 15, 2023.
F2	Includes 5,671 Class A Common Stock restricted stock units that are unvested.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.96 to $60.27 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F4	Includes 5,437 Class A Common Stock restricted stock units that are unvested.
F5	On November 9, 2021, the Reporting Person's husband was granted 1,429 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing November 9, 2022.
F6	Includes 3,491 Class A Common Stock restricted stock units that are unvested.
F7	On February 15, 2022, the Reporting Person was granted 6,000 Class A Common Stock options, the options vest in 4 equal annual installments commencing February 15, 2023.
F8	On November 9, 2021, the Reporting Person's husband was granted 4,280 Class A Common Stock options, the options vest in 4 equal annual installments commencing November 9, 2022.