JRS Investments LLC - Sep 17, 2021 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: 10%+ Owner
Signature: /s/ Raoul Maitra, attorney-in-fact for JRS Investments, LLC
Stock symbol: ALTR
Transactions as of: Sep 17, 2021
Transactions value $: -$1,088,238
Form type: 4
Date filed: 9/20/2021, 10:40 AM
Previous filing: Sep 17, 2021
Next filing: Oct 19, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Conversion of derivative security	$0	+14.6K		$0.00	14.6K	Sep 17, 2021	Direct
transaction	ALTR	Class A Common Stock	Sale	-$885K	-11.9K	-81.47%	$74.55	2.7K	Sep 17, 2021	Direct	F1, F2
transaction	ALTR	Class A Common Stock	Sale	-$196K	-2.6K	-96.3%	$75.23	100	Sep 17, 2021	Direct	F1, F3
transaction	ALTR	Class A Common Stock	Sale	-$7.61K	-100	-100%	$76.11	0	Sep 17, 2021	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	Class B Common Stock	Conversion of derivative security	$0	-14.6K	-0.21%	$0.00	6.86M	Sep 17, 2021	Class A Common Stock	14.6K	$0.00	Direct	F4

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

Explanation of Responses:

Id	Content
F1	The sale of the shares of Class A Common Stock were made pursuant to a plan intended to comply with Rule 10b5-1 of the Exchange Act, previously entered into on June 15, 2020 and as modified on December 15, 2020.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.00 to $74.98 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.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.01 to $75.62 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	Each share of Class B common stock is immediately convertible, at the option of the shareholder, into one share of Class A common stock and shall automatically convert into Class A common stock upon the occurrence of certain events. Please see Altair Engineering Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-220710) for a description of the conversion rights.