Teresa A. Harris - 25 Feb 2025 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Director
Signature: /s/ Raoul Maitra, attorney-in-fact for Teresa Anita Harris
Issuer symbol: ALTR
Transactions as of: 25 Feb 2025
Net transactions value: -$301,356
Form type: 4
Filing time: 27 Feb 2025, 10:49:17 UTC
Previous filing: 06 Nov 2024
Next filing: 28 Feb 2025
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	Sale	$301,356	-2,700	-13%	$111.61	18,542	25 Feb 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.56 to $111.70 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.
F2	Includes 2,347 Class A Common Stock restricted stock units that are unvested.

Content

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.56 to $111.70 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.

Includes 2,347 Class A Common Stock restricted stock units that are unvested.