Stephanie Buckner Altair Engineering Inc. (ALTR) insider trading activity

Stephanie Buckner is Chief Operating Officer of Altair Engineering Inc.. Currently has a direct ownership of 0 shares of ALTR, which is worth approximately $0. The most recent transaction as insider was on Mar 26, 2025, when has been sold 31,352 shares (Class A Common Stock) at a price of $113.0 per share, resulting in proceeds of $3,542,776. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 0

100.0% 3M change

100.0% 12M change

Total Value Held $0

Stephanie Buckner Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Mar 26 2025	SELL Sale (or disposition) back to the issuer	$3,542,776 $113.0 p/Share	31,352 Reduced 100.0%	0 Class A Common Stock
Feb 12 2025	BUY Grant, award, or other acquisition	-	9,923 Added 24.04%	31,352 Class A Common Stock
Dec 16 2024	BUY Exercise of conversion of derivative security	-	1,800 Added 7.75%	21,429 Class A Common Stock
Mar 15 2024	BUY Grant, award, or other acquisition	-	5,625 Added 22.27%	19,629 Class A Common Stock
Mar 04 2024	SELL Open market or private sale	$41,465 $85.32 p/Share	486 Reduced 3.35%	14,004 Class A Common Stock
Jul 14 2023	BUY Grant, award, or other acquisition	$6,013 $42.65 p/Share	141 Added 0.94%	14,916 Class A Common Stock
Mar 02 2023	BUY Grant, award, or other acquisition	-	5,000 Added 25.29%	14,774 Class A Common Stock
Mar 01 2023	SELL Open market or private sale	$11,108 $63.84 p/Share	174 Reduced 1.75%	9,774 Class A Common Stock
Jan 14 2023	BUY Grant, award, or other acquisition	$6,008 $42.31 p/Share	142 Added 1.41%	9,948 Class A Common Stock
Jul 14 2022	BUY Grant, award, or other acquisition	$5,960 $41.68 p/Share	143 Added 1.44%	9,806 Class A Common Stock
Mar 16 2022	SELL Open market or private sale	$19,888 $59.19 p/Share	336 Reduced 3.36%	9,663 Class A Common Stock
Mar 14 2022	SELL Open market or private sale	$4,857 $59.96 p/Share	81 Reduced 0.8%	9,999 Class A Common Stock
Feb 15 2022	BUY Grant, award, or other acquisition	-	2,000 Added 16.56%	10,080 Class A Common Stock
Mar 15 2021	BUY Grant, award, or other acquisition	-	2,093 Added 20.57%	8,081 Class A Common Stock

Stephanie Buckner

Chief Operating Officer

Troy, MI

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