Gc Investments Llc Altair Engineering Inc. (ALTR) insider trading activity

Gc Investments LLC is > 10% Shareholder of Altair Engineering Inc.. Currently has a direct ownership of 300,000 shares of ALTR, which is worth approximately $32.7 Million. The most recent transaction as insider was on Oct 14, 2024, when has been sold 2,176 shares (Class A Common Stock) at a price of $95.31 per share, resulting in proceeds of $207,394. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 300K

25.0% 3M change

Infinity% 12M change

Total Value Held $32.7 Million

GC Investments LLC Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Oct 14 2024	SELL Open market or private sale	$207,394 $95.31 p/Share	2,176 Reduced 0.72%	300,000 Class A Common Stock
Oct 11 2024	SELL Open market or private sale	$9,358,822 $95.67 p/Share	97,824 Reduced 24.46%	302,176 Class A Common Stock
Jun 17 2024	BUY Conversion of derivative security	-	300,000 Added 42.86%	400,000 Class A Common Stock
Jun 12 2024	SELL Open market or private sale	$9,736,000 $97.36 p/Share	100,000 Reduced 50.0%	100,000 Class A Common Stock
May 21 2024	SELL Open market or private sale	$117,754 $90.86 p/Share	1,296 Reduced 0.64%	200,000 Class A Common Stock
May 20 2024	SELL Open market or private sale	$4,472,975 $91.84 p/Share	48,704 Reduced 19.48%	201,296 Class A Common Stock
May 17 2024	SELL Open market or private sale	$4,537,000 $90.74 p/Share	50,000 Reduced 16.67%	250,000 Class A Common Stock
Feb 23 2024	BUY Conversion of derivative security	-	300,000 Added 50.0%	300,000 Class A Common Stock
Dec 08 2023	SELL Open market or private sale	$326,691 $71.58 p/Share	4,564 Reduced 100.0%	0 Class A Common Stock
Dec 08 2023	BUY Conversion of derivative security	-	4,564 Added 50.0%	4,564 Class A Common Stock
Dec 06 2023	SELL Open market or private sale	$1,043,644 $72.42 p/Share	14,411 Reduced 100.0%	0 Class A Common Stock
Dec 06 2023	BUY Conversion of derivative security	-	14,411 Added 50.0%	14,411 Class A Common Stock
Dec 01 2023	SELL Open market or private sale	$3,331,307 $72.79 p/Share	45,766 Reduced 100.0%	0 Class A Common Stock
Dec 01 2023	BUY Conversion of derivative security	-	45,766 Added 50.0%	45,766 Class A Common Stock
Nov 30 2023	SELL Open market or private sale	$81,949 $72.65 p/Share	1,128 Reduced 100.0%	0 Class A Common Stock
Nov 30 2023	BUY Conversion of derivative security	-	1,128 Added 50.0%	1,128 Class A Common Stock
Nov 29 2023	SELL Open market or private sale	$1,877,452 $73.47 p/Share	25,554 Reduced 100.0%	0 Class A Common Stock
Nov 29 2023	BUY Conversion of derivative security	-	25,554 Added 50.0%	25,554 Class A Common Stock
Nov 21 2023	SELL Open market or private sale	$629,466 $73.39 p/Share	8,577 Reduced 100.0%	0 Class A Common Stock
Nov 21 2023	BUY Conversion of derivative security	-	8,577 Added 50.0%	8,577 Class A Common Stock
Apr 14 2023	SELL Open market or private sale	$3,569,000 $71.38 p/Share	50,000 Reduced 100.0%	0 Class A Common Stock
Apr 14 2023	BUY Conversion of derivative security	-	50,000 Added 50.0%	50,000 Class A Common Stock
Apr 13 2023	SELL Open market or private sale	$3,567,000 $71.34 p/Share	50,000 Reduced 100.0%	0 Class A Common Stock
Apr 13 2023	BUY Conversion of derivative security	-	50,000 Added 50.0%	50,000 Class A Common Stock
Mar 14 2023	SELL Open market or private sale	$3,318,033 $66.12 p/Share	50,182 Reduced 100.0%	0 Class A Common Stock

GIL

Gc Investments LLC

> 10% Shareholder

Troy, MI

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