Brown Matthew Charles - Insider Non-Derivative Transactions at Altair Engineering Inc. (ALTR) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Mar 26, 2025, Brown Matthew Charles's relationship to Altair Engineering Inc. (ALTR) is Officer (Chief Financial Officer), and currently has 0 shares of Class A Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other ALTR insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Brown Matthew Charles - Insider Non-Derivative Transactions of ALTR Class A Common Stock

Brown Matthew Charles - Insider Non-Derivative Transactions at ALTR

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Mar 27, 2025	Disposition -- (Class A Common Stock)	66125	113	0
Mar 7, 2025	G -- (Class A Common Stock)	2527	0	66125
Mar 4, 2025	Sell -- (Class A Common Stock)	742	111.45	68652
Feb 27, 2025	Sell -- (Class A Common Stock)	3811	111.53	69394
Feb 13, 2025	Acquisition -- (Class A Common Stock)	17613	0	73205
Jan 15, 2025	Acquisition -- (Class A Common Stock)	73	82.42	55592
Dec 24, 2024	Sell -- (Class A Common Stock)	1048	108.9	55519
Jul 13, 2024	Acquisition -- (Class A Common Stock)	83	71.68	56567
Mar 16, 2024	Acquisition -- (Class A Common Stock)	8625	0	56484
Mar 5, 2024	Sell -- (Class A Common Stock)	883	85.32	47859
Feb 29, 2024	Sell -- (Class A Common Stock)	4363	83.65	48742
Jan 13, 2024	Acquisition -- (Class A Common Stock)	94	63.92	53105
Dec 21, 2023	Acquisition -- (Class A Common Stock)	10000	0	53011
Jul 15, 2023	Acquisition -- (Class A Common Stock)	140	42.65	43011
Mar 3, 2023	Acquisition -- (Class A Common Stock)	8250	0	42871
Mar 2, 2023	Sell -- (Class A Common Stock)	956	63.84	34621
Mar 2, 2023	Sell -- (Class A Common Stock)	348	63.84	35577
Mar 2, 2023	Sell -- (Class A Common Stock)	2173	63.84	35925
Jan 15, 2023	Acquisition -- (Class A Common Stock)	142	42.31	38098