McCunniff Donald A. - Insider Non-Derivative Transactions at MARTIN MARIETTA MATERIALS INC (MLM) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 16, 2025, McCunniff Donald A.'s relationship to MARTIN MARIETTA MATERIALS INC (MLM) is Officer (EVP and CHRO), and currently has 3,473 shares of 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 MLM insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

McCunniff Donald A. - Insider Non-Derivative Transactions of MLM Common Stock

McCunniff Donald A. - Insider Non-Derivative Transactions at MLM

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 17, 2025	F -- (Common Stock)	50	629.49	3473
Mar 6, 2025	Sell -- (Common Stock)	1332	475	3523
Mar 6, 2025	M -- (Common Stock)	1332	154.58	4855
Feb 22, 2025	Acquisition -- (Common Stock)	1543	0	3523