Martin Marietta Materials Inc

MLMNYSE
$494.44
-2.32-0.47%
al cierre: Sep 17, 5:00 PM EST
$494.44
N/A
After hour: 4:00 PM EST

Martin Marietta Materials Ownership & Insider Activity

Martin Marietta Materials (MLM) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 1.3% of shares outstanding. Institutional investors hold 60.1%.

Shares Outstanding

71.019M

Shares Float

63.558M

Insider Shares Owned

942.637K

Insider % Owned

1.3%

Institutional Shares Held

42.679M

Institutional % Held

60.1%

Ownership Breakdown

Net Insider Activity by Month

Martin Marietta Materials Insider Transactions (Last 6 Months)

No insider filings in the last 6 months.

DateMemberPartyChamberActionAmount
Aug 25, 2026April McClain DelaneyDHouseSale$250,001 - $500,000
Aug 19, 2026April McClain DelaneyDHousePurchase$1,001 - $15,000