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NYSE: MLM
Martin Marietta Materials Inc Stock Ownership - Who owns Martin Marietta Materials?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Martin Marietta Materials Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
David C. WajsgrasDirector2026-02-2756$676.57
$37.89kBuy
John J. KoraleskiDirector2026-02-2769$676.57
$46.68kBuy
Thomas PikeDirector2026-02-2747$676.57
$31.80kBuy
Jason Paul FlynnSVP and CIO2026-02-2430$696.85
$20.91kSell
Michael J. PetroSVP and CFO2026-02-2494$696.85
$65.50kSell
Robert J. CardinSVP Controller CAO2026-02-24103$696.85
$71.78kSell
C. Howard NyeChairman Pres CEO2026-02-241,221$696.85
$850.85kSell
Jason Paul FlynnSVP and CIO2026-02-23177$683.60
$121.00kSell
C. Howard NyeChairman Pres CEO2026-02-231,805$683.60
$1.23MSell
Donald A. McCunniffEVP and CHRO2026-02-23192$683.60
$131.25kSell

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Net Insider Buy/Sell (L12M) Ownership

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MLM Shareholders

What type of owners hold Martin Marietta Materials Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Vanguard Group Inc12.23%7,373,884$4.30BInstitution
Southeastern Asset Management Inc10.29%6,205,303$3.62BInsider
Spo Advisory Corp7.81%4,709,835$2.75BInsider
Blackrock Inc7.44%4,486,226$2.62BInstitution
Holding Nns6.13%3,696,132$2.16BInsider
Fmr LLC4.84%2,921,794$1.71BInstitution
State Street Corp4.60%2,771,720$1.62BInstitution
Victory Capital Management Inc4.06%2,448,928$1.43BInstitution
Bank Of America Corp3.94%2,378,469$1.39BInstitution
Jpmorgan Chase Co3.70%2,229,587$1.30BInstitution

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MLM vs Building Material Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MLM79.24%20.76%Net SellingNet Selling
VMC93.71%6.29%Net SellingNet Selling
AMRZ47.00%0.44%Net BuyingNet Buying
CX3.49%0.29%
JHX38.76%0.00%
View Top Building Material Stocks

Martin Marietta Materials Stock Ownership FAQ

Who owns Martin Marietta Materials?

Martin Marietta Materials (NYSE: MLM) is owned by 98.73% institutional shareholders, 25.87% Martin Marietta Materials insiders, and 0.00% retail investors. Southeastern Asset Management Inc is the largest individual Martin Marietta Materials shareholder, owning 6.21M shares representing 10.29% of the company. Southeastern Asset Management Inc's Martin Marietta Materials shares are currently valued at $3.63B.

If you're new to stock investing, here's how to buy Martin Marietta Materials stock.
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