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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
Michael J. PetroCFO;SVP2026-08-03368$542.27
$199.56kSell
Thomas PikeDirector2026-05-2959$581.64
$34.32kBuy
Martin J. LyonsDirector2026-05-2961$581.64
$35.48kBuy
David C. WajsgrasDirector2026-05-2969$581.64
$40.13kBuy
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
C. Howard NyeChairman Pres CEO2026-02-241,221$696.85
$850.85kSell
Michael J. PetroSVP and CFO2026-02-2494$696.85
$65.50kSell
Robert J. CardinSVP Controller CAO2026-02-24103$696.85
$71.78kSell

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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
Southeastern Asset Management Inc10.33%6,205,303$3.38BInsider
Spo Advisory Corp7.84%4,709,835$2.56BInsider
Blackrock Inc7.80%4,685,757$2.55BInstitution
Vanguard Capital Management LLC6.52%3,917,383$2.13BInstitution
Holding Nns6.15%3,696,132$2.01BInsider
Vanguard Portfolio Management LLC5.26%3,160,444$1.72BInstitution
State Street Corp4.79%2,877,568$1.57BInstitution
Fmr LLC4.34%2,607,979$1.42BInstitution
Bank Of America Corp4.00%2,399,779$1.31BInstitution
Principal Financial Group Inc3.49%2,093,942$1.14BInstitution

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MLM vs Building Material Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MLM78.89%21.11%Net SellingNet Selling
VMC93.63%6.37%Net SellingNet Selling
AMRZ43.72%0.46%Net BuyingNet Buying
JHX46.57%0.22%Net BuyingNet Buying
CX3.51%1.82%Net SellingNet Selling
View Top Building Material Stocks

Martin Marietta Materials Stock Ownership FAQ

Who owns Martin Marietta Materials?

Martin Marietta Materials (NYSE: MLM) is owned by 97.14% institutional shareholders, 26.00% 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 10.33% of the company. Southeastern Asset Management Inc's Martin Marietta Materials shares are currently valued at $3.38B.

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