MARTIN MARIETTA MATERIALS (MLM) Institutional Ownership Changes & 13F Activity

MARTIN MARIETTA MATERIALS (MLM). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Eagle Capital Management, Gardner Russo & Quinn, Sequoia Financial Advisors, Lountzis Asset Management, and Egerton Capital UK.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2019Gardner Russo & QuinnSell-58,7201,794,450$412,921
Q1 2019Egerton Capital UKBuy636,3382,204,702$443,542
Q1 2019Gardner Russo & QuinnSell-91,7671,853,170$372,821
Q1 2019First Eagle U.S. ValueSell-22,952304,306$61,220
Q4 2018Egerton Capital UKBuy652,3451,568,364$269,555
Q4 2018First Eagle U.S. ValueSell-113,620327,258$56,246
Q4 2018Gardner Russo & QuinnSell-42,3431,944,937$334,276
Q3 2018First Eagle U.S. ValueSell-51,939440,878$80,218
Q3 2018Gardner Russo & QuinnSell-3,9081,987,280$361,586
Q2 2018First Eagle U.S. ValueSell-26,918492,817$110,061
Q2 2018Gardner Russo & QuinnSell-24,4101,991,188$444,692
Q1 2018Gardner Russo & QuinnBuy3,8412,015,598$417,833
Q4 2017Egerton Capital UKSell-834,361916,019$202,477
Q4 2017Gardner Russo & QuinnSell-22,3942,011,757$444,679
Q3 2017Gardner Russo & QuinnBuy268,1982,034,151$419,503
Q3 2017Egerton Capital UKSell-217,4851,750,380$360,981
Q2 2017Egerton Capital UKBuy1,509,2581,967,865$438,007
Q2 2017Renaissance Technologies LLCBuy120,900122,794$27,331
Q2 2017Gardner Russo & QuinnSell-13,7191,765,953$393,066
Q1 2017Egerton Capital UKSell-300,946458,607$100,091
Q1 2017Renaissance Technologies LLCSell-208,4001,894$413
Q1 2017First Eagle U.S. ValueSell-65,100519,735$113,432
Q1 2017Gardner Russo & QuinnSell-34,6671,779,672$388,413
Q4 2016First Eagle U.S. ValueSell-862,105584,835$129,558
Q4 2016Gardner Russo & QuinnSell-254,9971,814,339$401,931
Q4 2016Egerton Capital UKSell-245,817759,553$168,264
Q4 2016Renaissance Technologies LLCBuy163,800210,294$46,586
Q3 2016Egerton Capital UKSell-467,5821,005,370$180,072
Q3 2016First Eagle U.S. ValueBuy53,4311,446,940$259,162
Q3 2016Gardner Russo & QuinnSell-16,2222,069,336$370,639

Frequently asked questions about MLM activity

  • Which institutional owners are buying MLM?

    Institutional owners buying MLM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in MLM activity?

    "Buy" means an investor increased their reported position in MLM compared to the prior reporting period. This reflects growing exposure to MARTIN MARIETTA MATERIALS (MLM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in MLM increasing?

    Institutional interest in MLM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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