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 2024Lountzis Asset ManagementSell-639,259$5,016,526
Q1 2024Gardner Russo & QuinnSell-153,088787,480$483,465,519
Q1 2024Sequoia Financial AdvisorsSell-6205,829$3,578,682
Q1 2024Lountzis Asset ManagementSell-4909,322$5,723,149
Q4 2023Gardner Russo & QuinnSell-18,195940,568$469,258,751
Q4 2023Sequoia Financial AdvisorsBuy5,4006,449$3,217,489
Q4 2023Lountzis Asset ManagementSell-639,812$4,895,305
Q3 2023Gardner Russo & QuinnSell-14,757958,763$393,553,088
Q3 2023Sequoia Financial AdvisorsBuy541,049$430,606
Q2 2023Gardner Russo & QuinnSell-27,818973,520$449,464,238
Q2 2023Lountzis Asset ManagementSell-4949,875$4,535
Q2 2023Sequoia Financial AdvisorsSell-41995$459,392
Q1 2023Gardner Russo & QuinnSell-9,0651,001,338$355,535,012
Q1 2023Renaissance Technologies LLCBuy2,6007,494$2,661
Q1 2023Sequoia Financial AdvisorsSell-2621,036$367,848
Q1 2023Lountzis Asset ManagementSell-610,369$3,682
Q4 2022Gardner Russo & QuinnSell-57,3801,010,403$341,485,916
Q4 2022Lountzis Asset ManagementSell-2,09910,375$3,702
Q4 2022Sequoia Financial AdvisorsBuy6271,298$438,688
Q3 2022Renaissance Technologies LLCSell-21,5004,894$1,576
Q3 2022Gardner Russo & QuinnSell-12,0441,067,783$343,922
Q3 2022Sequoia Financial AdvisorsSell-255671$216
Q3 2022Lountzis Asset ManagementSell-22512,474$4,017
Q2 2022Renaissance Technologies LLCSell-23,07626,394$7,898
Q2 2022Gardner Russo & QuinnSell-13,1441,079,827$323,127
Q1 2022Gardner Russo & QuinnSell-75,7071,092,971$420,674
Q1 2022Lountzis Asset ManagementSell-4412,699$4,887,718
Q1 2022Sequoia Financial AdvisorsBuy18926$356
Q1 2022First Eagle U.S. ValueBuy17111$43
Q4 2021First Eagle U.S. ValueSell-114,90694$41

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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