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Martin Marietta Materials Inc

MLM
Exchange
NYSE
Industry
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
SEC CIK
0000916076

No open-market purchases or sales by Martin Marietta Materials Inc insiders were filed in the last 90 days; 1,079 institutions reported holding it in 13F filings for Q2 2026, worth $34.2B in total; 4 superinvestors hold it, including TCI Fund Management and Gardner Russo & Quinn.

13F holders, Q1 2026

Institutional positions in Martin Marietta Materials Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,077
−27 vs. Q4 2025
Shares held
58.4M
+7.30M (+14.3%) vs. Q4 2025
Total value
$34.3B
+$2.51B (+7.9%) vs. Q4 2025
New holders
103
370 more added
Sold out
130
377 more reduced

13 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MLM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 1,077 institutions
Q1 2021: 692 institutionsQ2 2021: 696 institutionsQ3 2021: 700 institutionsQ4 2021: 775 institutionsQ1 2022: 763 institutionsQ2 2022: 728 institutionsQ3 2022: 736 institutionsQ4 2022: 768 institutionsQ1 2023: 746 institutionsQ2 2023: 804 institutionsQ3 2023: 815 institutionsQ4 2023: 889 institutionsQ1 2024: 957 institutionsQ2 2024: 940 institutionsQ3 2024: 948 institutionsQ4 2024: 992 institutionsQ1 2025: 953 institutionsQ2 2025: 999 institutionsQ3 2025: 1,053 institutionsQ4 2025: 1,117 institutionsQ1 2026: 1,077 institutionsQ2 2026: 1,079 institutions
Value heldQ1 2026: $34.3B
Q1 2021: $19.4BQ2 2021: $20.3BQ3 2021: $19.7BQ4 2021: $25.6BQ1 2022: $22.7BQ2 2022: $17.5BQ3 2022: $18.8BQ4 2022: $19.7BQ1 2023: $20.7BQ2 2023: $27.0BQ3 2023: $24.1BQ4 2023: $29.3BQ1 2024: $36.4BQ2 2024: $32.3BQ3 2024: $32.4BQ4 2024: $30.5BQ1 2025: $28.5BQ2 2025: $32.8BQ3 2025: $36.7BQ4 2025: $37.1BQ1 2026: $34.3BQ2 2026: $34.2B
Institutions holding MLM and their total value by quarter
QuarterHoldersValue
Q2 20261,079$34.2B
Q1 20261,077$34.3B
Q4 20251,117$37.1B
Q3 20251,053$36.7B
Q2 2025999$32.8B
Q1 2025953$28.5B
Q4 2024992$30.5B
Q3 2024948$32.4B
Q2 2024940$32.3B
Q1 2024957$36.4B
Q4 2023889$29.3B
Q3 2023815$24.1B
Q2 2023804$27.0B
Q1 2023746$20.7B
Q4 2022768$19.7B
Q3 2022736$18.8B
Q2 2022728$17.5B
Q1 2022763$22.7B
Q4 2021775$25.6B
Q3 2021700$19.7B
Q2 2021696$20.3B
Q1 2021692$19.4B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q4 2025.

Institutions holding MLM in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Stonebridge Capital Management Inc975$574.0K0.26%+975New
Rothschild Capital Partners, LLC972$572.2K0.14%+972New
Vise Technologies, Inc.914$568.9K0.01%00.0%Unchanged
Defined Wealth Management, LLC965$568.1K0.33%−10−1.0%Reduced
Catalytic Wealth RIA, LLC961$565.7K0.02%−76−7.3%Reduced
Farther Finance Advisors, LLC941$563.5K0.01%+51+5.7%Added
Premier Path Wealth Partners, LLC941$553.9K0.07%+39+4.3%Added
Integrated Wealth Concepts LLC939$552.5K0.00%+328+53.7%Added
Frank, Rimerman Advisors LLC936$551.0K0.04%00.0%Unchanged
Evercore Wealth Management, LLC928$546.3K0.01%00.0%Unchanged
Sagespring Wealth Partners, LLC927$545.6K0.01%+20+2.2%Added
Palumbo Wealth Management LLC925$544.7K0.13%+925New
Myriad Asset Management US LP917$540.0K0.81%+110+13.6%Added
Advisory Services Network, LLC917$539.8K0.01%−58−5.9%Reduced
nVerses Capital, LLC916$539.2K0.49%+916New
NBT Bank N A915$538.6K0.04%+50+5.8%Added
Midwest Trust Co910$535.7K0.01%+4+0.4%Added
TD Private Client Wealth LLC908$534.5K0.01%−161−15.1%Reduced
Balyasny Asset Management LLC900$529.8K0.00%−175,011−99.5%Reduced
Teacher Retirement System of Texas899$529.2K0.00%−1,097−55.0%Reduced
Blackstone Group Inc.884$520.4K0.00%00.0%Unchanged
Aprio Wealth Management, LLC883$519.8K0.03%+18+2.1%Added
Alteri Wealth LLC880$518.0K0.17%+17+2.0%Added
Trust Point Inc.877$516.3K0.04%+443+102.1%Added
Independence Bank of Kentucky876$515.7K0.07%−26−2.9%Reduced
Concurrent Investment Advisors, LLC875$515.3K0.01%−457−34.3%Reduced
Siemens Fonds Invest GmbH873$513.9K0.03%−292−25.1%Reduced
MQS Management LLC869$511.6K0.35%+869New
Personal Cfo Solutions, LLC859$505.8K0.07%+60+7.5%Added
Snowden Capital Advisors LLC853$502.2K0.01%−92−9.7%Reduced
Panagora Asset Management Inc845$497.4K0.00%00.0%Unchanged
Willner & Heller, LLC844$496.9K0.37%+1+0.1%Added
Davis Investment Partners, LLC835$491.7K0.17%00.0%Unchanged
Prosperity Consulting Group, LLC821$483.3K0.02%+2+0.2%Added
Crestwood Advisors Group LLC821$483.3K0.01%+395+92.7%Added
Greenland Capital Management LP820$482.7K0.10%+820New
Red Door Wealth Management, LLC818$481.5K0.05%−70−7.9%Reduced
Connecticut Wealth Management, LLC818$481.5K0.02%−8−1.0%Reduced
Clarendon Private LLC817$481.0K0.37%−232−22.1%Reduced
Herold Advisors, Inc.815$479.8K0.11%−140−14.7%Reduced
RMR Wealth Builders811$477.4K0.04%−1−0.1%Reduced
Corient IA LLC810$476.8K0.45%−190−19.0%Reduced
Michael B. Yongue804$473.3K0.35%−310−27.8%Reduced
Circle Wealth Management, LLC803$472.7K0.01%−185−18.7%Reduced
Marks Group Wealth Management, Inc795$468.0K0.05%−10−1.2%Reduced
Financial Management Professionals, Inc.795$468.0K0.05%+175+28.2%Added
Northwestern Mutual Wealth Management Co792$466.3K0.00%+121+18.0%Added
Concentric Capital Strategies, LP788$463.9K0.04%−3,731−82.6%Reduced
Bridges Investment Management Inc786$462.7K0.01%00.0%Unchanged
Blue Edge Capital, LLC783$460.9K0.06%00.0%Unchanged
MainStreet Investment Advisors LLC765$450.3K0.07%−28−3.5%Reduced
Everence Capital Management Inc760$447.0K0.03%00.0%Unchanged
F/M Investments LLC759$446.8K0.03%00.0%Unchanged
Gilman Hill Asset Management, LLC752$442.7K0.07%00.0%Unchanged
Wedmont Private Capital706$440.8K0.01%−8−1.1%Reduced
Ellevest, Inc.743$437.4K0.06%+194+35.3%Added
Anchyra Partners LLC730$429.7K0.13%+56+8.3%Added
CWS Financial Advisors, LLC719$423.3K0.11%00.0%Unchanged
Vontobel Holding Ltd.719$423.3K0.00%+10+1.4%Added
USA Financial Portformulas Corp718$422.7K0.08%+718New
Impact Capital Partners LLC712$419.1K0.13%+16+2.3%Added
Miracle Mile Advisors, LLC710$418.1K0.01%+6+0.9%Added
CX Institutional708$417.0K0.01%−40−5.3%Reduced
Independent Advisor Alliance707$416.3K0.00%−72−9.2%Reduced
Shufro Rose & Co LLC700$412.1K0.03%−37−5.0%Reduced
Holt Capital Advisors, L.L.C. dba Holt Capital Partners, L.P.700$412.1K0.06%00.0%Unchanged
Hardin Capital Partners, LLC700$412.1K0.19%00.0%Unchanged
Pallas Capital Advisors LLC699$411.5K0.02%−48−6.4%Reduced
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management693$408.0K0.01%+48+7.4%Added
Huber Capital Management LLC692$407.4K0.06%−1,400−66.9%Reduced
CWA Asset Management Group, LLC689$405.6K0.01%−53−7.1%Reduced
Prosperity Financial Group, Inc.684$402.7K0.15%+25+3.8%Added
Aaron Wealth Advisors683$402.2K0.02%−19−2.7%Reduced
Spreng Capital Management, Inc.682$401.5K0.19%+26+4.0%Added
Sym Financial Corp675$397.4K0.04%+28+4.3%Added
Everpar Advisors LLC673$396.2K0.14%−1−0.1%Reduced
Hengehold Capital Management LLC669$393.5K0.03%−271−28.8%Reduced
AlphaCore Capital LLC663$390.3K0.01%+140+26.8%Added
Arthur M. Cohen & Associates, LLC650$389.3K0.07%+50+8.3%Added
Family Management Corp660$388.5K0.05%−39−5.6%Reduced
American Institute for Advanced Investment Management, LLP660$388.5K0.25%00.0%Unchanged
Motco653$384.4K0.04%00.0%Unchanged
Ashton Thomas Private Wealth, LLC651$383.2K0.01%+227+53.5%Added
Defender Capital, LLC.650$382.6K0.14%00.0%Unchanged
Massar Capital Management, LP650$382.6K0.08%00.0%Unchanged
Advisor OS, LLC644$379.1K0.03%+28+4.5%Added
WPWealth LLP637$375.0K0.06%00.0%Unchanged
Prime Capital Investment Advisors, LLC635$374.0K0.00%+50+8.5%Added
Mesirow Financial Investment Management, Inc.631$370.9K0.01%+7+1.1%Added
Gateway Wealth Partners, LLC623$366.7K0.01%+623New
Choate Investment Advisors620$365.0K0.01%+31+5.3%Added
First Citizens Bank & Trust Co618$363.8K0.01%+48+8.4%Added
Norden Group LLC612$360.3K0.03%−18−2.9%Reduced
Compass Ion Advisors, LLC611$359.7K0.03%−1−0.2%Reduced
First Nebraska Trust Co608$357.9K0.03%00.0%Unchanged
Robertson Stephens Wealth Management, LLC599$352.4K0.01%+9+1.5%Added
CM Wealth Advisors LLC595$350.3K0.07%00.0%Unchanged
Menard Financial Group LLC590$347.3K0.24%−4−0.7%Reduced
Ramirez Asset Management, Inc.590$347.3K0.04%00.0%Unchanged
Chilton Investment Co LLC581$342.0K0.01%−18,100−96.9%Reduced