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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
Hengehold Capital Management LLC669$393.5K0.03%−271−28.8%Reduced
Everpar Advisors LLC673$396.2K0.14%−1−0.1%Reduced
Sym Financial Corp675$397.4K0.04%+28+4.3%Added
Spreng Capital Management, Inc.682$401.5K0.19%+26+4.0%Added
Aaron Wealth Advisors683$402.2K0.02%−19−2.7%Reduced
Prosperity Financial Group, Inc.684$402.7K0.15%+25+3.8%Added
CWA Asset Management Group, LLC689$405.6K0.01%−53−7.1%Reduced
Huber Capital Management LLC692$407.4K0.06%−1,400−66.9%Reduced
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management693$408.0K0.01%+48+7.4%Added
Pallas Capital Advisors LLC699$411.5K0.02%−48−6.4%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
Independent Advisor Alliance707$416.3K0.00%−72−9.2%Reduced
CX Institutional708$417.0K0.01%−40−5.3%Reduced
Miracle Mile Advisors, LLC710$418.1K0.01%+6+0.9%Added
Impact Capital Partners LLC712$419.1K0.13%+16+2.3%Added
USA Financial Portformulas Corp718$422.7K0.08%+718New
CWS Financial Advisors, LLC719$423.3K0.11%00.0%Unchanged
Vontobel Holding Ltd.719$423.3K0.00%+10+1.4%Added
Anchyra Partners LLC730$429.7K0.13%+56+8.3%Added
Ellevest, Inc.743$437.4K0.06%+194+35.3%Added
Wedmont Private Capital706$440.8K0.01%−8−1.1%Reduced
Gilman Hill Asset Management, LLC752$442.7K0.07%00.0%Unchanged
F/M Investments LLC759$446.8K0.03%00.0%Unchanged
Everence Capital Management Inc760$447.0K0.03%00.0%Unchanged
MainStreet Investment Advisors LLC765$450.3K0.07%−28−3.5%Reduced
Blue Edge Capital, LLC783$460.9K0.06%00.0%Unchanged
Bridges Investment Management Inc786$462.7K0.01%00.0%Unchanged
Concentric Capital Strategies, LP788$463.9K0.04%−3,731−82.6%Reduced
Northwestern Mutual Wealth Management Co792$466.3K0.00%+121+18.0%Added
Marks Group Wealth Management, Inc795$468.0K0.05%−10−1.2%Reduced
Financial Management Professionals, Inc.795$468.0K0.05%+175+28.2%Added
Circle Wealth Management, LLC803$472.7K0.01%−185−18.7%Reduced
Michael B. Yongue804$473.3K0.35%−310−27.8%Reduced
Corient IA LLC810$476.8K0.45%−190−19.0%Reduced
RMR Wealth Builders811$477.4K0.04%−1−0.1%Reduced
Herold Advisors, Inc.815$479.8K0.11%−140−14.7%Reduced
Clarendon Private LLC817$481.0K0.37%−232−22.1%Reduced
Red Door Wealth Management, LLC818$481.5K0.05%−70−7.9%Reduced
Connecticut Wealth Management, LLC818$481.5K0.02%−8−1.0%Reduced
Greenland Capital Management LP820$482.7K0.10%+820New
Crestwood Advisors Group LLC821$483.3K0.01%+395+92.7%Added
Prosperity Consulting Group, LLC821$483.3K0.02%+2+0.2%Added
Davis Investment Partners, LLC835$491.7K0.17%00.0%Unchanged
Willner & Heller, LLC844$496.9K0.37%+1+0.1%Added
Panagora Asset Management Inc845$497.4K0.00%00.0%Unchanged
Snowden Capital Advisors LLC853$502.2K0.01%−92−9.7%Reduced
Personal Cfo Solutions, LLC859$505.8K0.07%+60+7.5%Added
MQS Management LLC869$511.6K0.35%+869New
Siemens Fonds Invest GmbH873$513.9K0.03%−292−25.1%Reduced
Concurrent Investment Advisors, LLC875$515.3K0.01%−457−34.3%Reduced
Independence Bank of Kentucky876$515.7K0.07%−26−2.9%Reduced
Trust Point Inc.877$516.3K0.04%+443+102.1%Added
Alteri Wealth LLC880$518.0K0.17%+17+2.0%Added
Aprio Wealth Management, LLC883$519.8K0.03%+18+2.1%Added
Blackstone Group Inc.884$520.4K0.00%00.0%Unchanged
Teacher Retirement System of Texas899$529.2K0.00%−1,097−55.0%Reduced
Balyasny Asset Management LLC900$529.8K0.00%−175,011−99.5%Reduced
TD Private Client Wealth LLC908$534.5K0.01%−161−15.1%Reduced
Midwest Trust Co910$535.7K0.01%+4+0.4%Added
NBT Bank N A915$538.6K0.04%+50+5.8%Added
nVerses Capital, LLC916$539.2K0.49%+916New
Advisory Services Network, LLC917$539.8K0.01%−58−5.9%Reduced
Myriad Asset Management US LP917$540.0K0.81%+110+13.6%Added
Palumbo Wealth Management LLC925$544.7K0.13%+925New
Sagespring Wealth Partners, LLC927$545.6K0.01%+20+2.2%Added
Evercore Wealth Management, LLC928$546.3K0.01%00.0%Unchanged
Frank, Rimerman Advisors LLC936$551.0K0.04%00.0%Unchanged
Integrated Wealth Concepts LLC939$552.5K0.00%+328+53.7%Added
Premier Path Wealth Partners, LLC941$553.9K0.07%+39+4.3%Added
Farther Finance Advisors, LLC941$563.5K0.01%+51+5.7%Added
Catalytic Wealth RIA, LLC961$565.7K0.02%−76−7.3%Reduced
Defined Wealth Management, LLC965$568.1K0.33%−10−1.0%Reduced
Vise Technologies, Inc.914$568.9K0.01%00.0%Unchanged
Rothschild Capital Partners, LLC972$572.2K0.14%+972New
Tower Research Capital LLC (TRC)975$574.0K0.01%−1,290−57.0%Reduced
Stonebridge Capital Management Inc975$574.0K0.26%+975New
Net Worth Advisory Group987$580.9K0.12%−82−7.7%Reduced
Umb Bank N A988$581.6K0.01%+11+1.1%Added
Merrion Investment Management Co, LLC1,000$588.7K0.32%00.0%Unchanged
Ferguson Wellman Capital Management, Inc1,004$591.0K0.01%−4−0.4%Reduced
Baker Tilly Wealth Management, LLC1,005$591.7K0.14%+3+0.3%Added
Recurrent Investment Advisors LLC1,008$593.4K0.04%00.0%Unchanged
Jump Financial, LLC1,012$595.7K0.01%−1,606−61.3%Reduced
Stoneridge Investment Partners LLC1,014$597.0K0.43%+1,014New
Adalta Capital Management LLC1,015$597.5K0.29%00.0%Unchanged
Welch Group, LLC1,015$597.5K0.02%00.0%Unchanged
WBH Advisory Inc1,000$598.9K0.04%−109−9.8%Reduced
Aventura Private Wealth, LLC1,033$608.2K0.22%−24−2.3%Reduced
SFMG, LLC1,037$610.5K0.04%00.0%Unchanged
Equitable Holdings, Inc.1,011$610.7K0.00%+614+154.7%Added
Fifth Third Wealth Advisors LLC1,043$614.0K0.02%+167+19.1%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC1,043$614.2K0.02%+299+40.2%Added
Massmutual Trust Co FSB1,047$616.3K0.02%−70−6.3%Reduced
Patron Partners Advisors, LLC1,061$624.8K0.28%+195+22.5%Added
Thurston, Springer, Miller, Herd & Titak, Inc.1,065$626.9K0.26%−21−1.9%Reduced
Caisse de Depot Et Placement du Quebec1,068$628.7K0.00%+1,068New
Summit Financial, LLC1,075$632.7K0.01%+119+12.4%Added
Evolve Private Wealth, LLC1,079$635.2K0.03%−114−9.6%Reduced