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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, Q3 2025

Institutional positions in Martin Marietta Materials Inc as of Sep 30, 2025. 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
1,053
+68 vs. Q2 2025
Shares held
58.2M
−919.2K (−1.6%) vs. Q2 2025
Total value
$36.7B
+$4.20B (+12.9%) vs. Q2 2025
New holders
132
366 more added
Sold out
64
344 more reduced

14 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 1,053 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 heldQ3 2025: $36.7B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q2 2025.

Institutions holding MLM in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Turning Point Benefit Group, Inc.1$6200.00%+1New
DecisionPoint Financial, LLC1$6210.00%00.0%Unchanged
Hurley Capital, LLC1$6300.00%+1New
Stone House Investment Management, LLC1$6300.00%+1New
E Fund Management (Hong Kong) Co., Ltd.1$6300.00%+1New
Davis Capital Management1$6300.00%+1New
Quaker Wealth Management, LLC1$6310.00%00.0%Unchanged
DHJJ Financial Advisors, Ltd.1$6310.00%00.0%Unchanged
Cherry Tree Wealth Management, LLC1$6310.00%00.0%Unchanged
Financial Consulate, Inc1$6310.00%+1New
Seneschal Advisors, LLC1$6310.00%+1New
Sound Income Strategies, LLC1$6340.00%00.0%Unchanged
Smallwood Wealth Investment Management, LLC2$1.26K0.00%+2New
Cape Investment Advisory, Inc.2$1.26K0.00%−1−33.3%Reduced
Delos Wealth Advisors, LLC2$1.26K0.00%00.0%Unchanged
HFM Investment Advisors, LLC2$1.26K0.00%00.0%Unchanged
Godsey & Gibb Associates2$1.26K0.00%+2New
Texas Capital Bancshares Inc2$1.26K0.00%+2New
Winnow Wealth LLC2$1.26K0.00%+2New
Kayne Anderson Rudnick Investment Management LLC2$1.62K0.00%−8−80.0%Reduced
Barrett & Company, Inc.3$1.89K0.00%00.0%Unchanged
TFC Financial Management3$1.89K0.00%00.0%Unchanged
SJS Investment Consulting Inc.3$1.89K0.00%00.0%Unchanged
Nemes Rush Group LLC3$1.89K0.00%+1+50.0%Added
Principia Wealth Advisory, LLC3$1.89K0.00%+2+200.0%Added
HHM Wealth Advisors, LLC3$1.89K0.00%+3New
Capital Advisors, Ltd. LLC3$2.00K0.00%00.0%Unchanged
Dogwood Wealth Management LLC4$2.52K0.00%00.0%Unchanged
Heritage Wealth Advisors4$2.52K0.00%00.0%Unchanged
Bay Harbor Wealth Management, LLC4$2.52K0.00%+1+33.3%Added
Beaird Harris Wealth Management, LLC4$2.52K0.00%−1−20.0%Reduced
Rialto Wealth Management, LLC4$2.52K0.00%+1+33.3%Added
TD Capital Management LLC4$2.54K0.00%00.0%Unchanged
Quest 10 Wealth Builders, Inc.5$2.92K0.00%+4+400.0%Added
Penserra Capital Management LLC6$3.00K0.00%00.0%Unchanged
Harvest Fund Management Co., Ltd4$3.00K0.00%+4New
Morse Asset Management, Inc5$3.15K0.00%00.0%Unchanged
First United Bank Trust5$3.15K0.00%+5New
Sofos Investments, Inc.5$3.16K0.00%+5New
DiNuzzo Private Wealth, Inc.6$3.70K0.00%00.0%Unchanged
Hughes Financial Services, LLC6$3.70K0.00%00.0%Unchanged
Sunbelt Securities, Inc.6$3.78K0.00%−3−33.3%Reduced
MTM Investment Management, LLC6$3.78K0.00%00.0%Unchanged
Granite FO LLC6$3.78K0.00%00.0%Unchanged
MPWM Advisory Solutions, LLC6$3.78K0.00%00.0%Unchanged
Breakwater Investment Management6$3.78K0.00%+6New
Key Financial Inc7$4.34K0.00%+2+40.0%Added
Bellevue Asset Management, LLC7$4.41K0.00%00.0%Unchanged
C M Bidwell & Associates Ltd7$4.41K0.00%00.0%Unchanged
Tidemark, LLC7$4.41K0.00%00.0%Unchanged
Mowery & Schoenfeld Wealth Management, LLC7$4.41K0.01%00.0%Unchanged
Wealth Watch Advisors, INC7$4.41K0.00%+7New
Dunhill Financial, LLC7$4.67K0.00%00.0%Unchanged
Creative Financial Designs Inc8$5.04K0.00%−13−61.9%Reduced
Mascoma Wealth Management LLC8$5.04K0.00%00.0%Unchanged
Marquette Asset Management, LLC8$5.04K0.00%+8New
HighMark Wealth Management LLC9$5.67K0.00%00.0%Unchanged
Asset Planning,Inc9$5.67K0.00%00.0%Unchanged
Ogorek Anthony Joseph11$6.00K0.00%00.0%Unchanged
Aspect Partners, LLC10$6.30K0.00%−54−84.4%Reduced
CoreCap Advisors, LLC10$6.30K0.00%00.0%Unchanged
Abound Wealth Management10$6.30K0.00%00.0%Unchanged
Guerra Advisors Inc10$6.30K0.00%+10New
SOA Wealth Advisors, LLC.6,812$6.81K0.00%00.0%Unchanged
Bangor Savings Bank11$6.93K0.00%00.0%Unchanged
Cetera Trust Company, N.A11$6.93K0.00%00.0%Unchanged
Kilter Group LLC11$6.93K0.00%00.0%Unchanged
Proffitt & Goodson Inc11$6.93K0.00%+11New
Highline Wealth Partners LLC11$6.94K0.00%+5+83.3%Added
Bell Investment Advisors, Inc12$7.56K0.00%−1−7.7%Reduced
Howard Hughes Medical Institute13$8.19K0.00%00.0%Unchanged
Red Tortoise LLC13$8.19K0.00%00.0%Unchanged
Rossby Financial, LCC14$8.68K0.00%00.0%Unchanged
United Community Bank14$8.82K0.00%+4+40.0%Added
Albion Financial Group14$8.82K0.00%+14New
Steigerwald, Gordon & Koch Inc.14$8.82K0.00%+14New
Ritter Daniher Financial Advisory LLC14$8.82K0.00%+14New
Avion Wealth15$9.00K0.00%+1+7.1%Added
Brown, Lisle/Cummings, Inc.14$9.07K0.00%00.0%Unchanged
Clark Wealth Partners15$9.34K0.01%−1−6.3%Reduced
Icon Advisers Inc15$9.45K0.00%00.0%Unchanged
POM Investment Strategies, LLC15$9.45K0.01%00.0%Unchanged
Activest Wealth Management15$9.45K0.00%+1+7.1%Added
Boreal Capital Management LLC16$10.1K0.01%00.0%Unchanged
Truvestments Capital LLC16$10.1K0.00%+6+60.0%Added
Bruce G. Allen Investments, LLC17$10.7K0.01%00.0%Unchanged
UMA Financial Services, Inc.17$10.7K0.00%+15+750.0%Added
Halbert Hargrove Global Advisors, LLC17$10.7K0.00%+17New
Cloud Capital Management, LLC18$11.0K0.01%+18New
North Capital, Inc.18$11.3K0.01%+1+5.9%Added
Private Wealth Management Group, LLC18$11.3K0.00%00.0%Unchanged
Grove Bank & Trust19$12.0K0.00%+8+72.7%Added
Prestige Wealth Management Group LLC19$12.0K0.00%00.0%Unchanged
Sittner & Nelson, LLC20$12.6K0.00%−3−13.0%Reduced
Chelsea Counsel Co20$12.6K0.01%00.0%Unchanged
First Command Advisory Services, Inc.20$12.6K0.00%00.0%Unchanged
Orion Capital Management LLC20$12.6K0.00%+11+122.2%Added
Capital Analysts, LLC21$13.0K0.00%00.0%Unchanged
Delta Asset Management LLC21$13.2K0.00%00.0%Unchanged
Trust Co of Vermont21$13.2K0.00%00.0%Unchanged