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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, Q4 2025

Institutional positions in Martin Marietta Materials Inc as of Dec 31, 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
1,117
+83 vs. Q3 2025
Shares held
59.6M
+1.51M (+2.6%) vs. Q3 2025
Total value
$37.1B
+$525.1M (+1.4%) vs. Q3 2025
New holders
155
362 more added
Sold out
72
352 more reduced

19 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,117 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 heldQ4 2025: $37.1B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q3 2025.

Institutions holding MLM in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Quest 10 Wealth Builders, Inc.1$3990.00%−4−80.0%Reduced
Turning Point Benefit Group, Inc.1$6220.00%00.0%Unchanged
Breakwater Investment Management1$6230.00%−5−83.3%Reduced
Principia Wealth Advisory, LLC1$6230.00%−2−66.7%Reduced
Financial Consulate, Inc1$6230.00%00.0%Unchanged
Quaker Wealth Management, LLC1$6230.00%00.0%Unchanged
DHJJ Financial Advisors, Ltd.1$6230.00%00.0%Unchanged
Cherry Tree Wealth Management, LLC1$6230.00%00.0%Unchanged
Seneschal Advisors, LLC1$6230.00%00.0%Unchanged
Stone House Investment Management, LLC1$6230.00%00.0%Unchanged
DecisionPoint Financial, LLC1$6230.00%00.0%Unchanged
Arcadia Investment Management Corp1$6230.00%+1New
Trust Co1$6230.00%+1New
Atlantic Private Wealth, LLC1$6230.00%+1New
Bare Financial Services, Inc1$6230.00%+1New
Rakuten Securities, Inc.1$6230.00%+1New
IMG Wealth Management, Inc.1$6230.00%+1New
Murphy & Mullick Capital Management Corp1$6230.00%+1New
McGuire Capital Advisors Inc1$6230.00%+1New
Three Bearings Fiduciary Advisors, Inc.1$6520.00%+1New
E Fund Management (Hong Kong) Co., Ltd.1$6540.00%00.0%Unchanged
WPG Advisers, LLC2$1.25K0.00%−26−92.9%Reduced
Winnow Wealth LLC2$1.25K0.00%00.0%Unchanged
Delos Wealth Advisors, LLC2$1.25K0.00%00.0%Unchanged
HFM Investment Advisors, LLC2$1.25K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC2$1.25K0.00%+2New
Beaird Harris Wealth Management, LLC3$1.87K0.00%−1−25.0%Reduced
HHM Wealth Advisors, LLC3$1.87K0.00%00.0%Unchanged
TFC Financial Management3$1.87K0.00%00.0%Unchanged
Nemes Rush Group LLC3$1.87K0.00%00.0%Unchanged
JNBA Financial Advisors3$1.87K0.00%+3New
High Note Wealth, LLC3$1.87K0.00%+3New
Signature Resources Capital Management, LLC3$1.87K0.00%+3New
Harvest Fund Management Co., Ltd4$2.00K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC3$2.00K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC3$2.26K0.00%+1+50.0%Added
Rialto Wealth Management, LLC4$2.49K0.00%00.0%Unchanged
Heritage Wealth Advisors4$2.49K0.00%00.0%Unchanged
Rachor Investment Advisory Services, LLC4$2.49K0.00%+4New
TD Capital Management LLC4$2.52K0.00%00.0%Unchanged
Penserra Capital Management LLC6$3.00K0.00%00.0%Unchanged
First United Bank Trust5$3.11K0.00%00.0%Unchanged
Morse Asset Management, Inc5$3.11K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.5$3.11K0.00%+3+150.0%Added
Smallwood Wealth Investment Management, LLC5$3.11K0.00%+3+150.0%Added
American National Bank5$3.11K0.00%+5New
Bullseye Investment Management, LLC5$3.11K0.00%+5New
Wilkerson Advisory Group LLC5$3.11K0.00%+5New
Advocate Investing Services LLC5$3.11K0.00%+5New
Manchester Capital Management LLC6$3.74K0.00%−161−96.4%Reduced
Wealth Watch Advisors, INC6$3.74K0.00%−1−14.3%Reduced
Sunbelt Securities, Inc.6$3.74K0.00%00.0%Unchanged
MTM Investment Management, LLC6$3.74K0.00%00.0%Unchanged
Granite FO LLC6$3.74K0.00%00.0%Unchanged
MPWM Advisory Solutions, LLC6$3.74K0.00%00.0%Unchanged
Hughes Financial Services, LLC6$3.74K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.6$3.74K0.00%00.0%Unchanged
North Star Investment Management Corp.6$3.74K0.00%+6New
Fairman Group, LLC6$3.74K0.00%+6New
Strategic Wealth Advisors LLC7$4.00K0.00%+7New
Y.D. More Investments Ltd2,109$4.12K0.00%+2,109New
Bay Harbor Wealth Management, LLC7$4.36K0.00%+3+75.0%Added
Arlington Trust Co LLC7$4.36K0.00%−117−94.4%Reduced
C M Bidwell & Associates Ltd7$4.36K0.00%00.0%Unchanged
Tidemark, LLC7$4.36K0.00%00.0%Unchanged
Key Financial Inc7$4.36K0.00%00.0%Unchanged
Sound Income Strategies, LLC7$4.56K0.00%+6+600.0%Added
Dunhill Financial, LLC8$4.95K0.00%+1+14.3%Added
Creative Financial Designs Inc8$4.98K0.00%00.0%Unchanged
Mascoma Wealth Management LLC8$4.98K0.00%00.0%Unchanged
Bellevue Asset Management, LLC8$4.98K0.00%+1+14.3%Added
Dogwood Wealth Management LLC8$4.98K0.00%+4+100.0%Added
HighMark Wealth Management LLC9$5.60K0.00%00.0%Unchanged
Asset Planning,Inc9$5.60K0.00%00.0%Unchanged
Aspect Partners, LLC10$6.23K0.00%00.0%Unchanged
Mowery & Schoenfeld Wealth Management, LLC10$6.23K0.01%+3+42.9%Added
J.Safra Asset Management Corp10$6.23K0.00%+10New
Abound Wealth Management10$6.53K0.00%00.0%Unchanged
SOA Wealth Advisors, LLC.6,812$6.81K0.00%00.0%Unchanged
Grove Bank & Trust11$6.85K0.00%−8−42.1%Reduced
Bangor Savings Bank11$6.85K0.00%00.0%Unchanged
Cetera Trust Company, N.A11$6.85K0.00%00.0%Unchanged
Bell Investment Advisors, Inc11$6.85K0.00%−1−8.3%Reduced
Legacy Bridge, LLC11$6.85K0.00%+11New
Highline Wealth Partners LLC11$6.86K0.00%00.0%Unchanged
Ogorek Anthony Joseph12$7.00K0.00%+1+9.1%Added
Bayban12$7.47K0.01%+12New
Avion Wealth14$8.00K0.00%−1−6.7%Reduced
Howard Hughes Medical Institute13$8.10K0.00%00.0%Unchanged
Red Tortoise LLC13$8.10K0.00%00.0%Unchanged
Kilter Group LLC13$8.10K0.00%+2+18.2%Added
SHP Wealth Management13$8.27K0.00%+13New
Signature Equity Partners, LLC13$8.36K0.00%+13New
United Community Bank14$8.72K0.00%00.0%Unchanged
Rossby Financial, LCC14$8.72K0.00%00.0%Unchanged
Albion Financial Group14$8.72K0.00%00.0%Unchanged
Ritter Daniher Financial Advisory LLC14$8.72K0.00%00.0%Unchanged
Brown, Lisle/Cummings, Inc.14$8.96K0.00%00.0%Unchanged
Icon Advisers Inc15$9.34K0.00%00.0%Unchanged
Clark Wealth Partners15$9.34K0.01%00.0%Unchanged