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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
Financial Network Wealth Advisors LLC22$13.9K0.02%00.0%Unchanged
Strengthening Families & Communities, LLC23$14.7K0.00%+23New
AdvisorNet Financial, Inc24$15.1K0.00%−3−11.1%Reduced
Sachetta, LLC24$15.1K0.01%00.0%Unchanged
DAGCO, Inc.24$15.1K0.00%00.0%Unchanged
FWL Investment Management, LLC24$15.1K0.00%+24New
Archer Investment Corp24$15.3K0.00%00.0%Unchanged
Gables Capital Management Inc.25$15.8K0.01%00.0%Unchanged
Atlantic Edge Private Wealth Management, LLC25$15.8K0.00%00.0%Unchanged
JPL Wealth Management, LLC25$15.8K0.00%+25New
Solstein Capital, LLC26$16.4K0.01%00.0%Unchanged
WPG Advisers, LLC28$17.6K0.01%+9+47.4%Added
Hollencrest Capital Management29$18.3K0.00%00.0%Unchanged
Richardson Capital Management LLC30$18.9K0.01%00.0%Unchanged
Kings Path Partners LLC30$18.9K0.01%00.0%Unchanged
Evolution Wealth Management Inc.31$19.5K0.02%00.0%Unchanged
ORG Partners LLC31$19.5K0.00%+5+19.2%Added
Covestor Ltd32$20.0K0.01%−102−76.1%Reduced
CNB Bank33$20.8K0.01%00.0%Unchanged
Chesapeake Asset Management LLC35$22.1K0.02%00.0%Unchanged
Bryn Mawr Trust Co35$22.1K0.00%−323−90.2%Reduced
Westside Investment Management, Inc.36$22.3K0.00%+18+100.0%Added
SBI Securities Co., Ltd.36$22.7K0.00%−11−23.4%Reduced
Rise Advisors, LLC37$23.5K0.01%+1+2.8%Added
Golden State Wealth Management, LLC38$24.0K0.00%00.0%Unchanged
Armstrong Advisory Group, Inc39$24.6K0.00%00.0%Unchanged
Oakworth Capital, Inc.40$25.2K0.00%00.0%Unchanged
Quent Capital, LLC41$25.9K0.00%+41New
Park Place Capital Corp42$26.5K0.01%00.0%Unchanged
Farmers & Merchants Investments Inc43$27.1K0.00%00.0%Unchanged
Deseret Mutual Benefit Administrators43$27.1K0.01%00.0%Unchanged
Private Wealth Asset Management, LLC43$27.1K0.00%00.0%Unchanged
Kerr Financial Planning Corp46$27.4K0.04%+46New
South State Corp.45$28.4K0.00%−9−16.7%Reduced
Salomon & Ludwin, LLC48$30.5K0.00%−29−37.7%Reduced
Redmont Wealth Advisors LLC50$31.5K0.04%00.0%Unchanged
Curat Global, LLC50$31.5K0.03%00.0%Unchanged
Atwood & Palmer Inc51$32.1K0.00%00.0%Unchanged
Harbour Investments, Inc.51$32.4K0.00%+2+4.1%Added
Clal Insurance Enterprises Holdings Ltd52$33.0K0.00%−1−1.9%Reduced
Grey Fox Wealth Advisors, LLC53$33.3K0.01%+53New
Retirement Wealth Solutions LLC53$33.7K0.02%−4−7.0%Reduced
CBIZ Investment Advisory Services, LLC55$34.7K0.00%−1−1.8%Reduced
Hopwood Financial Services, Inc.60$37.8K0.03%−10−14.3%Reduced
Quarry LP60$37.8K0.01%+60New
GPS Wealth Strategies Group, LLC61$38.4K0.00%−13−17.6%Reduced
Harel Insurance Investments & Financial Services Ltd.62$39.0K0.00%+62New
Atlantic Trust, LLC62$39.1K0.01%00.0%Unchanged
Tortoise Investment Management, LLC63$39.7K0.00%+2+3.3%Added
Stephenson National Bank & Trust64$40.3K0.01%+64New
Ameliora Wealth Management Ltd.66$41.6K0.01%+66New
Zions Bancorporation, National Association67$42.2K0.00%+5+8.1%Added
Pathway Financial Advisers, LLC68$42.4K0.01%+68New
Osterweis Capital Management Inc68$42.9K0.00%00.0%Unchanged
Raffa Wealth Management, LLC71$44.8K0.01%−49−40.8%Reduced
Cornerstone Planning Group LLC73$44.8K0.01%+45+160.7%Added
Towarzystwo Funduszy Inwestycyjnych Pzu SA75$47.3K0.01%00.0%Unchanged
MV Capital Management, Inc.78$49.2K0.00%00.0%Unchanged
AXS Investments LLC81$51.1K0.02%+81New
Estabrook Capital Management82$51.7K0.01%00.0%Unchanged
Midwest Capital Advisors, LLC82$51.7K0.02%00.0%Unchanged
IMA Wealth, Inc.85$53.6K0.01%00.0%Unchanged
Tobam86$54.0K0.02%+14+19.4%Added
Pin Oak Investment Advisors Inc87$54.8K0.04%−14−13.9%Reduced
Bogart Wealth, LLC87$54.8K0.00%+2+2.4%Added
Root Financial Partners, LLC88$55.5K0.00%+88New
Pension & Wealth Management Advisors, Inc.90$57.2K0.02%−51−36.2%Reduced
Versant Capital Management, Inc92$58.0K0.01%+14+17.9%Added
RMG Wealth Management LLC98$62.1K0.01%00.0%Unchanged
Concord Wealth Partners100$63.0K0.01%−68−40.5%Reduced
Pinnacle Bancorp, Inc.103$64.9K0.02%00.0%Unchanged
Fortitude Family Office, LLC103$64.9K0.02%+1+1.0%Added
Clear Street Markets LLC103$64.9K0.02%+63+157.5%Added
Johnson Financial Group, Inc.103$64.9K0.00%+88+586.7%Added
Caldwell Trust Co105$66.2K0.01%00.0%Unchanged
Thurston, Springer, Miller, Herd & Titak, Inc.106$66.8K0.13%−1,437−93.1%Reduced
Cromwell Holdings LLC110$69.3K0.04%00.0%Unchanged
ZRC Wealth Management, LLC113$71.2K0.03%+3+2.7%Added
Caitong International Asset Management Co., Ltd115$72.5K0.05%+115New
Harbor Investment Advisory, LLC118$74.4K0.01%00.0%Unchanged
Cary Street Partners Financial LLC123$77.5K0.00%+123New
Arlington Trust Co LLC124$78.2K0.01%−20−13.9%Reduced
Eastern Bank124$78.2K0.00%00.0%Unchanged
Birchbrook, Inc.126$79.4K0.04%00.0%Unchanged
CVA Family Office, LLC126$79.4K0.01%+1+0.8%Added
NBC Securities, Inc.127$80.0K0.01%−10−7.3%Reduced
Consultiva Wealth Management, Corp.130$81.9K0.23%00.0%Unchanged
Roxbury Financial LLC132$82.9K0.08%+1+0.8%Added
Sentry Investment Management LLC132$84.0K0.06%−46−25.8%Reduced
Valley National Advisers Inc135$84.0K0.01%+13+10.7%Added
Clayton Financial Group LLC136$85.7K0.06%+136New
Western Pacific Wealth Management, LP143$90.1K0.09%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC144$90.8K0.02%+2+1.4%Added
Glen Eagle Advisors, LLC150$94.5K0.01%00.0%Unchanged
Essential Partners LLC154$97.1K0.03%+115+294.9%Added
Westpac Banking Corp158$99.6K0.01%00.0%Unchanged
Rothschild Investment LLC161$101.5K0.01%+69+75.0%Added
Manchester Capital Management LLC167$105.3K0.01%−330−66.4%Reduced
Onefund, LLC171$107.8K0.07%+9+5.6%Added
Smithfield Trust Co175$110.0K0.00%00.0%Unchanged