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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
Osbon Capital Management LLC136$84.7K0.08%+136New
Roxbury Financial LLC132$82.0K0.07%00.0%Unchanged
Sentry Investment Management LLC132$82.0K0.05%00.0%Unchanged
Eastern Bank130$80.9K0.00%+6+4.8%Added
Consultiva Wealth Management, Corp.130$80.9K0.23%00.0%Unchanged
NBC Securities, Inc.126$78.5K0.01%−1−0.8%Reduced
Birchbrook, Inc.126$78.4K0.04%00.0%Unchanged
CVA Family Office, LLC125$77.8K0.01%−1−0.8%Reduced
Rothschild Investment LLC124$77.4K0.00%−37−23.0%Reduced
Cary Street Partners Financial LLC123$76.6K0.00%00.0%Unchanged
Strive Financial Group ,LLC121$75.3K0.04%+121New
Torren Management, LLC116$72.3K0.04%+116New
ORG Partners LLC116$72.2K0.01%+85+274.2%Added
Pension & Wealth Management Advisors, Inc.114$71.3K0.02%+24+26.7%Added
ZRC Wealth Management, LLC113$70.4K0.02%00.0%Unchanged
Cromwell Holdings LLC110$68.5K0.04%00.0%Unchanged
Caldwell Trust Co105$65.4K0.01%00.0%Unchanged
Fortitude Family Office, LLC104$64.8K0.02%+1+1.0%Added
Pinnacle Bancorp, Inc.103$64.1K0.02%00.0%Unchanged
Versant Capital Management, Inc102$63.5K0.01%+10+10.9%Added
Root Financial Partners, LLC102$63.5K0.00%+14+15.9%Added
RMG Wealth Management LLC98$63.2K0.01%00.0%Unchanged
Concord Wealth Partners100$62.3K0.01%00.0%Unchanged
Pin Oak Investment Advisors Inc87$60.0K0.04%00.0%Unchanged
Basecamp Wealth Advisors LLC89$55.7K0.01%+89New
Clear Street Markets LLC89$55.4K0.01%−14−13.6%Reduced
Greenline Wealth Management LLC88$54.9K0.06%+88New
Bogart Wealth, LLC86$53.5K0.00%−1−1.1%Reduced
IMA Wealth, Inc.85$52.9K0.01%00.0%Unchanged
DV Equities, LLC85$52.9K0.01%+85New
1015 Capital Partners, LLC83$51.7K0.05%+83New
Midwest Capital Advisors, LLC82$51.2K0.02%00.0%Unchanged
Estabrook Capital Management82$51.1K0.01%00.0%Unchanged
International Assets Investment Management, LLC81$50.4K0.00%+81New
Keating Financial Advisory Services, Inc.81$50.4K0.01%+81New
MV Capital Management, Inc.79$49.2K0.00%+1+1.3%Added
AXS Investments LLC79$49.2K0.02%−2−2.5%Reduced
First Command Advisory Services, Inc.76$47.3K0.00%+56+280.0%Added
Towarzystwo Funduszy Inwestycyjnych Pzu SA75$46.7K0.01%00.0%Unchanged
Raffa Wealth Management, LLC75$46.7K0.01%+4+5.6%Added
Prosperity Bancshares Inc74$46.1K0.04%+74New
Stephenson National Bank & Trust72$44.8K0.01%+8+12.5%Added
Osterweis Capital Management Inc68$42.3K0.00%00.0%Unchanged
Harbour Investments, Inc.67$42.0K0.00%+16+31.4%Added
Fideuram Asset Management (Ireland) dac74$41.9K0.00%+74New
Ameliora Wealth Management Ltd.66$41.1K0.01%00.0%Unchanged
Harel Insurance Investments & Financial Services Ltd.66$41.0K0.00%+4+6.5%Added
SageView Advisory Group, LLC62$38.6K0.00%+62New
Bryn Mawr Trust Co61$38.0K0.00%+26+74.3%Added
Union Bancaire Privee, UBP SA57$36.0K0.00%+57New
Reflection Asset Management57$35.5K0.03%+57New
Quent Capital, LLC55$34.3K0.00%+14+34.1%Added
CBIZ Investment Advisory Services, LLC55$34.3K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC55$34.2K0.00%−249−81.9%Reduced
Retirement Wealth Solutions LLC53$33.3K0.02%00.0%Unchanged
Cornerstone Planning Group LLC51$33.2K0.01%−22−30.1%Reduced
Atwood & Palmer Inc51$31.8K0.00%00.0%Unchanged
Garton & Associates Financial Advisors LLC50$31.4K0.02%+50New
Redmont Wealth Advisors LLC50$31.1K0.05%00.0%Unchanged
Curat Global, LLC50$31.1K0.03%00.0%Unchanged
Salomon & Ludwin, LLC48$30.8K0.00%00.0%Unchanged
Wealth Enhancement Trust Services, Inc.49$30.5K0.00%+49New
South State Corp.46$28.6K0.00%+1+2.2%Added
Atlantic Trust, LLC45$28.0K0.00%−17−27.4%Reduced
Clal Insurance Enterprises Holdings Ltd43$27.0K0.00%−9−17.3%Reduced
Kerr Financial Planning Corp40$26.9K0.04%−6−13.0%Reduced
Farmers & Merchants Investments Inc43$26.8K0.00%00.0%Unchanged
Deseret Mutual Benefit Administrators43$26.8K0.01%00.0%Unchanged
Park Place Capital Corp43$26.8K0.01%+1+2.4%Added
Westside Investment Management, Inc.41$26.0K0.00%+5+13.9%Added
Oakworth Capital, Inc.40$24.9K0.00%00.0%Unchanged
Optima Capital LLC40$24.9K0.01%+40New
Commonwealth Retirement Investments LLC39$24.3K0.01%+39New
Golden State Wealth Management, LLC38$23.7K0.00%00.0%Unchanged
SBI Securities Co., Ltd.34$21.2K0.00%−2−5.6%Reduced
CNB Bank33$20.5K0.01%00.0%Unchanged
Steigerwald, Gordon & Koch Inc.33$20.5K0.00%+19+135.7%Added
New Age Alpha Advisors, LLC33$20.5K0.00%+33New
Covestor Ltd32$20.0K0.01%00.0%Unchanged
Armstrong Advisory Group, Inc31$19.3K0.00%−8−20.5%Reduced
Trust Co of Vermont31$19.3K0.00%+10+47.6%Added
Evolution Wealth Management Inc.31$19.3K0.02%00.0%Unchanged
Richardson Capital Management LLC30$18.7K0.01%00.0%Unchanged
Kings Path Partners LLC30$18.7K0.01%00.0%Unchanged
Garner Asset Management Corp30$18.7K0.01%+30New
Hollencrest Capital Management29$18.1K0.00%00.0%Unchanged
Meeder Asset Management Inc28$17.4K0.00%+28New
Barnes Dennig Private Wealth Management LLC28$17.4K0.02%+28New
Solstein Capital, LLC26$16.2K0.01%00.0%Unchanged
Gables Capital Management Inc.25$15.6K0.01%00.0%Unchanged
Atlantic Edge Private Wealth Management, LLC25$15.6K0.00%00.0%Unchanged
Archer Investment Corp24$15.1K0.00%00.0%Unchanged
DAGCO, Inc.24$14.9K0.00%00.0%Unchanged
Sachetta, LLC24$14.9K0.01%00.0%Unchanged
Miller Global Investments, LLC24$14.9K0.01%+24New
SJS Investment Consulting Inc.23$14.3K0.00%+20+666.7%Added
AdvisorNet Financial, Inc23$14.3K0.00%−1−4.2%Reduced
Kemnay Advisory Services Inc.23$14.3K0.00%+23New
Sittner & Nelson, LLC20$13.8K0.00%00.0%Unchanged
Financial Network Wealth Advisors LLC22$13.7K0.01%00.0%Unchanged