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Livermore
ZHEN

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
Sound Income Strategies, LLC13$7.79K0.00%+6+85.7%Added
Signature Equity Partners, LLC13$7.91K0.00%00.0%Unchanged
Abound Wealth Management13$7.92K0.00%+3+30.0%Added
Albion Financial Group14$8.24K0.00%00.0%Unchanged
Ritter Daniher Financial Advisory LLC14$8.24K0.00%00.0%Unchanged
United Community Bank14$8.24K0.00%00.0%Unchanged
Rossby Financial, LCC14$8.38K0.00%00.0%Unchanged
Cornerstone Financial Management LLC15$8.83K0.01%−1−6.3%Reduced
Avion Wealth16$9.00K0.00%+2+14.3%Added
Truvestments Capital LLC16$9.42K0.00%00.0%Unchanged
Activest Wealth Management16$9.42K0.00%00.0%Unchanged
Boreal Capital Management LLC16$9.42K0.01%00.0%Unchanged
Wilkerson Advisory Group LLC16$9.42K0.00%+11+220.0%Added
Covestor Ltd17$10.0K0.01%−15−46.9%Reduced
Bruce G. Allen Investments, LLC17$10.0K0.01%00.0%Unchanged
Kings Path Partners LLC18$10.6K0.00%−12−40.0%Reduced
Bayforest Capital Ltd18$10.6K0.01%+18New
Armstrong Advisory Group, Inc20$11.8K0.00%−11−35.5%Reduced
Sittner & Nelson, LLC20$11.8K0.00%00.0%Unchanged
Chelsea Counsel Co20$11.8K0.01%00.0%Unchanged
Orion Capital Management LLC20$11.8K0.00%00.0%Unchanged
Delta Asset Management LLC21$12.4K0.00%00.0%Unchanged
Timothy G. Youngquist 2020 Irrevocable Trust21$12.4K0.01%+21New
Steigerwald, Gordon & Koch Inc.22$13.0K0.00%−11−33.3%Reduced
Financial Network Wealth Advisors LLC22$13.0K0.01%00.0%Unchanged
AdvisorNet Financial, Inc23$13.5K0.00%00.0%Unchanged
Kemnay Advisory Services Inc.23$13.5K0.00%00.0%Unchanged
Private Wealth Management Group, LLC23$13.5K0.00%+5+27.8%Added
DAGCO, Inc.24$14.1K0.00%00.0%Unchanged
Miller Global Investments, LLC24$14.1K0.01%00.0%Unchanged
Sachetta, LLC24$14.1K0.01%00.0%Unchanged
Archer Investment Corp24$14.3K0.00%00.0%Unchanged
SHP Wealth Management24$14.3K0.00%+11+84.6%Added
Gables Capital Management Inc.25$14.7K0.01%00.0%Unchanged
Atlantic Edge Private Wealth Management, LLC25$14.7K0.00%00.0%Unchanged
RWM Asset Management, LLC25$14.7K0.00%+25New
Solstein Capital, LLC26$15.3K0.01%00.0%Unchanged
Virginia Estate & Retirement Planning Advisors Inc.26$15.3K0.07%+26New
JPL Wealth Management, LLC27$15.9K0.00%+27New
Prestige Wealth Management Group LLC27$15.9K0.00%−867−97.0%Reduced
Hollencrest Capital Management29$17.1K0.00%00.0%Unchanged
Salomon & Ludwin, LLC29$17.3K0.00%−19−39.6%Reduced
Quarry LP30$17.7K0.00%+30New
CNB Bank33$19.4K0.01%00.0%Unchanged
Clal Insurance Enterprises Holdings Ltd34$20.0K0.00%−9−20.9%Reduced
SBI Securities Co., Ltd.34$20.0K0.00%00.0%Unchanged
Whipplewood Advisors, LLC34$20.0K0.01%+34New
New Age Alpha Advisors, LLC35$20.6K0.00%+2+6.1%Added
Wall Street Financial Group, Inc.36$21.2K0.01%+36New
Quent Capital, LLC36$21.2K0.00%−19−34.5%Reduced
Bryn Mawr Trust Co38$22.4K0.00%−23−37.7%Reduced
Golden State Wealth Management, LLC38$22.4K0.00%00.0%Unchanged
Evolution Wealth Management Inc.40$23.5K0.02%+9+29.0%Added
Oakworth Capital, Inc.40$23.5K0.00%00.0%Unchanged
Westside Investment Management, Inc.41$24.4K0.00%00.0%Unchanged
Kerr Financial Planning Corp41$24.5K0.03%+1+2.5%Added
Farmers & Merchants Investments Inc43$25.3K0.00%00.0%Unchanged
Park Place Capital Corp44$25.9K0.01%+1+2.3%Added
South State Corp.45$26.5K0.00%−1−2.2%Reduced
Atlantic Trust, LLC45$26.5K0.00%00.0%Unchanged
Essential Partners LLC46$27.1K0.01%−136−74.7%Reduced
Retirement Wealth Solutions LLC46$27.3K0.02%−7−13.2%Reduced
Meeder Asset Management Inc47$27.7K0.00%+19+67.9%Added
Richardson Capital Management LLC48$28.3K0.01%+18+60.0%Added
HM Payson & Co51$29.9K0.00%+51New
Atwood & Palmer Inc51$30.0K0.00%00.0%Unchanged
JFS Wealth Advisors, LLC53$31.2K0.00%−2−3.6%Reduced
Zions Bancorporation, National Association54$31.8K0.00%−238−81.5%Reduced
Twin Peaks Wealth Advisors, LLC54$32.0K0.01%+54New
AXS Investments LLC55$32.4K0.01%−24−30.4%Reduced
Union Bancaire Privee, UBP SA57$32.7K0.00%00.0%Unchanged
Peterson Wealth Management62$36.2K0.02%+62New
Cornerstone Planning Group LLC63$37.6K0.01%+12+23.5%Added
Ameliora Wealth Management Ltd.66$38.9K0.01%00.0%Unchanged
Osterweis Capital Management Inc68$40.0K0.00%00.0%Unchanged
Beacon Investment Advisory Services, Inc.68$40.0K0.00%+68New
SJS Investment Consulting Inc.72$42.4K0.01%+49+213.0%Added
Owl Creek Wealth Partners LLC72$42.4K0.02%+72New
Harel Insurance Investments & Financial Services Ltd.73$43.0K0.00%+7+10.6%Added
Raffa Wealth Management, LLC75$44.2K0.01%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA75$44.2K0.01%00.0%Unchanged
MV Capital Management, Inc.77$45.3K0.00%−2−2.5%Reduced
Brown, Lisle/Cummings, Inc.77$45.6K0.01%+63+450.0%Added
Keating Financial Advisory Services, Inc.79$46.5K0.01%−2−2.5%Reduced
Estabrook Capital Management82$48.3K0.01%00.0%Unchanged
Midwest Capital Advisors, LLC82$48.4K0.02%00.0%Unchanged
International Assets Investment Management, LLC81$48.5K0.00%00.0%Unchanged
1015 Capital Partners, LLC83$48.9K0.05%00.0%Unchanged
Pin Oak Investment Advisors Inc84$49.0K0.03%−3−3.4%Reduced
IMA Wealth, Inc.85$50.0K0.00%00.0%Unchanged
Deseret Mutual Benefit Administrators86$50.6K0.02%+43+100.0%Added
Basecamp Wealth Advisors LLC87$51.2K0.01%−2−2.2%Reduced
Root Financial Partners, LLC92$54.2K0.00%−10−9.8%Reduced
Prosperity Bancshares Inc92$54.2K0.04%+18+24.3%Added
Opal Wealth Advisors, LLC97$57.1K0.01%+97New
Bogart Wealth, LLC98$57.7K0.00%+12+14.0%Added
Rothschild Investment LLC100$59.0K0.00%−24−19.4%Reduced
Pinnacle Bancorp, Inc.103$60.6K0.02%00.0%Unchanged
Caldwell Trust Co105$61.8K0.01%00.0%Unchanged
RMG Wealth Management LLC106$62.1K0.01%+8+8.2%Added