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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
PEAK6 LLC175$110.2K0.00%+116+196.6%Added
North Ridge Wealth Advisors, Inc.188$118.5K0.07%00.0%Unchanged
Parkside Financial Bank & Trust194$122.3K0.01%+13+7.2%Added
Rowland & Co Investment Counsel200$126.1K0.02%00.0%Unchanged
Global Retirement Partners, LLC204$128.7K0.00%−108−34.6%Reduced
Ronald Blue Trust, Inc.226$142.2K0.00%+43+23.5%Added
Cary Street Partner Investment Advisory LLC229$144.3K0.06%+229New
Colonial Trust Co233$146.9K0.02%00.0%Unchanged
TCTC Holdings, LLC260$163.9K0.00%00.0%Unchanged
Hilltop National Bank265$167.0K0.04%00.0%Unchanged
Group One Trading, L.P.268$168.9K0.01%−100−27.2%Reduced
First Horizon Corp291$183.4K0.01%+291New
Central Trust Co291$183.4K0.00%+73+33.5%Added
Strategic Wealth Partners, Ltd.300$189.1K0.01%−1,774−85.5%Reduced
JFS Wealth Advisors, LLC304$191.6K0.01%+275+948.3%Added
True Wealth Design, LLC308$194.1K0.06%+1+0.3%Added
FourThought Financial Partners, LLC318$200.2K0.02%+318New
Old National Bancorp319$201.1K0.00%+319New
Woodard & Co Asset Management Group Inc320$201.7K0.03%+320New
West Family Investments, Inc.321$202.3K0.05%+321New
Pinnacle Wealth Planning Services, Inc.323$203.6K0.02%+323New
EWG Elevate Inc.323$203.6K0.06%+323New
Welch & Forbes LLC324$204.2K0.00%+324New
Longboard Asset Management, LP327$206.1K0.33%+327New
Shelton Capital Management331$208.6K0.00%+331New
Pavion Blue Capital, LLC334$210.5K0.09%+334New
Silver Oak Securities, Inc334$210.6K0.02%+334New
Heartland Bank & Trust Co337$212.4K0.09%+337New
Private Trust Co NA339$213.7K0.02%+32+10.4%Added
Accel Wealth Management340$214.4K0.06%−100−22.7%Reduced
Trust Point Inc.342$215.6K0.02%+342New
LRI Investments, LLC344$216.7K0.02%+5+1.5%Added
Childress Capital Advisors, LLC346$218.1K0.04%+346New
KPP Advisory Services LLC348$219.3K0.03%+348New
Fortress Wealth Group, LLC358$220.6K0.10%+358New
Penobscot Investment Management Company, Inc.350$220.6K0.02%+350New
Independent Solutions Wealth Management, LLC350$220.6K0.04%+350New
Oakwell Private Wealth Management, LLC350$220.6K0.04%+350New
One Wealth Advisors, LLC352$221.9K0.03%+352New
Tiaa Trust, National Association352$221.9K0.00%+352New
NFP Retirement, Inc.354$223.1K0.01%+354New
We Are One Seven, LLC354$223.2K0.01%+354New
Pitcairn Co355$223.7K0.02%−101−22.1%Reduced
SPC Financial, Inc.356$224.4K0.02%+356New
Catalyst Financial Partners LLC357$225.0K0.03%+357New
Traynor Capital Management, Inc.358$225.6K0.01%+358New
Boston Trust Walden Corp363$228.8K0.00%+363New
Livforsakringsbolaget Skandia, Omsesidigt368$231.8K0.01%00.0%Unchanged
SCS Capital Management LLC368$231.9K0.00%+368New
Rehmann Capital Advisory Group368$232.2K0.01%−30−7.5%Reduced
One Capital Management, LLC372$234.5K0.01%−5−1.3%Reduced
Atom Investors LP373$235.1K0.02%+373New
Crestwood Advisors Group LLC374$235.7K0.00%+374New
Hemington Wealth Management375$236.0K0.03%+25+7.1%Added
Signet Financial Management, LLC376$237.0K0.03%00.0%Unchanged
EverSource Wealth Advisors, LLC381$240.3K0.01%+121+46.5%Added
Fisher Asset Management, LLC383$241.9K0.00%+383New
Pinnacle Financial Partners Inc384$242.0K0.01%−178−31.7%Reduced
Rodgers & Associates, LTD384$242.0K0.02%−50−11.5%Reduced
National Asset Management, Inc.384$242.1K0.01%+384New
Thompson Siegel & Walmsley LLC385$243.0K0.00%00.0%Unchanged
Triad Wealth Partners, LLC390$245.8K0.03%+4+1.0%Added
Parcion Private Wealth LLC393$247.7K0.02%+393New
IHT Wealth Management, LLC395$248.9K0.01%+9+2.3%Added
Central Bank & Trust Co395$249.0K0.04%00.0%Unchanged
Phoenix Holdings Ltd.395$249.0K0.00%+395New
Canvas Wealth Advisors, LLC394$250.2K0.05%+1+0.3%Added
Walleye Capital LLC399$251.5K0.00%−17,201−97.7%Reduced
Palisade Capital Management LLC400$252.1K0.01%00.0%Unchanged
Marco Investment Management LLC400$252.1K0.02%00.0%Unchanged
Charter Research & Investment Group, Inc.400$252.1K0.17%00.0%Unchanged
Delta Investment Management, LLC400$252.1K0.05%00.0%Unchanged
Portside Wealth Group, LLC402$253.4K0.04%+20+5.2%Added
Modera Wealth Management, LLC403$254.0K0.00%+2+0.5%Added
Alta Advisers Ltd406$255.9K0.08%00.0%Unchanged
Cresset Asset Management, LLC407$256.6K0.00%+30+8.0%Added
Insigneo Advisory Services, LLC408$257.0K0.02%+14+3.6%Added
Ashton Thomas Private Wealth, LLC408$257.2K0.01%+408New
Heartwood Wealth Advisors LLC413$260.3K0.02%00.0%Unchanged
GTS Securities LLC414$260.9K0.01%−1,262−75.3%Reduced
Retirement Planning Group417$262.6K0.01%+417New
Icon Wealth Advisors, LLC417$262.8K0.02%00.0%Unchanged
First Citizens Financial Corp417$262.8K0.13%+417New
Cypress Wealth Services, LLC417$262.9K0.04%00.0%Unchanged
Claret Asset Management Corp417$263.0K0.03%−6−1.4%Reduced
Breakwater Capital Group418$263.5K0.04%00.0%Unchanged
Howard Capital Management Inc.419$264.1K0.00%+8+1.9%Added
Flputnam Investment Management Co421$265.3K0.00%−50−10.6%Reduced
Mather Group, LLC.421$265.3K0.00%+6+1.4%Added
Johnson Investment Counsel Inc424$267.2K0.00%+3+0.7%Added
Tred Avon Family Wealth, LLC424$267.2K0.09%+424New
Geneos Wealth Management Inc.426$268.5K0.01%−41−8.8%Reduced
Western Wealth Management, LLC427$269.4K0.01%+21+5.2%Added
Brighton Jones LLC428$269.5K0.01%+428New
Thomasville National Bank428$269.8K0.02%+428New
Drive Wealth Management, LLC429$270.2K0.06%+9+2.1%Added
Select Asset Management & Trust430$271.0K0.08%00.0%Unchanged
Patrick M Sweeney & Associates, Inc430$271.0K0.18%00.0%Unchanged
Campion Asset Management LLC435$274.2K0.19%00.0%Unchanged
Anchor Investment Management, LLC435$274.2K0.02%+25+6.1%Added