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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
Virtu Financial LLC550$346.0K0.02%+550New
Northwestern Mutual Wealth Management Co539$339.8K0.00%−1,401−72.2%Reduced
PDS Planning, Inc539$339.7K0.02%+2+0.4%Added
one8zero8, LLC536$337.8K0.07%00.0%Unchanged
Shufro Rose & Co LLC700$334.7K0.03%00.0%Unchanged
Cresta Advisors, Ltd.529$333.4K0.15%00.0%Unchanged
Verus Capital Partners, LLC525$330.9K0.03%−5−0.9%Reduced
Dana Investment Advisors, Inc.519$327.1K0.01%−450−46.4%Reduced
Ariston Services Group516$325.2K0.20%00.0%Unchanged
N.E.W. Advisory Services LLC516$325.2K0.03%00.0%Unchanged
Prime Capital Investment Advisors, LLC516$325.0K0.00%+22+4.5%Added
First Citizens Bank & Trust Co513$323.3K0.01%−506−49.7%Reduced
LexAurum Advisors, LLC512$322.6K0.05%−88−14.7%Reduced
Sivia Capital Partners, LLC511$322.1K0.09%+1+0.2%Added
A4 Wealth Advisors LLC511$322.1K0.27%+511New
Amica Retiree Medical Trust506$319.0K0.44%00.0%Unchanged
Larson Financial Group LLC503$317.2K0.01%+67+15.4%Added
Adviser Investments LLC501$315.8K0.00%+42+9.2%Added
Mariner Investment Group LLC500$315.1K0.10%00.0%Unchanged
First Interstate Bank500$315.1K0.02%00.0%Unchanged
Monetary Management Group Inc500$315.1K0.07%00.0%Unchanged
City State Bank497$313.2K0.09%00.0%Unchanged
CWM Advisors, LLC495$312.0K0.03%−19−3.7%Reduced
Ironwood Investment Counsel, LLC494$311.4K0.05%−7−1.4%Reduced
St. Nicholas Private Asset Management, Inc494$311.4K0.27%00.0%Unchanged
BIP Wealth, LLC494$311.1K0.02%+58+13.3%Added
Citizens Business Bank493$310.7K0.05%+493New
Collective Family Office LLC488$307.6K0.07%−53−9.8%Reduced
Mutual Advisors, LLC489$302.9K0.01%+489New
Dynamic Advisor Solutions LLC480$302.5K0.01%+4+0.8%Added
Blue Door Asset Management, LLC480$302.5K0.17%+480New
Krilogy Financial LLC494$301.6K0.01%+494New
Ostrum Asset Management478$301.3K0.01%−13−2.6%Reduced
Taylor Financial Group, Inc.475$299.4K0.17%00.0%Unchanged
Colonial River Wealth Management, LLC474$298.8K0.11%−362−43.3%Reduced
Ameritas Advisory Services, LLC474$298.8K0.02%+114+31.7%Added
Pekin Hardy Strauss, Inc.473$298.1K0.03%−17−3.5%Reduced
Wealthspire Advisors, LLC469$295.6K0.00%−145−23.6%Reduced
One Wealth Capital Management, LLC469$295.6K0.13%+29+6.6%Added
AMG National Trust Bank469$295.5K0.01%+3+0.6%Added
waypoint wealth counsel463$291.8K0.12%+8+1.8%Added
Heritage Trust Co462$291.2K0.03%00.0%Unchanged
Allianz SE460$289.9K0.01%00.0%Unchanged
Gries Financial LLC458$288.7K0.05%+46+11.2%Added
Sunbeam Capital Management, LLC457$288.1K0.18%00.0%Unchanged
Helen Stephens Group, LLC454$286.0K0.06%−53−10.5%Reduced
Formidable Asset Management, LLC515$282.8K0.04%00.0%Unchanged
Daymark Wealth Partners, LLC448$282.5K0.01%+17+3.9%Added
Fulton Bank, N.A.443$279.2K0.01%+13+3.0%Added
Hollow Brook Wealth Management LLC439$277.1K0.07%+439New
Banco Santander, S.A.439$276.7K0.00%−205−31.8%Reduced
Equitable Holdings, Inc.439$276.7K0.00%+50+12.9%Added
Patton Fund Management, Inc.436$274.8K0.05%00.0%Unchanged
Anchor Investment Management, LLC435$274.2K0.02%+25+6.1%Added
Campion Asset Management LLC435$274.2K0.19%00.0%Unchanged
Patrick M Sweeney & Associates, Inc430$271.0K0.18%00.0%Unchanged
Select Asset Management & Trust430$271.0K0.08%00.0%Unchanged
Drive Wealth Management, LLC429$270.2K0.06%+9+2.1%Added
Thomasville National Bank428$269.8K0.02%+428New
Brighton Jones LLC428$269.5K0.01%+428New
Western Wealth Management, LLC427$269.4K0.01%+21+5.2%Added
Geneos Wealth Management Inc.426$268.5K0.01%−41−8.8%Reduced
Johnson Investment Counsel Inc424$267.2K0.00%+3+0.7%Added
Tred Avon Family Wealth, LLC424$267.2K0.09%+424New
Flputnam Investment Management Co421$265.3K0.00%−50−10.6%Reduced
Mather Group, LLC.421$265.3K0.00%+6+1.4%Added
Howard Capital Management Inc.419$264.1K0.00%+8+1.9%Added
Breakwater Capital Group418$263.5K0.04%00.0%Unchanged
Claret Asset Management Corp417$263.0K0.03%−6−1.4%Reduced
Cypress Wealth Services, LLC417$262.9K0.04%00.0%Unchanged
Icon Wealth Advisors, LLC417$262.8K0.02%00.0%Unchanged
First Citizens Financial Corp417$262.8K0.13%+417New
Retirement Planning Group417$262.6K0.01%+417New
GTS Securities LLC414$260.9K0.01%−1,262−75.3%Reduced
Heartwood Wealth Advisors LLC413$260.3K0.02%00.0%Unchanged
Ashton Thomas Private Wealth, LLC408$257.2K0.01%+408New
Insigneo Advisory Services, LLC408$257.0K0.02%+14+3.6%Added
Cresset Asset Management, LLC407$256.6K0.00%+30+8.0%Added
Alta Advisers Ltd406$255.9K0.08%00.0%Unchanged
Modera Wealth Management, LLC403$254.0K0.00%+2+0.5%Added
Portside Wealth Group, LLC402$253.4K0.04%+20+5.2%Added
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
Walleye Capital LLC399$251.5K0.00%−17,201−97.7%Reduced
Canvas Wealth Advisors, LLC394$250.2K0.05%+1+0.3%Added
Central Bank & Trust Co395$249.0K0.04%00.0%Unchanged
Phoenix Holdings Ltd.395$249.0K0.00%+395New
IHT Wealth Management, LLC395$248.9K0.01%+9+2.3%Added
Parcion Private Wealth LLC393$247.7K0.02%+393New
Triad Wealth Partners, LLC390$245.8K0.03%+4+1.0%Added
Thompson Siegel & Walmsley LLC385$243.0K0.00%00.0%Unchanged
National Asset Management, Inc.384$242.1K0.01%+384New
Rodgers & Associates, LTD384$242.0K0.02%−50−11.5%Reduced
Pinnacle Financial Partners Inc384$242.0K0.01%−178−31.7%Reduced
Fisher Asset Management, LLC383$241.9K0.00%+383New
EverSource Wealth Advisors, LLC381$240.3K0.01%+121+46.5%Added
Signet Financial Management, LLC376$237.0K0.03%00.0%Unchanged
Hemington Wealth Management375$236.0K0.03%+25+7.1%Added