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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,079 | $34.2B |
| Q1 2026 | 1,077 | $34.3B |
| Q4 2025 | 1,117 | $37.1B |
| Q3 2025 | 1,053 | $36.7B |
| Q2 2025 | 999 | $32.8B |
| Q1 2025 | 953 | $28.5B |
| Q4 2024 | 992 | $30.5B |
| Q3 2024 | 948 | $32.4B |
| Q2 2024 | 940 | $32.3B |
| Q1 2024 | 957 | $36.4B |
| Q4 2023 | 889 | $29.3B |
| Q3 2023 | 815 | $24.1B |
| Q2 2023 | 804 | $27.0B |
| Q1 2023 | 746 | $20.7B |
| Q4 2022 | 768 | $19.7B |
| Q3 2022 | 736 | $18.8B |
| Q2 2022 | 728 | $17.5B |
| Q1 2022 | 763 | $22.7B |
| Q4 2021 | 775 | $25.6B |
| Q3 2021 | 700 | $19.7B |
| Q2 2021 | 696 | $20.3B |
| Q1 2021 | 692 | $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.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Connor, Clark & Lunn Investment Management Ltd. | 4,163 | $2.62M | 0.01% | +3,382+433.0% | Added |
| Mizuho Securities USA LLC | 4,392 | $2.71M | 0.05% | +218+5.2% | Added |
| Baird Financial Group, Inc. | 4,386 | $2.76M | 0.00% | −511−10.4% | Reduced |
| Gardner Lewis Asset Management L P | 4,407 | $2.78M | 0.73% | −54−1.2% | Reduced |
| Harbor Advisors LLC | 4,500 | $2.84M | 0.44% | 00.0% | Unchanged |
| Dai-Ichi Life Insurance Company, Ltd | 4,500 | $2.84M | 0.07% | +113+2.6% | Added |
| Azzad Asset Management Inc | 4,556 | $2.87M | 0.28% | −694−13.2% | Reduced |
| Huntleigh Advisors, Inc. | 4,584 | $2.89M | 0.49% | +203+4.6% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 4,603 | $2.90M | 0.01% | −11,766−71.9% | Reduced |
| Sandler Capital Management | 4,644 | $2.93M | 1.08% | +4,644 | New |
| Westbourne Investments, Inc. | 4,775 | $2.93M | 1.40% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 4,647 | $2.93M | 0.02% | +161+3.6% | Added |
| Jackson Hole Capital Partners, LLC | 4,693 | $2.96M | 0.51% | −175−3.6% | Reduced |
| Perigon Wealth Management, LLC | 4,695 | $2.96M | 0.06% | +1,201+34.4% | Added |
| Abc Arbitrage SA | 4,724 | $2.98M | 0.29% | +4,724 | New |
| Montag A & Associates Inc | 4,733 | $2.98M | 0.14% | −30−0.6% | Reduced |
| Aviso Financial Inc. | 4,774 | $3.01M | 0.12% | +406+9.3% | Added |
| Colony Group, LLC | 4,790 | $3.02M | 0.00% | +240+5.3% | Added |
| Mercer Global Advisors Inc | 4,892 | $3.08M | 0.01% | +1,968+67.3% | Added |
| Gabelli Funds LLC | 5,000 | $3.15M | 0.02% | 00.0% | Unchanged |
| Bislett Management, LLC | 5,000 | $3.15M | 2.28% | 00.0% | Unchanged |
| Rakuten Investment Management, Inc. | 18,024 | $3.23M | 0.01% | +18,024 | New |
| Rafferty Asset Management, LLC | 5,136 | $3.24M | 0.01% | +20+0.4% | Added |
| Brinker Capital Investments, LLC | 5,213 | $3.29M | 0.03% | +343+7.0% | Added |
| Public Sector Pension Investment Board | 5,247 | $3.31M | 0.01% | +674+14.7% | Added |
| Evelyn Partners Investment Management LLP | 5,285 | $3.33M | 0.09% | −13−0.2% | Reduced |
| Sanctuary Advisors, LLC | 5,308 | $3.35M | 0.02% | +378+7.7% | Added |
| TD Waterhouse Canada Inc. | 5,445 | $3.38M | 0.02% | +80+1.5% | Added |
| True North Advisors, LLC | 5,379 | $3.39M | 0.54% | +47+0.9% | Added |
| Adams Natural Resources Fund, Inc. | 5,400 | $3.40M | 0.52% | 00.0% | Unchanged |
| Tredje AP-fonden | 5,468 | $3.45M | 0.03% | +582+11.9% | Added |
| NewEdge Wealth, LLC | 5,673 | $3.46M | 0.05% | +108+1.9% | Added |
| Quest Partners LLC | 5,518 | $3.48M | 0.23% | +5,514+137,850.0% | Added |
| Bessemer Group Inc | 5,529 | $3.48M | 0.01% | +1,196+27.6% | Added |
| Pacer Advisors, Inc. | 5,556 | $3.50M | 0.01% | +704+14.5% | Added |
| SG Americas Securities, LLC | 5,588 | $3.52M | 0.01% | −4,463−44.4% | Reduced |
| Kestra Advisory Services, LLC | 5,684 | $3.58M | 0.02% | +191+3.5% | Added |
| Diversified Trust Co | 5,728 | $3.61M | 0.07% | −984−14.7% | Reduced |
| Avanza Fonder AB | 5,731 | $3.61M | 0.09% | 00.0% | Unchanged |
| Gallo Partners, LP | 5,747 | $3.62M | 2.72% | +5,747 | New |
| Wealthfront Advisers LLC | 5,755 | $3.63M | 0.01% | +219+4.0% | Added |
| Hudson Bay Capital Management LP | 5,785 | $3.65M | 0.02% | +5,785 | New |
| B & T Capital Management DBA Alpha Capital Management | 5,806 | $3.66M | 0.58% | +13+0.2% | Added |
| Amica Mutual Insurance Co | 5,837 | $3.68M | 0.34% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 5,902 | $3.72M | 0.01% | −13−0.2% | Reduced |
| Skylands Capital, LLC | 5,945 | $3.75M | 0.52% | −1,675−22.0% | Reduced |
| Mackenzie Financial Corp | 5,956 | $3.75M | 0.00% | −2,670−31.0% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 6,000 | $3.78M | 0.03% | 00.0% | Unchanged |
| Concorde Financial Corp | 6,016 | $3.79M | 2.10% | −39−0.6% | Reduced |
| Mill Capital Management, LLC | 6,225 | $3.92M | 0.29% | 00.0% | Unchanged |
| Summit Place Financial Advisors, LLC | 6,280 | $3.96M | 1.87% | +45+0.7% | Added |
| CWM, LLC | 6,305 | $3.97M | 0.01% | +2,575+69.0% | Added |
| UniSuper Management Pty Ltd | 6,345 | $4.00M | 0.02% | +509+8.7% | Added |
| Mediolanum International Funds Ltd | 6,488 | $4.03M | 0.04% | +91+1.4% | Added |
| State of Alaska, Department of Revenue | 6,450 | $4.07M | 0.04% | −314−4.6% | Reduced |
| DoubleLine ETF Adviser LP | 6,512 | $4.10M | 1.24% | +247+3.9% | Added |
| Mutual of America Capital Management LLC | 6,536 | $4.12M | 0.04% | −377−5.5% | Reduced |
| Red Spruce Capital, LLC | 6,609 | $4.17M | 1.70% | −61−0.9% | Reduced |
| OP Asset Management Ltd | 6,763 | $4.26M | 0.06% | +300+4.6% | Added |
| Whittier Trust Co of Nevada Inc | 6,759 | $4.29M | 0.09% | +295+4.6% | Added |
| Yousif Capital Management, LLC | 6,810 | $4.29M | 0.05% | −425−5.9% | Reduced |
| Transamerica Financial Advisors, Inc. | 6,815 | $4.30M | 0.36% | −109−1.6% | Reduced |
| Oregon Public Employees Retirement Fund | 6,897 | $4.35M | 0.06% | +1,661+31.7% | Added |
| Southeast Asset Advisors Inc. | 7,032 | $4.43M | 0.48% | −340−4.6% | Reduced |
| ARS Investment Partners, LLC | 7,079 | $4.46M | 0.29% | −96−1.3% | Reduced |
| Toroso Investments, LLC | 7,101 | $4.48M | 0.02% | +2,243+46.2% | Added |
| Symmetry Investments LP | 7,103 | $4.48M | 0.36% | +7,103 | New |
| Apella Capital, LLC | 7,241 | $4.52M | 0.10% | −5−0.1% | Reduced |
| Schroder Investment Management Group | 7,339 | $4.63M | 0.00% | +724+10.9% | Added |
| Bank of Nova Scotia | 7,422 | $4.68M | 0.01% | −12,509−62.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 7,457 | $4.69M | 0.01% | +646+9.5% | Added |
| Vestmark Advisory Solutions, Inc. | 7,496 | $4.72M | 0.09% | −1,021−12.0% | Reduced |
| Brown Advisory Inc | 7,548 | $4.76M | 0.01% | +254+3.5% | Added |
| Nissay Asset Management Corp | 7,574 | $4.77M | 0.03% | −10−0.1% | Reduced |
| Atria Investments LLC | 7,593 | $4.79M | 0.05% | −877−10.4% | Reduced |
| SailingStone Capital Partners LLC | 7,620 | $4.80M | 1.26% | 00.0% | Unchanged |
| Canal Capital Management, LLC | 7,722 | $4.87M | 0.73% | +63+0.8% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 7,809 | $4.92M | 0.04% | +94+1.2% | Added |
| Ethic Inc. | 7,855 | $4.95M | 0.08% | +235+3.1% | Added |
| Teacher Retirement System of Texas | 7,898 | $4.98M | 0.02% | −1,362−14.7% | Reduced |
| JustInvest LLC | 7,916 | $5.00M | 0.05% | +736+10.3% | Added |
| HB Wealth Management, LLC | 8,008 | $5.05M | 0.03% | +3,522+78.5% | Added |
| Jain Global LLC | 8,077 | $5.09M | 0.07% | +8,077 | New |
| Xponance, Inc. | 8,125 | $5.12M | 0.04% | −557−6.4% | Reduced |
| SummitTX Capital, L.P. | 8,174 | $5.15M | 0.21% | +8,174 | New |
| Alerus Financial NA | 8,226 | $5.18M | 0.26% | +77+0.9% | Added |
| Salem Investment Counselors Inc | 8,343 | $5.26M | 0.15% | −5−0.1% | Reduced |
| Fifth Third Bancorp | 8,454 | $5.33M | 0.02% | +366+4.5% | Added |
| Lountzis Asset Management, LLC | 8,471 | $5.34M | 1.74% | −31−0.4% | Reduced |
| Swiss Life Asset Management Ltd | 8,518 | $5.37M | 0.03% | +634+8.0% | Added |
| Cambridge Investment Research Advisors, Inc. | 8,646 | $5.45M | 0.01% | +127+1.5% | Added |
| British Columbia Investment Management Corp | 8,665 | $5.46M | 0.03% | −931−9.7% | Reduced |
| New York Life Investment Management LLC | 8,802 | $5.55M | 0.05% | −240−2.7% | Reduced |
| UBS Oconnor LLC | 9,100 | $5.74M | 0.17% | +9,100 | New |
| Nisa Investment Advisors, LLC | 9,163 | $5.78M | 0.02% | +40+0.4% | Added |
| Graham Capital Management, L.P. | 9,200 | $5.80M | 0.21% | +1,200+15.0% | Added |
| Janney Montgomery Scott LLC | 9,297 | $5.86M | 0.01% | −279−2.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 9,348 | $5.89M | 0.02% | +388+4.3% | Added |
| Commonwealth Equity Services, LLC | 9,502 | $5.99M | 0.01% | −1,176−11.0% | Reduced |
| Nordea Investment Management AB | 9,692 | $6.07M | 0.01% | −3,034−23.8% | Reduced |