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 |
|---|---|---|---|---|---|
| UniSuper Management Pty Ltd | 6,345 | $4.00M | 0.02% | +509+8.7% | Added |
| CWM, LLC | 6,305 | $3.97M | 0.01% | +2,575+69.0% | Added |
| Summit Place Financial Advisors, LLC | 6,280 | $3.96M | 1.87% | +45+0.7% | Added |
| Mill Capital Management, LLC | 6,225 | $3.92M | 0.29% | 00.0% | Unchanged |
| Concorde Financial Corp | 6,016 | $3.79M | 2.10% | −39−0.6% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 6,000 | $3.78M | 0.03% | 00.0% | Unchanged |
| Mackenzie Financial Corp | 5,956 | $3.75M | 0.00% | −2,670−31.0% | Reduced |
| Skylands Capital, LLC | 5,945 | $3.75M | 0.52% | −1,675−22.0% | Reduced |
| Public Employees Retirement Association of Colorado | 5,902 | $3.72M | 0.01% | −13−0.2% | Reduced |
| Amica Mutual Insurance Co | 5,837 | $3.68M | 0.34% | 00.0% | Unchanged |
| B & T Capital Management DBA Alpha Capital Management | 5,806 | $3.66M | 0.58% | +13+0.2% | Added |
| Hudson Bay Capital Management LP | 5,785 | $3.65M | 0.02% | +5,785 | New |
| Wealthfront Advisers LLC | 5,755 | $3.63M | 0.01% | +219+4.0% | Added |
| Gallo Partners, LP | 5,747 | $3.62M | 2.72% | +5,747 | New |
| Avanza Fonder AB | 5,731 | $3.61M | 0.09% | 00.0% | Unchanged |
| Diversified Trust Co | 5,728 | $3.61M | 0.07% | −984−14.7% | Reduced |
| Kestra Advisory Services, LLC | 5,684 | $3.58M | 0.02% | +191+3.5% | Added |
| SG Americas Securities, LLC | 5,588 | $3.52M | 0.01% | −4,463−44.4% | Reduced |
| Pacer Advisors, Inc. | 5,556 | $3.50M | 0.01% | +704+14.5% | Added |
| Bessemer Group Inc | 5,529 | $3.48M | 0.01% | +1,196+27.6% | Added |
| Quest Partners LLC | 5,518 | $3.48M | 0.23% | +5,514+137,850.0% | Added |
| NewEdge Wealth, LLC | 5,673 | $3.46M | 0.05% | +108+1.9% | Added |
| Tredje AP-fonden | 5,468 | $3.45M | 0.03% | +582+11.9% | Added |
| Adams Natural Resources Fund, Inc. | 5,400 | $3.40M | 0.52% | 00.0% | Unchanged |
| True North Advisors, LLC | 5,379 | $3.39M | 0.54% | +47+0.9% | Added |
| TD Waterhouse Canada Inc. | 5,445 | $3.38M | 0.02% | +80+1.5% | Added |
| Sanctuary Advisors, LLC | 5,308 | $3.35M | 0.02% | +378+7.7% | Added |
| Evelyn Partners Investment Management LLP | 5,285 | $3.33M | 0.09% | −13−0.2% | Reduced |
| Public Sector Pension Investment Board | 5,247 | $3.31M | 0.01% | +674+14.7% | Added |
| Brinker Capital Investments, LLC | 5,213 | $3.29M | 0.03% | +343+7.0% | Added |
| Rafferty Asset Management, LLC | 5,136 | $3.24M | 0.01% | +20+0.4% | Added |
| Rakuten Investment Management, Inc. | 18,024 | $3.23M | 0.01% | +18,024 | New |
| Gabelli Funds LLC | 5,000 | $3.15M | 0.02% | 00.0% | Unchanged |
| Bislett Management, LLC | 5,000 | $3.15M | 2.28% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 4,892 | $3.08M | 0.01% | +1,968+67.3% | Added |
| Colony Group, LLC | 4,790 | $3.02M | 0.00% | +240+5.3% | Added |
| Aviso Financial Inc. | 4,774 | $3.01M | 0.12% | +406+9.3% | Added |
| Montag A & Associates Inc | 4,733 | $2.98M | 0.14% | −30−0.6% | Reduced |
| Abc Arbitrage SA | 4,724 | $2.98M | 0.29% | +4,724 | New |
| Perigon Wealth Management, LLC | 4,695 | $2.96M | 0.06% | +1,201+34.4% | Added |
| Jackson Hole Capital Partners, LLC | 4,693 | $2.96M | 0.51% | −175−3.6% | Reduced |
| Candriam Luxembourg S.C.A. | 4,647 | $2.93M | 0.02% | +161+3.6% | Added |
| Westbourne Investments, Inc. | 4,775 | $2.93M | 1.40% | 00.0% | Unchanged |
| Sandler Capital Management | 4,644 | $2.93M | 1.08% | +4,644 | New |
| Bank Julius Baer & Co. Ltd, Zurich | 4,603 | $2.90M | 0.01% | −11,766−71.9% | Reduced |
| Huntleigh Advisors, Inc. | 4,584 | $2.89M | 0.49% | +203+4.6% | Added |
| Azzad Asset Management Inc | 4,556 | $2.87M | 0.28% | −694−13.2% | 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 |
| Gardner Lewis Asset Management L P | 4,407 | $2.78M | 0.73% | −54−1.2% | Reduced |
| Baird Financial Group, Inc. | 4,386 | $2.76M | 0.00% | −511−10.4% | Reduced |
| Mizuho Securities USA LLC | 4,392 | $2.71M | 0.05% | +218+5.2% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 4,163 | $2.62M | 0.01% | +3,382+433.0% | Added |
| Cultivar Capital, Inc. | 4,147 | $2.61M | 1.74% | −300−6.7% | Reduced |
| AXA Investment Managers S.A. | 4,101 | $2.58M | 0.01% | +4,101 | New |
| Envestnet Portfolio Solutions, Inc. | 4,093 | $2.58M | 0.01% | −55−1.3% | Reduced |
| Mattson Financial Services, LLC | 4,057 | $2.56M | 0.61% | +4,057 | New |
| GKV Capital Management Co., Inc. | 4,046 | $2.55M | 1.01% | +60+1.5% | Added |
| Delta Global Management LP | 4,042 | $2.55M | 0.19% | −409−9.2% | Reduced |
| Lipe & Dalton | 4,013 | $2.53M | 1.25% | 00.0% | Unchanged |
| One Madison Group LLC | 4,000 | $2.52M | 0.28% | +4,000 | New |
| Oddo BHF Asset Management SAS | 3,912 | $2.47M | 0.09% | −3,649−48.3% | Reduced |
| Clearstead Advisors, LLC | 3,904 | $2.46M | 0.04% | −3,776−49.2% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 3,875 | $2.44M | 0.02% | +577+17.5% | Added |
| Investment Management Corp of Ontario | 3,873 | $2.44M | 0.04% | +1,304+50.8% | Added |
| NEOS Investment Management LLC | 3,862 | $2.43M | 0.02% | +1,188+44.4% | Added |
| MML Investors Services, LLC | 3,826 | $2.41M | 0.01% | −170−4.3% | Reduced |
| Atlantic Union Bankshares Corp | 3,817 | $2.41M | 0.05% | +2,912+321.8% | Added |
| Numerai GP LLC | 3,792 | $2.39M | 0.34% | −1,281−25.3% | Reduced |
| Kentucky Retirement Systems | 3,765 | $2.37M | 0.07% | −163−4.1% | Reduced |
| Weaver Capital Management LLC | 3,750 | $2.36M | 0.52% | −372−9.0% | Reduced |
| Pinnacle Associates Ltd | 3,737 | $2.36M | 0.03% | +10.0% | Added |
| Sterling Capital Management LLC | 3,732 | $2.35M | 0.03% | −273−6.8% | Reduced |
| Raiffeisen Bank International AG | 3,712 | $2.31M | 0.03% | +981+35.9% | Added |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 3,562 | $2.25M | 0.90% | −295−7.6% | Reduced |
| Hudson Canyon Capital Management | 3,603 | $2.23M | 1.28% | −117−3.1% | Reduced |
| Hartford Investment Management Co | 3,517 | $2.22M | 0.07% | −107−3.0% | Reduced |
| Generali Asset Management SPA SGR | 3,429 | $2.16M | 0.05% | −73−2.1% | Reduced |
| First Financial Bankshares Inc | 3,414 | $2.15M | 0.04% | +3,414 | New |
| Simon Quick Advisors, LLC | 3,379 | $2.13M | 0.10% | +3+0.1% | Added |
| GWM Advisors LLC | 3,374 | $2.13M | 0.01% | +1,062+45.9% | Added |
| Regions Financial Corp | 3,329 | $2.10M | 0.01% | −144−4.1% | Reduced |
| RD Lewis Holdings, Inc. | 3,389 | $2.08M | 1.95% | +75+2.3% | Added |
| Brown Brothers Harriman & Co | 3,301 | $2.08M | 0.01% | +575+21.1% | Added |
| Jane Street Group, LLC | 3,290 | $2.07M | 0.00% | −13,039−79.9% | Reduced |
| Lederer & Associates Investment Counsel | 3,273 | $2.06M | 1.34% | −254−7.2% | Reduced |
| RSM US Wealth Management LLC | 3,259 | $2.05M | 0.03% | +156+5.0% | Added |
| Norinchukin Bank, The | 3,250 | $2.05M | 0.03% | +21+0.7% | Added |
| WSFS Capital Management, LLC | 3,248 | $2.05M | 0.10% | −13−0.4% | Reduced |
| Campbell & CO Investment Adviser LLC | 3,231 | $2.04M | 0.15% | +3,231 | New |
| Arkadios Wealth Advisors | 3,220 | $2.03M | 0.05% | +1,264+64.6% | Added |
| Omers Administration Corp | 3,209 | $2.02M | 0.01% | +1,000+45.3% | Added |
| Louisiana State Employees Retirement System | 3,200 | $2.02M | 0.03% | 00.0% | Unchanged |
| Huntington National Bank | 3,193 | $2.01M | 0.01% | −239−7.0% | Reduced |
| Argent Trust Co | 3,169 | $2.00M | 0.07% | −121−3.7% | Reduced |
| Hantz Financial Services, Inc. | 3,159 | $1.99M | 0.03% | −481−13.2% | Reduced |
| Harfst & Associates, Inc. | 3,133 | $1.97M | 0.36% | +37+1.2% | Added |
| Coldstream Capital Management Inc | 3,101 | $1.95M | 0.03% | +764+32.7% | Added |
| Nomura Holdings Inc | 3,092 | $1.95M | 0.01% | +3,092 | New |
| Kovack Advisors, Inc. | 3,078 | $1.94M | 0.18% | +148+5.1% | Added |