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 |
|---|---|---|---|---|---|
| Oppenheimer & Co Inc | 27,881 | $17.6M | 0.21% | +411+1.5% | Added |
| Adage Capital Partners GP, L.L.C. | 27,987 | $17.6M | 0.03% | +27,987 | New |
| Arrowstreet Capital, Limited Partnership | 28,749 | $18.1M | 0.01% | −14,621−33.7% | Reduced |
| Captrust Financial Advisors | 29,042 | $18.3M | 0.04% | −1,772−5.8% | Reduced |
| NorthCrest Asset Manangement, LLC | 29,418 | $18.5M | 0.44% | +347+1.2% | Added |
| Pelham Capital Ltd. | 30,052 | $18.9M | 9.86% | +10,917+57.1% | Added |
| Concentric Capital Strategies, LP | 30,147 | $19.0M | 0.91% | +28,941+2,399.8% | Added |
| Assenagon Asset Management S.A. | 30,533 | $19.2M | 0.03% | +5,797+23.4% | Added |
| Peapack Gladstone Financial Corp | 31,059 | $19.6M | 0.25% | −246−0.8% | Reduced |
| Lathrop Investment Management Corp | 31,247 | $19.7M | 3.63% | −1,016−3.1% | Reduced |
| Rather & Kittrell, Inc. | 31,543 | $19.9M | 3.48% | +130.0% | Added |
| State of Wisconsin Investment Board | 31,748 | $20.0M | 0.05% | −686−2.1% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 31,975 | $20.2M | 0.06% | −1,065−3.2% | Reduced |
| Asset Management One Co.,Ltd. | 32,233 | $20.3M | 0.06% | +237+0.7% | Added |
| Quantinno Capital Management LP | 32,340 | $20.4M | 0.06% | +9,960+44.5% | Added |
| Mariner, LLC | 33,435 | $21.1M | 0.03% | +1,827+5.8% | Added |
| Manufacturers Life Insurance Company, The | 33,518 | $21.1M | 0.02% | +2,061+6.6% | Added |
| Bank of Montreal | 33,900 | $21.4M | 0.01% | +6,259+22.6% | Added |
| CIBC Bancorp USA Inc. | 33,923 | $21.4M | 0.13% | +33,923 | New |
| Handelsbanken Fonder AB | 34,431 | $21.7M | 0.07% | +255+0.7% | Added |
| National Bank of Canada | 34,497 | $21.7M | 0.02% | −7,664−18.2% | Reduced |
| First Manhattan Co | 35,724 | $22.5M | 0.06% | −169−0.5% | Reduced |
| GW&K Investment Management, LLC | 36,620 | $23.1M | 0.20% | −1,471−3.9% | Reduced |
| Pictet Asset Management Holding SA | 37,344 | $23.5M | 0.02% | +1,445+4.0% | Added |
| Franklin Street Advisors Inc | 38,292 | $24.1M | 1.39% | +408+1.1% | Added |
| Waratah Capital Advisors Ltd. | 38,681 | $24.4M | 1.66% | −5,336−12.1% | Reduced |
| Great West Life Assurance Co | 39,920 | $24.8M | 0.04% | +2,477+6.6% | Added |
| Gradient Investments LLC | 40,306 | $25.4M | 0.42% | +40,306 | New |
| Credit Agricole S A | 40,531 | $25.5M | 0.08% | +40,531 | New |
| Korea Investment CORP | 40,924 | $25.8M | 0.05% | +1,048+2.6% | Added |
| New York State Teachers Retirement System | 41,228 | $26.0M | 0.05% | −130.0% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 41,275 | $26.0M | 1.41% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 41,432 | $26.1M | 0.02% | +109+0.3% | Added |
| Douglas Lane & Associates, LLC | 42,703 | $26.9M | 0.38% | +1,145+2.8% | Added |
| STRS Ohio | 46,134 | $29.1M | 0.11% | −4,045−8.1% | Reduced |
| Stephens Inc | 46,176 | $29.1M | 0.37% | −2,201−4.5% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 47,030 | $29.6M | 0.47% | +6,988+17.5% | Added |
| FIL Ltd | 47,332 | $29.8M | 0.02% | −195−0.4% | Reduced |
| Ofi Invest Asset Management | 55,757 | $29.9M | 0.63% | +1,622+3.0% | Added |
| Aviva PLC | 47,967 | $30.2M | 0.05% | +2,492+5.5% | Added |
| Kornitzer Capital Management Inc | 48,068 | $30.3M | 0.61% | −385−0.8% | Reduced |
| Canada Pension Plan Investment Board | 48,414 | $30.5M | 0.02% | +23,961+98.0% | Added |
| Balyasny Asset Management LLC | 48,419 | $30.5M | 0.06% | +48,419 | New |
| LPL Financial LLC | 49,846 | $31.4M | 0.01% | +6,271+14.4% | Added |
| Stifel Financial Corp | 50,280 | $31.7M | 0.03% | −617−1.2% | Reduced |
| Harvey Partners, LLC | 51,100 | $32.2M | 2.93% | +3,170+6.6% | Added |
| Lazard Freres Gestion S.A.S. | 53,190 | $33.5M | 0.64% | +3,804+7.7% | Added |
| Tran Capital Management, L.P. | 53,534 | $33.7M | 4.03% | −4,775−8.2% | Reduced |
| Gateway Investment Advisers LLC | 53,586 | $33.8M | 0.33% | +73+0.1% | Added |
| Janus Henderson Group PLC | 56,100 | $35.4M | 0.02% | −699−1.2% | Reduced |
| State Board of Administration of Florida Retirement System | 57,530 | $36.3M | 0.06% | −4,014−6.5% | Reduced |
| KBC Group NV | 58,498 | $36.9M | 0.09% | +7,689+15.1% | Added |
| HighTower Advisors, LLC | 59,391 | $37.4M | 0.04% | +1,108+1.9% | Added |
| M&G Plc | 60,657 | $38.2M | 0.20% | −3,049−4.8% | Reduced |
| Confluence Investment Management LLC | 61,391 | $38.7M | 0.55% | −1,067−1.7% | Reduced |
| Heritage Investors Management Corp | 64,326 | $40.5M | 1.21% | −1,320−2.0% | Reduced |
| Advisor Group Holdings, Inc. | 64,407 | $40.5M | 0.06% | +56,448+709.2% | Added |
| Man Group plc | 68,135 | $42.9M | 0.08% | +21,760+46.9% | Added |
| Atika Capital Management LLC | 68,483 | $43.2M | 3.68% | −4,050−5.6% | Reduced |
| Fisher Funds Management LTD | 68,811 | $43.4M | 1.15% | +18,915+37.9% | Added |
| California State Teachers Retirement System | 72,550 | $45.7M | 0.05% | −308−0.4% | Reduced |
| Prudential Financial Inc | 72,893 | $45.9M | 0.05% | +31,294+75.2% | Added |
| CI Private Wealth, LLC | 73,706 | $46.5M | 0.07% | +2,296+3.2% | Added |
| Alliancebernstein L.P. | 74,715 | $47.1M | 0.01% | +7,277+10.8% | Added |
| Gilder Gagnon Howe & Co LLC | 78,446 | $49.4M | 0.50% | −1,129−1.4% | Reduced |
| Nitorum Capital, L.P. | 79,535 | $50.1M | 8.81% | −11,256−12.4% | Reduced |
| Border to Coast Pensions Partnership Ltd | 80,587 | $50.8M | 0.88% | +3,721+4.8% | Added |
| National Pension Service | 84,820 | $53.5M | 0.04% | +843+1.0% | Added |
| Russell Investments Group, Ltd. | 85,879 | $54.1M | 0.06% | +1,236+1.5% | Added |
| Price T Rowe Associates Inc | 88,761 | $55.9M | 0.01% | −25,766−22.5% | Reduced |
| Fenimore Asset Management Inc | 89,657 | $56.5M | 1.13% | +807+0.9% | Added |
| AQR Capital Management LLC | 90,248 | $56.7M | 0.04% | +23,646+35.5% | Added |
| Glenmede Investment Management, LP | 90,925 | $57.3M | 0.28% | −526−0.6% | Reduced |
| Federated Hermes, Inc. | 94,470 | $59.5M | 0.11% | +3,732+4.1% | Added |
| Camrose Capital Investment Partners LLP | 95,619 | $60.3M | 13.99% | +9,514+11.0% | Added |
| TimesSquare Capital Management, LLC | 95,704 | $60.3M | 0.86% | −11,741−10.9% | Reduced |
| M.D. Sass Investors Services, Inc. | 97,235 | $61.3M | 5.00% | −25,797−21.0% | Reduced |
| Two Sigma Investments, LP | 98,156 | $61.9M | 0.09% | −119,186−54.8% | Reduced |
| California Public Employees Retirement System | 100,431 | $63.3M | 0.04% | +24,730+32.7% | Added |
| Natixis Advisors, L.P. | 101,440 | $63.9M | 0.09% | +639+0.6% | Added |
| TD Asset Management Inc | 103,199 | $65.0M | 0.05% | −8,469−7.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 105,237 | $66.3M | 0.15% | −17,715−14.4% | Reduced |
| Millennium Management LLC | 108,167 | $68.2M | 0.05% | +98,024+966.4% | Added |
| RDST Capital LLC | 111,575 | $70.3M | 6.62% | +6,035+5.7% | Added |
| Progeny 3, Inc. | 113,150 | $71.3M | 3.68% | 00.0% | Unchanged |
| Rhumbline Advisers | 114,534 | $72.2M | 0.06% | −290−0.3% | Reduced |
| BNP Paribas Arbitrage, SA | 117,872 | $74.3M | 0.06% | +69,016+141.3% | Added |
| American Century Companies Inc | 118,697 | $74.8M | 0.04% | −28,169−19.2% | Reduced |
| Steginsky Capital LLC | 119,653 | $75.4M | 13.85% | +891+0.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 121,297 | $76.5M | 0.06% | +6,209+5.4% | Added |
| HSBC Holdings PLC | 122,263 | $76.9M | 0.05% | −691−0.6% | Reduced |
| Freestone Grove Partners LP | 124,963 | $78.8M | 0.59% | +110,236+748.5% | Added |
| Citigroup Inc | 125,119 | $78.9M | 0.05% | +31,463+33.6% | Added |
| Silvercrest Asset Management Group LLC | 130,247 | $82.1M | 0.54% | −5,837−4.3% | Reduced |
| Ameriprise Financial Inc | 132,110 | $83.3M | 0.02% | −2,792−2.1% | Reduced |
| Amundi | 134,546 | $85.6M | 0.03% | +18,782+16.2% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 140,623 | $88.6M | 0.05% | +1,432+1.0% | Added |
| Barclays PLC | 151,907 | $95.7M | 0.04% | −46,727−23.5% | Reduced |
| Nuveen, LLC | 152,075 | $95.8M | 0.03% | −7,885−4.9% | Reduced |
| Wells Fargo & Company | 157,421 | $99.2M | 0.02% | +13,404+9.3% | Added |