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, Q2 2026
Institutional positions in Martin Marietta Materials Inc as of Jun 30, 2026. 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
- 1,079
- +13 vs. Q1 2026
- Shares held
- 59.3M
- +826.6K (+1.4%) vs. Q1 2026
- Total value
- $34.2B
- −$182.7M (−0.5%) vs. Q1 2026
- New holders
- 110
- 364 more added
- Sold out
- 97
- 395 more reduced
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $34.4B |
| Q4 2025 | 1,118 | $37.7B |
| Q3 2025 | 1,053 | $38.5B |
| Q2 2025 | 999 | $32.9B |
| Q1 2025 | 953 | $28.5B |
| Q4 2024 | 992 | $30.5B |
| Q3 2024 | 948 | $33.8B |
| Q2 2024 | 940 | $33.4B |
| Q1 2024 | 957 | $38.7B |
| Q4 2023 | 889 | $30.7B |
| Q3 2023 | 815 | $24.2B |
| Q2 2023 | 804 | $27.5B |
| Q1 2023 | 746 | $21.3B |
| Q4 2022 | 768 | $19.7B |
| Q3 2022 | 736 | $18.9B |
| Q2 2022 | 728 | $17.5B |
| Q1 2022 | 763 | $22.8B |
| Q4 2021 | 775 | $25.7B |
| Q3 2021 | 700 | $19.7B |
| Q2 2021 | 696 | $20.3B |
| Q1 2021 | 692 | $19.5B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,692,446 | $2.71B | 0.04% | +6,689+0.1% | Added |
| Vanguard Capital Management LLC | 3,929,705 | $2.27B | 0.05% | +12,322+0.3% | Added |
| Vanguard Portfolio Management LLC | 3,197,395 | $1.84B | 0.08% | +36,951+1.2% | Added |
| State Street Corp | 3,159,639 | $1.82B | 0.05% | +282,071+9.8% | Added |
| Bank of America Corp | 2,446,762 | $1.41B | 0.09% | +46,983+2.0% | Added |
| FMR LLC | 2,192,603 | $1.26B | 0.05% | −415,376−15.9% | Reduced |
| Principal Financial Group Inc | 2,116,369 | $1.22B | 0.60% | +22,427+1.1% | Added |
| Aristotle Capital Management, LLC | 1,831,597 | $1.06B | 2.22% | −123,503−6.3% | Reduced |
| Victory Capital Management Inc | 1,783,432 | $1.03B | 0.58% | +146,285+8.9% | Added |
| Price T Rowe Associates Inc | 1,599,324 | $922.3M | 0.09% | +110,484+7.4% | Added |
| Geode Capital Management, LLC | 1,601,490 | $919.9M | 0.05% | +12,556+0.8% | Added |
| JPMorgan Chase & Co | 1,466,887 | $852.6M | 0.05% | −393,339−21.1% | Reduced |
| TCI Fund Management LtdSuperinvestorTCI Fund Management | 1,315,109 | $758.4M | 1.44% | +1,315,109 | New |
| Goldman Sachs Group Inc | 1,163,330 | $670.9M | 0.07% | +277,475+31.3% | Added |
| Morgan Stanley | 1,012,016 | $583.6M | 0.03% | −329,585−24.6% | Reduced |
| Select Equity Group, L.P. | 1,011,255 | $583.2M | 3.09% | −22,165−2.1% | Reduced |
| Baillie Gifford & Co | 991,786 | $572.0M | 0.52% | −95,594−8.8% | Reduced |
| Gardner Russo & Quinn LLCSuperinvestorGardner Russo & Quinn | 705,367 | $406.8M | 4.56% | −10,044−1.4% | Reduced |
| King Luther Capital Management Corp | 653,184 | $376.7M | 1.54% | −13,538−2.0% | Reduced |
| Invesco Ltd. | 649,575 | $374.6M | 0.03% | −41,338−6.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 641,321 | $369.9M | 0.24% | −311,080−32.7% | Reduced |
| Alkeon Capital Management LLC | 627,351 | $361.8M | 1.40% | −120,000−16.1% | Reduced |
| Dimensional Fund Advisors LP | 586,145 | $338.1M | 0.06% | +39,975+7.3% | Added |
| Northern Trust Corp | 570,346 | $328.9M | 0.04% | −16,155−2.8% | Reduced |
| Norges Bank | 557,143 | $321.3M | 0.03% | +557,143 | New |
| Charles Schwab Investment Management Inc | 492,536 | $284.0M | 0.04% | +32,017+7.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 486,058 | $280.3M | 0.33% | +38,010+8.5% | Added |
| Franklin Resources Inc | 459,327 | $264.9M | 0.06% | −68,872−13.0% | Reduced |
| CIBC Bancorp USA Inc. | 390,665 | $225.5M | 0.28% | −83,878−17.7% | Reduced |
| UBS Group AG | 390,429 | $225.2M | 0.04% | +36,261+10.2% | Added |
| UBS Asset Management Americas Inc | 386,046 | $222.6M | 0.04% | +46,228+13.6% | Added |
| Bank of New York Mellon Corp | 345,624 | $199.3M | 0.03% | −25,334−6.8% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 345,060 | $199.0M | 0.57% | +22,203+6.9% | Added |
| Davenport & Co LLC | 336,791 | $194.7M | 0.99% | −5,372−1.6% | Reduced |
| Vanguard Fiduciary Trust Co | 337,299 | $194.5M | 0.04% | −1,990−0.6% | Reduced |
| Wells Fargo & Company | 278,806 | $160.8M | 0.03% | +12,196+4.6% | Added |
| Amundi | 263,497 | $152.0M | 0.04% | −620−0.2% | Reduced |
| Skye Global Management LP | 252,000 | $145.3M | 2.83% | −16,000−6.0% | Reduced |
| Legal & General Group Plc | 249,518 | $143.9M | 0.03% | −17,020−6.4% | Reduced |
| Mawer Investment Management Ltd. | 241,545 | $139.3M | 0.95% | −14,133−5.5% | Reduced |
| Hawk Ridge Capital Management LP | 238,655 | $137.6M | 4.41% | +78,120+48.7% | Added |
| Great Lakes Advisors, LLC | 226,586 | $130.7M | 0.99% | +9,380+4.3% | Added |
| Deutsche Bank AG | 225,927 | $130.3M | 0.04% | −9,483−4.0% | Reduced |
| Raymond James Financial Inc | 222,584 | $128.4M | 0.03% | −16,067−6.7% | Reduced |
| Douglass Winthrop Advisors, LLC | 217,073 | $125.2M | 2.16% | −2,000−0.9% | Reduced |
| 59 North Capital Management, LP | 214,146 | $123.5M | 2.75% | +214,146 | New |
| Diamond Hill Capital Management Inc | 213,905 | $123.4M | 0.99% | −75,245−26.0% | Reduced |
| Findlay Park Partners LLP | 207,262 | $119.5M | 1.61% | +12,960+6.7% | Added |
| Clearbridge Investments, LLC | 190,867 | $110.1M | 0.09% | −23,805−11.1% | Reduced |
| London Co of Virginia | 187,051 | $107.9M | 0.62% | −2,572−1.4% | Reduced |
| William Blair Investment Management, LLC | 181,902 | $104.9M | 0.32% | −90,490−33.2% | Reduced |
| DekaBank Deutsche Girozentrale | 177,524 | $102.2M | 0.17% | 00.0% | Unchanged |
| Nuveen, LLC | 173,430 | $100.0M | 0.02% | +4,135+2.4% | Added |
| Swiss National Bank | 169,950 | $98.0M | 0.05% | −7,080−4.0% | Reduced |
| RDST Capital LLC | 163,550 | $94.3M | 7.81% | +68,455+72.0% | Added |
| Rathbone Brothers plc | 160,365 | $92.5M | 0.34% | −165,617−50.8% | Reduced |
| Royal Bank of Canada | 157,881 | $91.0M | 0.02% | −159−0.1% | Reduced |
| Nomura Asset Management International Inc. | 157,083 | $90.6M | 0.14% | +3,906+2.5% | Added |
| Envestnet Asset Management Inc | 151,797 | $87.5M | 0.02% | −20,563−11.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 147,387 | $85.0M | 0.05% | +11,338+8.3% | Added |
| Camrose Capital Investment Partners LLP | 146,170 | $84.3M | 9.52% | +9,451+6.9% | Added |
| McDonald Capital Investors Inc | 138,976 | $80.1M | 5.85% | −10,936−7.3% | Reduced |
| Steginsky Capital LLC | 138,549 | $79.9M | 11.99% | +10,199+7.9% | Added |
| SEI Investments Co | 136,930 | $79.0M | 0.07% | −8,842−6.1% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 129,390 | $74.6M | 0.04% | +1,510+1.2% | Added |
| Vanguard Global Advisers, LLC | 129,228 | $74.5M | 0.03% | −2,212−1.7% | Reduced |
| Federated Hermes, Inc. | 125,494 | $72.4M | 0.10% | −18,868−13.1% | Reduced |
| Freestone Grove Partners LP | 124,262 | $71.7M | 0.47% | +124,262 | New |
| Junto Capital Management LP | 123,546 | $71.2M | 1.32% | +123,546 | New |
| HSBC Holdings PLC | 118,981 | $68.5M | 0.03% | +7,361+6.6% | Added |
| Progeny 3, Inc. | 113,150 | $65.3M | 3.37% | 00.0% | Unchanged |
| Silvercrest Asset Management Group LLC | 111,220 | $64.1M | 0.42% | −4,305−3.7% | Reduced |
| Rhumbline Advisers | 110,649 | $63.8M | 0.05% | +111+0.1% | Added |
| CI Private Wealth, LLC | 110,486 | $63.7M | 0.09% | +5,947+5.7% | Added |
| Vanguard Asset Management, Ltd | 109,207 | $63.0M | 0.04% | +12,844+13.3% | Added |
| M.D. Sass Investors Services, Inc. | 107,511 | $62.0M | 4.11% | +4,402+4.3% | Added |
| Barclays PLC | 101,852 | $58.7M | 0.02% | −44,261−30.3% | Reduced |
| National Pension Service | 95,221 | $54.9M | 0.04% | +5,739+6.4% | Added |
| Quantum Capital Management, LLC | 93,716 | $54.0M | 6.78% | +3,322+3.7% | Added |
| BNP Paribas Arbitrage, SA | 91,559 | $52.8M | 0.03% | +9,199+11.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 90,018 | $51.9M | 0.05% | +11,124+14.1% | Added |
| California State Teachers Retirement System | 88,562 | $51.1M | 0.05% | +18,410+26.2% | Added |
| Fenimore Asset Management Inc | 88,146 | $50.8M | 1.05% | −181−0.2% | Reduced |
| Harvey Partners, LLC | 87,035 | $50.2M | 3.48% | +23,110+36.2% | Added |
| Citigroup Inc | 83,747 | $48.3M | 0.02% | +22,942+37.7% | Added |
| Russell Investments Group, Ltd. | 83,255 | $48.0M | 0.04% | −8,920−9.7% | Reduced |
| Glenmede Trust Co NA | 82,181 | $47.4M | 0.21% | −2,571−3.0% | Reduced |
| Pictet Asset Management Holding SA | 82,136 | $47.4M | 0.05% | +44,850+120.3% | Added |
| California Public Employees Retirement System | 79,047 | $45.6M | 0.03% | −32,709−29.3% | Reduced |
| Canada Pension Plan Investment Board | 77,015 | $44.4M | 0.02% | +5,432+7.6% | Added |
| Lazard Freres Gestion S.A.S. | 75,935 | $43.8M | 0.76% | −5,755−7.0% | Reduced |
| TimesSquare Capital Management, LLC | 73,311 | $42.3M | 0.62% | +120.0% | Added |
| TD Asset Management Inc | 71,200 | $41.1M | 0.04% | −17,596−19.8% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 70,684 | $40.8M | 0.09% | −4,792−6.3% | Reduced |
| Gilder Gagnon Howe & Co LLC | 68,114 | $39.3M | 0.41% | −1,059−1.5% | Reduced |
| AQR Capital Management LLC | 67,001 | $38.6M | 0.01% | +1,541+2.4% | Added |
| Alliancebernstein L.P. | 63,917 | $37.6M | 0.01% | −10,668−14.3% | Reduced |
| Bornite Capital Management LP | 65,200 | $37.6M | 4.73% | +65,200 | New |
| Ameriprise Financial Inc | 64,342 | $37.1M | 0.01% | −43,229−40.2% | Reduced |
| Heritage Investors Management Corp | 63,180 | $36.4M | 1.01% | +941+1.5% | Added |