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
- 59.2M
- +954.3K (+1.6%) vs. Q1 2026
- Total value
- $34.2B
- −$107.1M (−0.3%) vs. Q1 2026
- New holders
- 110
- 363 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 | $34.3B |
| 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, 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 |
|---|---|---|---|---|---|
| Quantum Capital Management, LLC | 93,716 | $54.0M | 6.78% | +3,322+3.7% | Added |
| National Pension Service | 95,221 | $54.9M | 0.04% | +5,739+6.4% | Added |
| Barclays PLC | 101,852 | $58.7M | 0.02% | −44,261−30.3% | Reduced |
| M.D. Sass Investors Services, Inc. | 107,511 | $62.0M | 4.11% | +4,402+4.3% | Added |
| Vanguard Asset Management, Ltd | 109,207 | $63.0M | 0.04% | +12,844+13.3% | Added |
| CI Private Wealth, LLC | 110,486 | $63.7M | 0.09% | +5,947+5.7% | Added |
| Rhumbline Advisers | 110,649 | $63.8M | 0.05% | +111+0.1% | Added |
| Silvercrest Asset Management Group LLC | 111,220 | $64.1M | 0.42% | −4,305−3.7% | Reduced |
| Progeny 3, Inc. | 113,150 | $65.3M | 3.37% | 00.0% | Unchanged |
| HSBC Holdings PLC | 118,981 | $68.5M | 0.03% | +7,361+6.6% | Added |
| Junto Capital Management LP | 123,546 | $71.2M | 1.32% | +123,546 | New |
| Freestone Grove Partners LP | 124,262 | $71.7M | 0.47% | +124,262 | New |
| Federated Hermes, Inc. | 125,494 | $72.4M | 0.10% | −18,868−13.1% | Reduced |
| Vanguard Global Advisers, LLC | 129,228 | $74.5M | 0.03% | −2,212−1.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 129,390 | $74.6M | 0.04% | +1,510+1.2% | Added |
| SEI Investments Co | 136,930 | $79.0M | 0.07% | −8,842−6.1% | Reduced |
| Steginsky Capital LLC | 138,549 | $79.9M | 11.99% | +10,199+7.9% | Added |
| McDonald Capital Investors Inc | 138,976 | $80.1M | 5.85% | −10,936−7.3% | Reduced |
| Camrose Capital Investment Partners LLP | 146,170 | $84.3M | 9.52% | +9,451+6.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 147,387 | $85.0M | 0.05% | +11,338+8.3% | Added |
| Envestnet Asset Management Inc | 151,797 | $87.5M | 0.02% | −20,563−11.9% | Reduced |
| Nomura Asset Management International Inc. | 157,083 | $90.6M | 0.14% | +3,906+2.5% | Added |
| Royal Bank of Canada | 157,881 | $91.0M | 0.02% | −159−0.1% | Reduced |
| Rathbone Brothers plc | 160,365 | $92.5M | 0.34% | −2,626−1.6% | Reduced |
| RDST Capital LLC | 163,550 | $94.3M | 7.81% | +68,455+72.0% | Added |
| Swiss National Bank | 169,950 | $98.0M | 0.05% | −7,080−4.0% | Reduced |
| Nuveen, LLC | 173,430 | $100.0M | 0.02% | +4,135+2.4% | Added |
| DekaBank Deutsche Girozentrale | 177,524 | $102.2M | 0.17% | 00.0% | Unchanged |
| William Blair Investment Management, LLC | 181,902 | $104.9M | 0.32% | −90,490−33.2% | Reduced |
| London Co of Virginia | 187,051 | $107.9M | 0.62% | −2,572−1.4% | Reduced |
| Clearbridge Investments, LLC | 190,867 | $110.1M | 0.09% | −23,805−11.1% | Reduced |
| Findlay Park Partners LLP | 207,262 | $119.5M | 1.61% | +12,960+6.7% | Added |
| Diamond Hill Capital Management Inc | 213,905 | $123.4M | 0.99% | −75,245−26.0% | Reduced |
| 59 North Capital Management, LP | 214,146 | $123.5M | 2.75% | +214,146 | New |
| Douglass Winthrop Advisors, LLC | 217,073 | $125.2M | 2.16% | −2,000−0.9% | Reduced |
| Raymond James Financial Inc | 222,584 | $128.4M | 0.03% | −16,067−6.7% | Reduced |
| Deutsche Bank AG | 225,927 | $130.3M | 0.04% | −9,483−4.0% | Reduced |
| Great Lakes Advisors, LLC | 226,586 | $130.7M | 0.99% | +9,380+4.3% | Added |
| Hawk Ridge Capital Management LP | 238,655 | $137.6M | 4.41% | +78,120+48.7% | Added |
| Mawer Investment Management Ltd. | 241,545 | $139.3M | 0.95% | −14,133−5.5% | Reduced |
| Legal & General Group Plc | 249,518 | $143.9M | 0.03% | −17,020−6.4% | Reduced |
| Skye Global Management LP | 252,000 | $145.3M | 2.83% | −16,000−6.0% | Reduced |
| Amundi | 263,497 | $152.0M | 0.04% | −620−0.2% | Reduced |
| Wells Fargo & Company | 278,806 | $160.8M | 0.03% | +12,196+4.6% | Added |
| Vanguard Fiduciary Trust Co | 337,299 | $194.5M | 0.04% | −1,990−0.6% | Reduced |
| Davenport & Co LLC | 336,791 | $194.7M | 0.99% | −5,372−1.6% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 345,060 | $199.0M | 0.57% | +22,203+6.9% | Added |
| Bank of New York Mellon Corp | 345,624 | $199.3M | 0.03% | −25,334−6.8% | Reduced |
| UBS Asset Management Americas Inc | 386,046 | $222.6M | 0.04% | +46,228+13.6% | Added |
| UBS Group AG | 390,429 | $225.2M | 0.04% | +36,261+10.2% | Added |
| CIBC Bancorp USA Inc. | 390,665 | $225.5M | 0.28% | −83,878−17.7% | Reduced |
| Franklin Resources Inc | 459,327 | $264.9M | 0.06% | −68,872−13.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 486,058 | $280.3M | 0.33% | +38,010+8.5% | Added |
| Charles Schwab Investment Management Inc | 492,536 | $284.0M | 0.04% | +32,017+7.0% | Added |
| Norges Bank | 557,143 | $321.3M | 0.03% | +557,143 | New |
| Northern Trust Corp | 570,346 | $328.9M | 0.04% | −16,155−2.8% | Reduced |
| Dimensional Fund Advisors LP | 586,145 | $338.1M | 0.06% | +39,975+7.3% | Added |
| Alkeon Capital Management LLC | 627,351 | $361.8M | 1.40% | −120,000−16.1% | Reduced |
| T. Rowe Price Investment Management, Inc. | 641,321 | $369.9M | 0.24% | −311,080−32.7% | Reduced |
| Invesco Ltd. | 649,575 | $374.6M | 0.03% | −41,338−6.0% | Reduced |
| King Luther Capital Management Corp | 653,184 | $376.7M | 1.54% | −13,538−2.0% | Reduced |
| Gardner Russo & Quinn LLCSuperinvestorGardner Russo & Quinn | 705,367 | $406.8M | 4.56% | −10,044−1.4% | Reduced |
| Baillie Gifford & Co | 991,786 | $572.0M | 0.52% | −95,594−8.8% | Reduced |
| Select Equity Group, L.P. | 1,011,255 | $583.2M | 3.09% | −22,165−2.1% | Reduced |
| Morgan Stanley | 1,012,016 | $583.6M | 0.03% | −329,585−24.6% | Reduced |
| Goldman Sachs Group Inc | 1,163,330 | $670.9M | 0.07% | +277,475+31.3% | Added |
| TCI Fund Management LtdSuperinvestorTCI Fund Management | 1,315,109 | $758.4M | 1.44% | +1,315,109 | New |
| JPMorgan Chase & Co | 1,466,887 | $852.6M | 0.05% | −393,339−21.1% | Reduced |
| Geode Capital Management, LLC | 1,601,490 | $919.9M | 0.05% | +12,556+0.8% | Added |
| Price T Rowe Associates Inc | 1,599,324 | $922.3M | 0.09% | +110,484+7.4% | Added |
| Victory Capital Management Inc | 1,783,432 | $1.03B | 0.58% | +146,285+8.9% | Added |
| Aristotle Capital Management, LLC | 1,831,597 | $1.06B | 2.22% | −123,503−6.3% | Reduced |
| Principal Financial Group Inc | 2,116,369 | $1.22B | 0.60% | +22,427+1.1% | Added |
| FMR LLC | 2,192,603 | $1.26B | 0.05% | −415,376−15.9% | Reduced |
| Bank of America Corp | 2,446,762 | $1.41B | 0.09% | +46,983+2.0% | Added |
| State Street Corp | 3,159,639 | $1.82B | 0.05% | +282,071+9.8% | Added |
| Vanguard Portfolio Management LLC | 3,197,395 | $1.84B | 0.08% | +36,951+1.2% | Added |
| Vanguard Capital Management LLC | 3,929,705 | $2.27B | 0.05% | +12,322+0.3% | Added |
| BlackRock, Inc. | 4,692,446 | $2.71B | 0.04% | +6,689+0.1% | Added |
| Jennison Associates LLC | 0 | $0 | 0.00% | −32,303−100.0% | Sold out |
| Coalescence Partners Investment Management, LP | 0 | $0 | 0.00% | −30,716−100.0% | Sold out |
| Drummond Knight Asset Management Pty Ltd | 0 | $0 | 0.00% | −26,170−100.0% | Sold out |
| Andra AP-fonden | 0 | $0 | 0.00% | −14,947−100.0% | Sold out |
| LTS One Management LP | 0 | $0 | 0.00% | −10,845−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −8,733−100.0% | Sold out |
| Cercano Management LLC | 0 | $0 | 0.00% | −8,407−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −7,082−100.0% | Sold out |
| Banque Pictet & Cie SA | 0 | $0 | 0.00% | −5,898−100.0% | Sold out |
| SMA Capital LLC | 0 | $0 | 0.00% | −5,126−100.0% | Sold out |
| Regents Gate Capital LLP | 0 | $0 | 0.00% | −5,054−100.0% | Sold out |
| ASR Vermogensbeheer N.V. | 0 | $0 | 0.00% | −4,290−100.0% | Sold out |
| Cultivar Capital, Inc. | 0 | $0 | 0.00% | −4,147−100.0% | Sold out |
| Fremen Capital Management LP | 0 | $0 | 0.00% | −4,113−100.0% | Sold out |
| New Republic Capital, LLC | 0 | $0 | 0.00% | −3,594−100.0% | Sold out |
| Parr McKnight Wealth Management Group, LLC | 0 | $0 | 0.00% | −3,059−100.0% | Sold out |
| BNP Paribas | 0 | $0 | 0.00% | −3,243−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −2,923−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,749−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −2,547−100.0% | Sold out |
| JSF Financial, LLC | 0 | $0 | 0.00% | −2,213−100.0% | Sold out |