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, Q1 2026
Institutional positions in Martin Marietta Materials Inc as of Mar 31, 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
- 1,077
- −27 vs. Q4 2025
- Shares held
- 58.4M
- +7.30M (+14.3%) vs. Q4 2025
- Total value
- $34.3B
- +$2.51B (+7.9%) vs. Q4 2025
- New holders
- 103
- 370 more added
- Sold out
- 130
- 377 more reduced
13 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Paladin Wealth, LLC | 1,081 | $636.4K | 0.44% | −115−9.6% | Reduced |
| Moors & Cabot, Inc. | 1,082 | $637.0K | 0.03% | −34−3.0% | Reduced |
| Castle Wealth Management LLC | 1,082 | $637.2K | 0.21% | +23+2.2% | Added |
| Fidelis Capital Partners, LLC | 1,088 | $640.5K | 0.05% | −40−3.5% | Reduced |
| EP Wealth Advisors, LLC | 1,093 | $643.6K | 0.00% | −237−17.8% | Reduced |
| Hazlett, Burt & Watson, Inc. | 1,093 | $644.0K | 0.20% | 00.0% | Unchanged |
| Texas Bank & Trust Co | 1,100 | $647.5K | 0.24% | 00.0% | Unchanged |
| Tarbox Family Office, Inc. | 1,102 | $648.7K | 0.11% | −54−4.7% | Reduced |
| Dynamic Technology Lab Private Ltd | 1,115 | $656.4K | 0.11% | +1,115 | New |
| ISAM Funds (UK) Ltd | 1,120 | $659.3K | 0.33% | +277+32.9% | Added |
| Vines Capital Management, LLC | 1,122 | $660.5K | 0.65% | 00.0% | Unchanged |
| Private Advisor Group, LLC | 1,153 | $678.8K | 0.00% | −14−1.2% | Reduced |
| Principal Street Partners, LLC | 1,162 | $684.0K | 0.11% | −11−0.9% | Reduced |
| O'Brien Greene & Co. Inc | 1,168 | $687.7K | 0.19% | +10+0.9% | Added |
| Ritholtz Wealth Management | 1,189 | $700.1K | 0.01% | +522+78.3% | Added |
| Chesapeake Capital Corp | 1,191 | $701.1K | 0.51% | −297−20.0% | Reduced |
| Bridgewealth Advisory Group, LLC | 1,208 | $711.3K | 0.15% | 00.0% | Unchanged |
| Hilltop Holdings Inc. | 1,225 | $721.1K | 0.07% | −663−35.1% | Reduced |
| Crewe Advisors LLC | 1,226 | $721.7K | 0.06% | 00.0% | Unchanged |
| Strategy Asset Managers LLC | 1,232 | $725.3K | 0.12% | 00.0% | Unchanged |
| BBR Partners, LLC | 1,242 | $731.1K | 0.04% | +1,242 | New |
| Cresset Asset Management, LLC | 1,242 | $731.2K | 0.00% | +873+236.6% | Added |
| Kapstone Financial Advisors LLC | 1,258 | $740.6K | 0.36% | 00.0% | Unchanged |
| Vestcor Inc | 1,266 | $745.0K | 0.02% | 00.0% | Unchanged |
| Greenleaf Trust | 1,267 | $745.9K | 0.01% | +73+6.1% | Added |
| Colonial Trust Advisors | 1,308 | $770.0K | 0.06% | −96−6.8% | Reduced |
| Parallel Advisors, LLC | 1,325 | $780.3K | 0.01% | −65−4.7% | Reduced |
| Essex Investment Management Co LLC | 1,333 | $784.7K | 0.12% | 00.0% | Unchanged |
| First National Bank of Hutchinson | 1,343 | $790.6K | 0.50% | +36+2.8% | Added |
| Checchi Capital Advisers, LLC | 1,343 | $790.6K | 0.05% | +82+6.5% | Added |
| Empire Financial Management Company, LLC | 1,352 | $795.9K | 0.18% | 00.0% | Unchanged |
| GAM Holding AG | 1,371 | $807.1K | 0.07% | +215+18.6% | Added |
| Boston Private Wealth LLC | 1,384 | $814.6K | 0.05% | −57−4.0% | Reduced |
| Burling Wealth Partners, LLC | 1,391 | $818.9K | 0.13% | −45−3.1% | Reduced |
| Signature Wealth Management Partners, LLC | 1,396 | $821.8K | 0.41% | 00.0% | Unchanged |
| Texas Capital Bank Wealth Management Services Inc | 1,405 | $827.1K | 0.05% | +879+167.1% | Added |
| State of Wyoming | 1,423 | $837.7K | 0.10% | −192−11.9% | Reduced |
| Syon Capital LLC | 1,429 | $841.3K | 0.04% | +54+3.9% | Added |
| Global Trust Asset Management, LLC | 1,454 | $855.6K | 0.33% | −5−0.3% | Reduced |
| Simon Quick Advisors, LLC | 1,454 | $855.7K | 0.04% | −129−8.1% | Reduced |
| Cullen/Frost Bankers, Inc. | 1,465 | $862.2K | 0.01% | −52−3.4% | Reduced |
| Qtron Investments LLC | 1,471 | $865.9K | 0.12% | 00.0% | Unchanged |
| Canada Post Corp Registered Pension Plan | 1,487 | $875.4K | 0.03% | 00.0% | Unchanged |
| Texas Yale Capital Corp. | 1,489 | $876.5K | 0.02% | 00.0% | Unchanged |
| Marnell Management LLC | 1,491 | $877.7K | 0.58% | +196+15.1% | Added |
| AlTi Global, Inc. | 1,496 | $880.7K | 0.02% | +18+1.2% | Added |
| Laird Norton Trust Company, LLC | 1,498 | $881.8K | 0.02% | −4−0.3% | Reduced |
| Wolverine Asset Management LLC | 1,500 | $883.0K | 0.01% | −4,500−75.0% | Reduced |
| Curated Wealth Partners LLC | 1,500 | $883.0K | 0.11% | −321−17.6% | Reduced |
| V-Square Quantitative Management LLC | 1,503 | $884.8K | 0.09% | +16+1.1% | Added |
| Warren Averett Asset Management, LLC | 1,517 | $893.2K | 0.01% | −211−12.2% | Reduced |
| Wellington Management Group LLP | 1,524 | $897.1K | 0.00% | +842+123.5% | Added |
| Wahed Invest LLC | 1,532 | $901.9K | 0.12% | −45−2.9% | Reduced |
| Fayez Sarofim & Co | 1,550 | $912.5K | 0.00% | +82+5.6% | Added |
| Proficio Capital Partners LLC | 1,556 | $916.0K | 0.05% | 00.0% | Unchanged |
| SevenBridge Financial Group, LLC | 1,519 | $927.6K | 0.15% | −3−0.2% | Reduced |
| Nomura Holdings Inc | 1,576 | $927.8K | 0.01% | +12+0.8% | Added |
| Worthington Financial Partners, LLC | 1,577 | $928.2K | 0.80% | +24+1.5% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 1,578 | $928.9K | 0.06% | 00.0% | Unchanged |
| Benjamin Edwards Inc | 1,579 | $929.5K | 0.01% | +37+2.4% | Added |
| Signaturefd, LLC | 1,587 | $934.3K | 0.01% | +150+10.4% | Added |
| Squarepoint Ops LLC | 1,603 | $943.7K | 0.00% | −14,179−89.8% | Reduced |
| Mark Asset Management LP | 1,605 | $944.8K | 0.13% | −365−18.5% | Reduced |
| Hudson Bay Capital Management LP | 1,609 | $947.2K | 0.01% | −6,003−78.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 1,616 | $951.2K | 0.00% | −172−9.6% | Reduced |
| MUFG Securities Americas Inc. | 1,669 | $982.5K | 0.06% | +44+2.7% | Added |
| Securian Asset Management, Inc | 1,693 | $996.6K | 0.04% | 00.0% | Unchanged |
| Argyle Capital Partners, LLC | 1,702 | $1.00M | 0.72% | 00.0% | Unchanged |
| Profund Advisors LLC | 1,713 | $1.01M | 0.04% | +446+35.2% | Added |
| Natixis | 1,716 | $1.01M | 0.00% | −436−20.3% | Reduced |
| Busey Wealth Management | 1,734 | $1.02M | 0.03% | −100−5.5% | Reduced |
| North Dakota State Investment Board | 1,734 | $1.02M | 0.04% | −322−15.7% | Reduced |
| MAI Capital Management | 1,739 | $1.02M | 0.01% | −41−2.3% | Reduced |
| Park Avenue Securities LLC | 1,749 | $1.03M | 0.01% | +354+25.4% | Added |
| Princeton Capital Management LLC | 1,753 | $1.03M | 0.28% | +1+0.1% | Added |
| Castleark Management LLC | 1,760 | $1.04M | 0.03% | 00.0% | Unchanged |
| Samara Investment Management, LLC | 1,764 | $1.04M | 1.08% | +1,764 | New |
| Banque Cantonale Vaudoise | 1,767 | $1.04M | 0.04% | +445+33.7% | Added |
| NVWM, LLC | 1,789 | $1.05M | 0.23% | −10−0.6% | Reduced |
| Horizon Investments, LLC | 1,820 | $1.07M | 0.01% | +45+2.5% | Added |
| Trust Investment Advisors | 1,840 | $1.08M | 0.63% | −58−3.1% | Reduced |
| Ironsides Asset Advisors, LLC | 1,873 | $1.10M | 0.28% | +100+5.6% | Added |
| Guggenheim Capital LLC | 1,887 | $1.11M | 0.01% | +97+5.4% | Added |
| Main Street Financial Solutions, LLC | 1,903 | $1.12M | 0.08% | −355−15.7% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 1,909 | $1.12M | 0.01% | −532−21.8% | Reduced |
| Merit Financial Group, LLC | 1,918 | $1.13M | 0.01% | −323−14.4% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 1,930 | $1.14M | 0.02% | +2+0.1% | Added |
| First American Bank | 1,946 | $1.15M | 0.07% | +9+0.5% | Added |
| Monticello Wealth Management, LLC | 1,948 | $1.15M | 0.07% | −300−13.3% | Reduced |
| Smartleaf Asset Management LLC | 2,003 | $1.15M | 0.04% | +134+7.2% | Added |
| United Capital Financial Advisers, LLC | 1,963 | $1.16M | 0.01% | +166+9.2% | Added |
| Kestra Private Wealth Services, LLC | 1,973 | $1.16M | 0.01% | +131+7.1% | Added |
| IMC-Chicago, LLC | 2,000 | $1.18M | 0.02% | +2,000 | New |
| Principal Securities, Inc. | 2,015 | $1.19M | 0.02% | +42+2.1% | Added |
| Sterling Capital Management LLC | 2,017 | $1.19M | 0.02% | −1,538−43.3% | Reduced |
| Allworth Financial LP | 2,025 | $1.19M | 0.00% | +143+7.6% | Added |
| Intech Investment Management LLC | 2,048 | $1.21M | 0.01% | −23−1.1% | Reduced |
| E. Ohman J:or Asset Management AB | 2,060 | $1.21M | 0.03% | 00.0% | Unchanged |
| Ballentine Partners, LLC | 2,065 | $1.22M | 0.02% | +586+39.6% | Added |
| Brown Financial Advisors | 2,093 | $1.23M | 0.47% | −298−12.5% | Reduced |