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 |
|---|---|---|---|---|---|
| Samara Investment Management, LLC | 1,764 | $1.04M | 1.08% | +1,764 | New |
| Castleark Management LLC | 1,760 | $1.04M | 0.03% | 00.0% | Unchanged |
| Princeton Capital Management LLC | 1,753 | $1.03M | 0.28% | +1+0.1% | Added |
| Park Avenue Securities LLC | 1,749 | $1.03M | 0.01% | +354+25.4% | Added |
| MAI Capital Management | 1,739 | $1.02M | 0.01% | −41−2.3% | Reduced |
| North Dakota State Investment Board | 1,734 | $1.02M | 0.04% | −322−15.7% | Reduced |
| Busey Wealth Management | 1,734 | $1.02M | 0.03% | −100−5.5% | Reduced |
| Natixis | 1,716 | $1.01M | 0.00% | −436−20.3% | Reduced |
| Profund Advisors LLC | 1,713 | $1.01M | 0.04% | +446+35.2% | Added |
| Argyle Capital Partners, LLC | 1,702 | $1.00M | 0.72% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 1,693 | $996.6K | 0.04% | 00.0% | Unchanged |
| MUFG Securities Americas Inc. | 1,669 | $982.5K | 0.06% | +44+2.7% | Added |
| Steward Partners Investment Advisory, LLC | 1,616 | $951.2K | 0.00% | −172−9.6% | Reduced |
| Hudson Bay Capital Management LP | 1,609 | $947.2K | 0.01% | −6,003−78.9% | Reduced |
| Mark Asset Management LP | 1,605 | $944.8K | 0.13% | −365−18.5% | Reduced |
| Squarepoint Ops LLC | 1,603 | $943.7K | 0.00% | −14,179−89.8% | Reduced |
| Signaturefd, LLC | 1,587 | $934.3K | 0.01% | +150+10.4% | Added |
| Benjamin Edwards Inc | 1,579 | $929.5K | 0.01% | +37+2.4% | Added |
| Kentucky Retirement Systems Insurance Trust Fund | 1,578 | $928.9K | 0.06% | 00.0% | Unchanged |
| Worthington Financial Partners, LLC | 1,577 | $928.2K | 0.80% | +24+1.5% | Added |
| Nomura Holdings Inc | 1,576 | $927.8K | 0.01% | +12+0.8% | Added |
| SevenBridge Financial Group, LLC | 1,519 | $927.6K | 0.15% | −3−0.2% | Reduced |
| Proficio Capital Partners LLC | 1,556 | $916.0K | 0.05% | 00.0% | Unchanged |
| Fayez Sarofim & Co | 1,550 | $912.5K | 0.00% | +82+5.6% | Added |
| Wahed Invest LLC | 1,532 | $901.9K | 0.12% | −45−2.9% | Reduced |
| Wellington Management Group LLP | 1,524 | $897.1K | 0.00% | +842+123.5% | Added |
| Warren Averett Asset Management, LLC | 1,517 | $893.2K | 0.01% | −211−12.2% | Reduced |
| V-Square Quantitative Management LLC | 1,503 | $884.8K | 0.09% | +16+1.1% | Added |
| 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 |
| Laird Norton Trust Company, LLC | 1,498 | $881.8K | 0.02% | −4−0.3% | Reduced |
| AlTi Global, Inc. | 1,496 | $880.7K | 0.02% | +18+1.2% | Added |
| Marnell Management LLC | 1,491 | $877.7K | 0.58% | +196+15.1% | Added |
| Texas Yale Capital Corp. | 1,489 | $876.5K | 0.02% | 00.0% | Unchanged |
| Canada Post Corp Registered Pension Plan | 1,487 | $875.4K | 0.03% | 00.0% | Unchanged |
| Qtron Investments LLC | 1,471 | $865.9K | 0.12% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 1,465 | $862.2K | 0.01% | −52−3.4% | Reduced |
| Simon Quick Advisors, LLC | 1,454 | $855.7K | 0.04% | −129−8.1% | Reduced |
| Global Trust Asset Management, LLC | 1,454 | $855.6K | 0.33% | −5−0.3% | Reduced |
| Syon Capital LLC | 1,429 | $841.3K | 0.04% | +54+3.9% | Added |
| State of Wyoming | 1,423 | $837.7K | 0.10% | −192−11.9% | Reduced |
| Texas Capital Bank Wealth Management Services Inc | 1,405 | $827.1K | 0.05% | +879+167.1% | Added |
| Signature Wealth Management Partners, LLC | 1,396 | $821.8K | 0.41% | 00.0% | Unchanged |
| Burling Wealth Partners, LLC | 1,391 | $818.9K | 0.13% | −45−3.1% | Reduced |
| Boston Private Wealth LLC | 1,384 | $814.6K | 0.05% | −57−4.0% | Reduced |
| GAM Holding AG | 1,371 | $807.1K | 0.07% | +215+18.6% | Added |
| Empire Financial Management Company, LLC | 1,352 | $795.9K | 0.18% | 00.0% | Unchanged |
| Checchi Capital Advisers, LLC | 1,343 | $790.6K | 0.05% | +82+6.5% | Added |
| First National Bank of Hutchinson | 1,343 | $790.6K | 0.50% | +36+2.8% | Added |
| Essex Investment Management Co LLC | 1,333 | $784.7K | 0.12% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 1,325 | $780.3K | 0.01% | −65−4.7% | Reduced |
| Colonial Trust Advisors | 1,308 | $770.0K | 0.06% | −96−6.8% | Reduced |
| Greenleaf Trust | 1,267 | $745.9K | 0.01% | +73+6.1% | Added |
| Vestcor Inc | 1,266 | $745.0K | 0.02% | 00.0% | Unchanged |
| Kapstone Financial Advisors LLC | 1,258 | $740.6K | 0.36% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 1,242 | $731.2K | 0.00% | +873+236.6% | Added |
| BBR Partners, LLC | 1,242 | $731.1K | 0.04% | +1,242 | New |
| Strategy Asset Managers LLC | 1,232 | $725.3K | 0.12% | 00.0% | Unchanged |
| Crewe Advisors LLC | 1,226 | $721.7K | 0.06% | 00.0% | Unchanged |
| Hilltop Holdings Inc. | 1,225 | $721.1K | 0.07% | −663−35.1% | Reduced |
| Bridgewealth Advisory Group, LLC | 1,208 | $711.3K | 0.15% | 00.0% | Unchanged |
| Chesapeake Capital Corp | 1,191 | $701.1K | 0.51% | −297−20.0% | Reduced |
| Ritholtz Wealth Management | 1,189 | $700.1K | 0.01% | +522+78.3% | Added |
| O'Brien Greene & Co. Inc | 1,168 | $687.7K | 0.19% | +10+0.9% | Added |
| Principal Street Partners, LLC | 1,162 | $684.0K | 0.11% | −11−0.9% | Reduced |
| Private Advisor Group, LLC | 1,153 | $678.8K | 0.00% | −14−1.2% | Reduced |
| Vines Capital Management, LLC | 1,122 | $660.5K | 0.65% | 00.0% | Unchanged |
| ISAM Funds (UK) Ltd | 1,120 | $659.3K | 0.33% | +277+32.9% | Added |
| Dynamic Technology Lab Private Ltd | 1,115 | $656.4K | 0.11% | +1,115 | New |
| Tarbox Family Office, Inc. | 1,102 | $648.7K | 0.11% | −54−4.7% | Reduced |
| Texas Bank & Trust Co | 1,100 | $647.5K | 0.24% | 00.0% | Unchanged |
| Hazlett, Burt & Watson, Inc. | 1,093 | $644.0K | 0.20% | 00.0% | Unchanged |
| EP Wealth Advisors, LLC | 1,093 | $643.6K | 0.00% | −237−17.8% | Reduced |
| Fidelis Capital Partners, LLC | 1,088 | $640.5K | 0.05% | −40−3.5% | Reduced |
| Castle Wealth Management LLC | 1,082 | $637.2K | 0.21% | +23+2.2% | Added |
| Moors & Cabot, Inc. | 1,082 | $637.0K | 0.03% | −34−3.0% | Reduced |
| Paladin Wealth, LLC | 1,081 | $636.4K | 0.44% | −115−9.6% | Reduced |
| Evolve Private Wealth, LLC | 1,079 | $635.2K | 0.03% | −114−9.6% | Reduced |
| Summit Financial, LLC | 1,075 | $632.7K | 0.01% | +119+12.4% | Added |
| Caisse de Depot Et Placement du Quebec | 1,068 | $628.7K | 0.00% | +1,068 | New |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 1,065 | $626.9K | 0.26% | −21−1.9% | Reduced |
| Patron Partners Advisors, LLC | 1,061 | $624.8K | 0.28% | +195+22.5% | Added |
| Massmutual Trust Co FSB | 1,047 | $616.3K | 0.02% | −70−6.3% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 1,043 | $614.2K | 0.02% | +299+40.2% | Added |
| Fifth Third Wealth Advisors LLC | 1,043 | $614.0K | 0.02% | +167+19.1% | Added |
| Equitable Holdings, Inc. | 1,011 | $610.7K | 0.00% | +614+154.7% | Added |
| SFMG, LLC | 1,037 | $610.5K | 0.04% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 1,033 | $608.2K | 0.22% | −24−2.3% | Reduced |
| WBH Advisory Inc | 1,000 | $598.9K | 0.04% | −109−9.8% | Reduced |
| Welch Group, LLC | 1,015 | $597.5K | 0.02% | 00.0% | Unchanged |
| Adalta Capital Management LLC | 1,015 | $597.5K | 0.29% | 00.0% | Unchanged |
| Stoneridge Investment Partners LLC | 1,014 | $597.0K | 0.43% | +1,014 | New |
| Jump Financial, LLC | 1,012 | $595.7K | 0.01% | −1,606−61.3% | Reduced |
| Recurrent Investment Advisors LLC | 1,008 | $593.4K | 0.04% | 00.0% | Unchanged |
| Baker Tilly Wealth Management, LLC | 1,005 | $591.7K | 0.14% | +3+0.3% | Added |
| Ferguson Wellman Capital Management, Inc | 1,004 | $591.0K | 0.01% | −4−0.4% | Reduced |
| Merrion Investment Management Co, LLC | 1,000 | $588.7K | 0.32% | 00.0% | Unchanged |
| Umb Bank N A | 988 | $581.6K | 0.01% | +11+1.1% | Added |
| Net Worth Advisory Group | 987 | $580.9K | 0.12% | −82−7.7% | Reduced |
| Tower Research Capital LLC (TRC) | 975 | $574.0K | 0.01% | −1,290−57.0% | Reduced |