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 |
|---|---|---|---|---|---|
| Massachusetts Financial Services Co | 2,098 | $1.24M | 0.00% | −11−0.5% | Reduced |
| AXA S.A. | 2,118 | $1.25M | 0.49% | −242−10.3% | Reduced |
| Gilbert & Cook, Inc. | 2,129 | $1.25M | 0.16% | −6−0.3% | Reduced |
| Empirical Finance, LLC | 2,129 | $1.25M | 0.06% | −6−0.3% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 2,188 | $1.29M | 0.01% | −30−1.4% | Reduced |
| Stablepoint Partners, LLC | 2,203 | $1.30M | 0.19% | +33+1.5% | Added |
| JSF Financial, LLC | 2,213 | $1.30M | 0.26% | −47−2.1% | Reduced |
| Saudi Central Bank | 2,226 | $1.31M | 0.03% | +2,226 | New |
| Pinnacle Financial Partners, Inc. | 2,232 | $1.31M | 0.01% | −235−9.5% | Reduced |
| Quadrant Capital Group LLC | 2,237 | $1.32M | 0.04% | +51+2.3% | Added |
| Allianz Asset Management GmbH | 2,247 | $1.32M | 0.00% | +323+16.8% | Added |
| Simmons Bank | 2,262 | $1.33M | 0.09% | −100−4.2% | Reduced |
| Tokio Marine Asset Management Co Ltd | 2,272 | $1.34M | 0.05% | +148+7.0% | Added |
| Hudson Value Partners, LLC | 2,275 | $1.34M | 0.40% | −75−3.2% | Reduced |
| Tema ETFs LLC | 2,276 | $1.34M | 0.09% | −520−18.6% | Reduced |
| Meeder Advisory Services, Inc. | 2,307 | $1.36M | 0.06% | −31−1.3% | Reduced |
| Metis Global Partners, LLC | 2,309 | $1.36M | 0.03% | −277−10.7% | Reduced |
| Ascent Group, LLC | 2,309 | $1.36M | 0.05% | −25−1.1% | Reduced |
| Portfolio Design Labs, LLC | 2,323 | $1.37M | 0.24% | −60−2.5% | Reduced |
| Hunter Associates Investment Management LLC | 2,337 | $1.38M | 0.18% | +12+0.5% | Added |
| Brandywine Trust Co | 2,400 | $1.41M | 0.26% | 00.0% | Unchanged |
| Aptus Capital Advisors, LLC | 2,403 | $1.41M | 0.01% | −202−7.8% | Reduced |
| Valeo Financial Advisors, LLC | 2,404 | $1.42M | 0.03% | +1,497+165.0% | Added |
| Capital Investment Counsel, Inc | 2,406 | $1.42M | 0.17% | 00.0% | Unchanged |
| Little House Capital LLC | 2,445 | $1.44M | 0.37% | −19−0.8% | Reduced |
| InTrack Investment Management Inc | 2,449 | $1.44M | 0.82% | +59+2.5% | Added |
| Lido Advisors, LLC | 2,452 | $1.44M | 0.01% | +532+27.7% | Added |
| Savant Capital, LLC | 2,459 | $1.45M | 0.01% | +524+27.1% | Added |
| MUFG Securities EMEA plc | 2,475 | $1.46M | 0.02% | 00.0% | Unchanged |
| Argent Trust Co | 2,488 | $1.46M | 0.05% | −673−21.3% | Reduced |
| Accretive Wealth Partners, LLC | 2,515 | $1.48M | 0.42% | +13+0.5% | Added |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna | 2,527 | $1.49M | 0.61% | −435−14.7% | Reduced |
| GAMMA Investing LLC | 2,540 | $1.50M | 0.07% | +183+7.8% | Added |
| Virtu Financial LLC | 2,547 | $1.50M | 0.06% | +2,547 | New |
| CAPROCK Group, Inc. | 2,566 | $1.51M | 0.04% | −42−1.6% | Reduced |
| Keybank National Association | 2,588 | $1.52M | 0.01% | +10+0.4% | Added |
| Alpha Omega Wealth Management LLC | 2,604 | $1.53M | 0.25% | −33−1.3% | Reduced |
| Tudor Investment Corp Et Al | 2,649 | $1.56M | 0.01% | +2,649 | New |
| Reuter James Wealth Management, LLC | 2,675 | $1.57M | 0.23% | −37−1.4% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 2,675 | $1.57M | 0.05% | +272+11.3% | Added |
| Madden Securities Corp | 2,685 | $1.58M | 0.48% | +85+3.3% | Added |
| Regions Financial Corp | 2,708 | $1.59M | 0.01% | −237−8.0% | Reduced |
| Coldstream Capital Management Inc | 2,712 | $1.60M | 0.02% | +195+7.7% | Added |
| Bartlett & Co. Wealth Management LLC | 2,679 | $1.62M | 0.02% | −12−0.4% | Reduced |
| Two Sigma Securities, LLC | 2,749 | $1.62M | 0.19% | +1,764+179.1% | Added |
| Graham Capital Management, L.P. | 2,750 | $1.62M | 0.05% | +2,362+608.8% | Added |
| New Mexico Educational Retirement Board | 2,750 | $1.62M | 0.05% | 00.0% | Unchanged |
| Fiduciary Trust Co | 2,835 | $1.67M | 0.02% | +448+18.8% | Added |
| Empowered Funds, LLC | 2,835 | $1.67M | 0.01% | +2,835 | New |
| Summit Trail Advisors, LLC | 2,869 | $1.69M | 0.02% | −13−0.5% | Reduced |
| Eventide Asset Management, LLC | 2,908 | $1.70M | 0.03% | +18+0.6% | Added |
| Leavell Investment Management, Inc. | 2,921 | $1.72M | 0.07% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 2,923 | $1.72M | 0.47% | +2,923 | New |
| Lederer & Associates Investment Counsel | 2,931 | $1.73M | 1.22% | −22−0.7% | Reduced |
| Abc Arbitrage SA | 2,935 | $1.73M | 0.23% | +2,935 | New |
| Maryland State Retirement & Pension System | 2,942 | $1.73M | 0.04% | 00.0% | Unchanged |
| Whitener Capital Management, Inc. | 2,960 | $1.74M | 0.40% | 00.0% | Unchanged |
| Bank Julius Baer & Co. Ltd, Zurich | 3,030 | $1.74M | 0.01% | −1,001−24.8% | Reduced |
| Walleye Trading LLC | 2,965 | $1.75M | 0.04% | +1,547+109.1% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 2,968 | $1.75M | 0.07% | +2,968 | New |
| Jane Street Group, LLC | 2,974 | $1.75M | 0.00% | +10.0% | Added |
| Callan Family Office, LLC | 2,974 | $1.75M | 0.04% | −111−3.6% | Reduced |
| Commerce Bank | 2,982 | $1.76M | 0.01% | +268+9.9% | Added |
| BNP Paribas | 3,243 | $1.76M | 0.06% | +2,948+999.3% | Added |
| Evermay Wealth Management LLC | 3,001 | $1.77M | 0.20% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 3,003 | $1.77M | 0.04% | −51−1.7% | Reduced |
| Apollon Wealth Management, LLC | 3,004 | $1.77M | 0.03% | +195+6.9% | Added |
| 17 Capital Partners, LLC | 3,013 | $1.77M | 0.92% | 00.0% | Unchanged |
| XTX Topco Ltd | 3,034 | $1.79M | 0.03% | +3,034 | New |
| Parr McKnight Wealth Management Group, LLC | 3,059 | $1.80M | 0.24% | +228+8.1% | Added |
| Montag A & Associates Inc | 3,069 | $1.81M | 0.08% | +29+1.0% | Added |
| Allspring Global Investments Holdings, LLC | 3,019 | $1.81M | 0.00% | −11−0.4% | Reduced |
| Hantz Financial Services, Inc. | 3,080 | $1.81M | 0.03% | +122+4.1% | Added |
| QRG Capital Management, Inc. | 3,096 | $1.82M | 0.02% | −55−1.7% | Reduced |
| Louisiana State Employees Retirement System | 3,100 | $1.82M | 0.03% | 00.0% | Unchanged |
| AG2R la Mondiale Gestion D'Actifs | 3,108 | $1.83M | 0.08% | +87+2.9% | Added |
| Raiffeisen Bank International AG | 3,209 | $1.84M | 0.03% | −1,003−23.8% | Reduced |
| Osmosis Investment Management UK Ltd | 3,140 | $1.85M | 0.05% | −98−3.0% | Reduced |
| Huntington National Bank | 3,180 | $1.87M | 0.01% | −102−3.1% | Reduced |
| WSFS Capital Management, LLC | 3,248 | $1.91M | 0.09% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 3,249 | $1.91M | 0.01% | −1,698−34.3% | Reduced |
| Schear Investment Advisers, LLC | 3,278 | $1.93M | 0.85% | +129+4.1% | Added |
| CWM Advisors, LLC | 3,286 | $1.93M | 0.11% | +2,764+529.5% | Added |
| Harfst & Associates, Inc. | 3,391 | $2.00M | 0.36% | +337+11.0% | Added |
| Hartford Investment Management Co | 3,430 | $2.02M | 0.06% | −41−1.2% | Reduced |
| Norinchukin Bank, The | 3,463 | $2.04M | 0.02% | +16+0.5% | Added |
| Arkadios Wealth Advisors | 3,492 | $2.06M | 0.03% | +39+1.1% | Added |
| GWM Advisors LLC | 3,502 | $2.06M | 0.01% | −87−2.4% | Reduced |
| New Republic Capital, LLC | 3,594 | $2.12M | 0.71% | −116−3.1% | Reduced |
| Rafferty Asset Management, LLC | 3,614 | $2.13M | 0.01% | −1,437−28.4% | Reduced |
| Weaver Capital Management LLC | 3,620 | $2.13M | 0.46% | −135−3.6% | Reduced |
| RD Lewis Holdings, Inc. | 3,408 | $2.13M | 1.85% | −3−0.1% | Reduced |
| Mizuho Securities USA LLC | 3,646 | $2.15M | 0.05% | −745−17.0% | Reduced |
| Generali Asset Management SPA SGR | 3,690 | $2.17M | 0.05% | +83+2.3% | Added |
| Brown Brothers Harriman & Co | 3,703 | $2.18M | 0.01% | +131+3.7% | Added |
| Kestra Advisory Services, LLC | 3,747 | $2.21M | 0.01% | −1,984−34.6% | Reduced |
| Pinnacle Associates Ltd | 3,770 | $2.22M | 0.03% | +19+0.5% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 3,796 | $2.23M | 0.00% | +1,412+59.2% | Added |
| Mattson Financial Services, LLC | 3,834 | $2.26M | 0.54% | −291−7.1% | Reduced |
| Griffin Asset Management, Inc. | 3,850 | $2.27M | 0.26% | −300−7.2% | Reduced |