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 |
|---|---|---|---|---|---|
| Cigna Investments Inc | 582 | $342.0K | 0.05% | 00.0% | Unchanged |
| Forum Financial Management, LP | 571 | $336.1K | 0.00% | −799−58.3% | Reduced |
| Phoenix Holdings Ltd. | 569 | $335.0K | 0.00% | +107+23.2% | Added |
| Corsicana & Co. | 700 | $334.7K | 0.21% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 548 | $334.4K | 0.01% | +13+2.4% | Added |
| iA Global Asset Management Inc. | 560 | $330.0K | 0.00% | 00.0% | Unchanged |
| Western Wealth Management, LLC | 559 | $328.8K | 0.01% | +27+5.1% | Added |
| First Citizens Financial Corp | 558 | $328.5K | 0.16% | +215+62.7% | Added |
| Citizens Financial Group Inc | 554 | $326.3K | 0.00% | −534−49.1% | Reduced |
| PDS Planning, Inc | 554 | $326.1K | 0.02% | −5−0.9% | Reduced |
| Empirical Asset Management, LLC | 554 | $326.0K | 0.09% | −2−0.4% | Reduced |
| Atomi Financial Group, Inc. | 553 | $325.7K | 0.01% | −597−51.9% | Reduced |
| Helen Stephens Group, LLC | 551 | $324.2K | 0.06% | +97+21.4% | Added |
| Ameritas Investment Partners, Inc. | 550 | $323.8K | 0.01% | 00.0% | Unchanged |
| Formidable Asset Management, LLC | 515 | $320.9K | 0.05% | 00.0% | Unchanged |
| Byrne Asset Management LLC | 540 | $317.9K | 0.19% | −32−5.6% | Reduced |
| J. Safra Sarasin Holding AG | 539 | $317.3K | 0.01% | +13+2.5% | Added |
| Cypress Wealth Services, LLC | 537 | $316.2K | 0.04% | +1+0.2% | Added |
| one8zero8, LLC | 536 | $315.5K | 0.07% | 00.0% | Unchanged |
| Cresta Advisors, Ltd. | 529 | $311.4K | 0.13% | 00.0% | Unchanged |
| Brookstone Capital Management | 527 | $310.0K | 0.00% | −71−11.9% | Reduced |
| Geneos Wealth Management Inc. | 526 | $309.6K | 0.01% | 00.0% | Unchanged |
| Ariston Services Group | 0 | $303.8K | 0.18% | −516−100.0% | Reduced |
| N.E.W. Advisory Services LLC | 516 | $303.8K | 0.02% | 00.0% | Unchanged |
| Edgestream Partners, L.P. | 513 | $302.0K | 0.01% | +513 | New |
| Verus Capital Partners, LLC | 511 | $300.8K | 0.02% | −39−7.1% | Reduced |
| Resources Investment Advisors, LLC. | 510 | $300.5K | 0.00% | −171−25.1% | Reduced |
| LexAurum Advisors, LLC | 509 | $299.7K | 0.04% | +509 | New |
| Blueshift Asset Management, LLC | 507 | $298.5K | 0.09% | +507 | New |
| Monetary Management Group Inc | 500 | $294.3K | 0.07% | 00.0% | Unchanged |
| City State Bank | 497 | $292.6K | 0.08% | 00.0% | Unchanged |
| Ironwood Investment Counsel, LLC | 495 | $291.5K | 0.04% | −4−0.8% | Reduced |
| AMG National Trust Bank | 495 | $291.2K | 0.01% | +17+3.6% | Added |
| St. Nicholas Private Asset Management, Inc | 494 | $290.8K | 0.27% | 00.0% | Unchanged |
| Essex Financial Services, Inc. | 494 | $290.7K | 0.02% | +113+29.7% | Added |
| South Shore Capital Advisors | 493 | $290.2K | 0.21% | +170+52.6% | Added |
| Citizens Business Bank | 493 | $290.2K | 0.05% | 00.0% | Unchanged |
| Mission Wealth Management, LP | 492 | $289.7K | 0.01% | −197−28.6% | Reduced |
| Fulton Bank, N.A. | 492 | $289.6K | 0.01% | +24+5.1% | Added |
| WealthShield Partners, LLC | 491 | $289.0K | 0.03% | +491 | New |
| Kingsview Wealth Management, LLC | 490 | $288.4K | 0.00% | +490 | New |
| Mutual Advisors, LLC | 489 | $288.0K | 0.01% | −5−1.0% | Reduced |
| Ci Investments Inc. | 486 | $286.1K | 0.00% | +2+0.4% | Added |
| Select Asset Management & Trust | 484 | $285.0K | 0.09% | 00.0% | Unchanged |
| Insigneo Advisory Services, LLC | 481 | $283.2K | 0.02% | −21−4.2% | Reduced |
| First Horizon Corp | 481 | $283.2K | 0.01% | +2+0.4% | Added |
| Icon Wealth Advisors, LLC | 462 | $283.1K | 0.02% | +45+10.8% | Added |
| Adviser Investments LLC | 479 | $282.0K | 0.00% | +19+4.1% | Added |
| Fideuram Asset Management (Ireland) dac | 404 | $281.1K | 0.04% | +330+445.9% | Added |
| Hennion & Walsh Asset Management, Inc. | 476 | $280.2K | 0.01% | +476 | New |
| Taylor Financial Group, Inc. | 475 | $279.6K | 0.17% | 00.0% | Unchanged |
| Eagle Capital Management LLC | 470 | $276.5K | 0.00% | −320,284−99.9% | Reduced |
| Retirement Planning Group | 469 | $276.1K | 0.01% | 00.0% | Unchanged |
| Heritage Trust Co | 462 | $272.0K | 0.03% | 00.0% | Unchanged |
| Allianz SE | 460 | $270.8K | 0.00% | 00.0% | Unchanged |
| Sunbeam Capital Management, LLC | 458 | $269.6K | 0.15% | 00.0% | Unchanged |
| Ameritas Advisory Services, LLC | 452 | $266.1K | 0.01% | +28+6.6% | Added |
| One Wealth Capital Management, LLC | 432 | $265.3K | 0.12% | −126−22.6% | Reduced |
| Aureus Asset Management, LLC | 450 | $264.9K | 0.02% | +450 | New |
| BIP Wealth, LLC | 449 | $264.1K | 0.01% | −45−9.1% | Reduced |
| Drive Wealth Management, LLC | 446 | $262.7K | 0.06% | −42−8.6% | Reduced |
| Collective Family Office LLC | 440 | $259.0K | 0.06% | −25−5.4% | Reduced |
| Dynamic Advisor Solutions LLC | 439 | $258.4K | 0.01% | −14−3.1% | Reduced |
| Johnson Investment Counsel Inc | 437 | $257.3K | 0.00% | +13+3.1% | Added |
| National Asset Management, Inc. | 447 | $256.5K | 0.02% | +24+5.7% | Added |
| Campion Asset Management LLC | 435 | $256.1K | 0.17% | 00.0% | Unchanged |
| Pekin Hardy Strauss, Inc. | 433 | $254.9K | 0.03% | −20−4.4% | Reduced |
| Flputnam Investment Management Co | 432 | $254.3K | 0.00% | +8+1.9% | Added |
| Patrick M Sweeney & Associates, Inc | 430 | $253.1K | 0.16% | 00.0% | Unchanged |
| Mather Group, LLC. | 421 | $247.6K | 0.00% | −65−13.4% | Reduced |
| Kovack Advisors, Inc. | 414 | $247.6K | 0.01% | −2,769−87.0% | Reduced |
| Claret Asset Management Corp | 420 | $247.0K | 0.03% | +4+1.0% | Added |
| Prospera Financial Services Inc | 417 | $246.2K | 0.00% | +29+7.5% | Added |
| Tred Avon Family Wealth, LLC | 418 | $246.1K | 0.08% | −3−0.7% | Reduced |
| Breakwater Capital Group | 418 | $246.1K | 0.03% | 00.0% | Unchanged |
| Wealth Enhancement Trust Services, Inc. | 418 | $246.1K | 0.03% | +369+753.1% | Added |
| TCG Advisory Services, LLC | 417 | $245.5K | 0.01% | +417 | New |
| Larson Financial Group LLC | 414 | $243.7K | 0.01% | −108−20.7% | Reduced |
| Heartwood Wealth Advisors LLC | 413 | $243.1K | 0.02% | 00.0% | Unchanged |
| Supplemental Annuity Collective Trust of NJ | 408 | $240.2K | 0.07% | −862−67.9% | Reduced |
| Teamwork Financial Advisors, LLC | 400 | $235.5K | 0.03% | −4−1.0% | Reduced |
| Palisade Capital Management LLC | 400 | $235.5K | 0.01% | 00.0% | Unchanged |
| Marco Investment Management LLC | 400 | $235.5K | 0.02% | 00.0% | Unchanged |
| Charter Research & Investment Group, Inc. | 400 | $235.5K | 0.16% | 00.0% | Unchanged |
| Delta Investment Management, LLC | 400 | $235.5K | 0.04% | 00.0% | Unchanged |
| DV Trading LLC | 400 | $235.5K | 0.02% | +400 | New |
| Triad Wealth Partners, LLC | 398 | $234.3K | 0.02% | +398 | New |
| IHT Wealth Management, LLC | 397 | $233.6K | 0.01% | +10+2.6% | Added |
| Central Bank & Trust Co | 395 | $232.5K | 0.04% | 00.0% | Unchanged |
| Pines Wealth Management, LLC | 393 | $231.4K | 0.07% | +9+2.3% | Added |
| Dana Investment Advisors, Inc. | 386 | $227.2K | 0.01% | −34−8.1% | Reduced |
| Banco Santander, S.A. | 386 | $227.2K | 0.00% | 00.0% | Unchanged |
| Thompson Siegel & Walmsley LLC | 385 | $227.0K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 385 | $226.9K | 0.01% | +45+13.2% | Added |
| One Wealth Advisors, LLC | 384 | $226.1K | 0.03% | +32+9.1% | Added |
| Patton Fund Management, Inc. | 381 | $224.3K | 0.04% | 00.0% | Unchanged |
| ING Groep NV | 378 | $222.5K | 0.00% | −16−4.1% | Reduced |
| Modera Wealth Management, LLC | 376 | $221.3K | 0.00% | −21−5.3% | Reduced |
| Fortune Financial Advisors, LLC | 375 | $220.8K | 0.11% | +375 | New |
| One Capital Management, LLC | 374 | $220.2K | 0.01% | +5+1.4% | Added |