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 |
|---|---|---|---|---|---|
| TCG Advisory Services, LLC | 417 | $245.5K | 0.01% | +417 | New |
| 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 |
| Prospera Financial Services Inc | 417 | $246.2K | 0.00% | +29+7.5% | Added |
| Claret Asset Management Corp | 420 | $247.0K | 0.03% | +4+1.0% | Added |
| Kovack Advisors, Inc. | 414 | $247.6K | 0.01% | −2,769−87.0% | Reduced |
| Mather Group, LLC. | 421 | $247.6K | 0.00% | −65−13.4% | Reduced |
| Patrick M Sweeney & Associates, Inc | 430 | $253.1K | 0.16% | 00.0% | Unchanged |
| Flputnam Investment Management Co | 432 | $254.3K | 0.00% | +8+1.9% | Added |
| Pekin Hardy Strauss, Inc. | 433 | $254.9K | 0.03% | −20−4.4% | Reduced |
| Campion Asset Management LLC | 435 | $256.1K | 0.17% | 00.0% | Unchanged |
| National Asset Management, Inc. | 447 | $256.5K | 0.02% | +24+5.7% | Added |
| Johnson Investment Counsel Inc | 437 | $257.3K | 0.00% | +13+3.1% | Added |
| Dynamic Advisor Solutions LLC | 439 | $258.4K | 0.01% | −14−3.1% | Reduced |
| Collective Family Office LLC | 440 | $259.0K | 0.06% | −25−5.4% | Reduced |
| Drive Wealth Management, LLC | 446 | $262.7K | 0.06% | −42−8.6% | Reduced |
| BIP Wealth, LLC | 449 | $264.1K | 0.01% | −45−9.1% | Reduced |
| Aureus Asset Management, LLC | 450 | $264.9K | 0.02% | +450 | New |
| One Wealth Capital Management, LLC | 432 | $265.3K | 0.12% | −126−22.6% | Reduced |
| Ameritas Advisory Services, LLC | 452 | $266.1K | 0.01% | +28+6.6% | Added |
| Sunbeam Capital Management, LLC | 458 | $269.6K | 0.15% | 00.0% | Unchanged |
| Allianz SE | 460 | $270.8K | 0.00% | 00.0% | Unchanged |
| Heritage Trust Co | 462 | $272.0K | 0.03% | 00.0% | Unchanged |
| Retirement Planning Group | 469 | $276.1K | 0.01% | 00.0% | Unchanged |
| Eagle Capital Management LLC | 470 | $276.5K | 0.00% | −320,284−99.9% | Reduced |
| Taylor Financial Group, Inc. | 475 | $279.6K | 0.17% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 476 | $280.2K | 0.01% | +476 | New |
| Fideuram Asset Management (Ireland) dac | 404 | $281.1K | 0.04% | +330+445.9% | Added |
| Adviser Investments LLC | 479 | $282.0K | 0.00% | +19+4.1% | Added |
| Icon Wealth Advisors, LLC | 462 | $283.1K | 0.02% | +45+10.8% | Added |
| First Horizon Corp | 481 | $283.2K | 0.01% | +2+0.4% | Added |
| Insigneo Advisory Services, LLC | 481 | $283.2K | 0.02% | −21−4.2% | Reduced |
| Select Asset Management & Trust | 484 | $285.0K | 0.09% | 00.0% | Unchanged |
| Ci Investments Inc. | 486 | $286.1K | 0.00% | +2+0.4% | Added |
| Mutual Advisors, LLC | 489 | $288.0K | 0.01% | −5−1.0% | Reduced |
| Kingsview Wealth Management, LLC | 490 | $288.4K | 0.00% | +490 | New |
| WealthShield Partners, LLC | 491 | $289.0K | 0.03% | +491 | New |
| Fulton Bank, N.A. | 492 | $289.6K | 0.01% | +24+5.1% | Added |
| Mission Wealth Management, LP | 492 | $289.7K | 0.01% | −197−28.6% | Reduced |
| Citizens Business Bank | 493 | $290.2K | 0.05% | 00.0% | Unchanged |
| South Shore Capital Advisors | 493 | $290.2K | 0.21% | +170+52.6% | Added |
| Essex Financial Services, Inc. | 494 | $290.7K | 0.02% | +113+29.7% | Added |
| St. Nicholas Private Asset Management, Inc | 494 | $290.8K | 0.27% | 00.0% | Unchanged |
| AMG National Trust Bank | 495 | $291.2K | 0.01% | +17+3.6% | Added |
| Ironwood Investment Counsel, LLC | 495 | $291.5K | 0.04% | −4−0.8% | Reduced |
| City State Bank | 497 | $292.6K | 0.08% | 00.0% | Unchanged |
| Monetary Management Group Inc | 500 | $294.3K | 0.07% | 00.0% | Unchanged |
| Blueshift Asset Management, LLC | 507 | $298.5K | 0.09% | +507 | New |
| LexAurum Advisors, LLC | 509 | $299.7K | 0.04% | +509 | New |
| Resources Investment Advisors, LLC. | 510 | $300.5K | 0.00% | −171−25.1% | Reduced |
| Verus Capital Partners, LLC | 511 | $300.8K | 0.02% | −39−7.1% | Reduced |
| Edgestream Partners, L.P. | 513 | $302.0K | 0.01% | +513 | New |
| 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 |
| Geneos Wealth Management Inc. | 526 | $309.6K | 0.01% | 00.0% | Unchanged |
| Brookstone Capital Management | 527 | $310.0K | 0.00% | −71−11.9% | Reduced |
| Cresta Advisors, Ltd. | 529 | $311.4K | 0.13% | 00.0% | Unchanged |
| one8zero8, LLC | 536 | $315.5K | 0.07% | 00.0% | Unchanged |
| Cypress Wealth Services, LLC | 537 | $316.2K | 0.04% | +1+0.2% | Added |
| J. Safra Sarasin Holding AG | 539 | $317.3K | 0.01% | +13+2.5% | Added |
| Byrne Asset Management LLC | 540 | $317.9K | 0.19% | −32−5.6% | Reduced |
| Formidable Asset Management, LLC | 515 | $320.9K | 0.05% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 550 | $323.8K | 0.01% | 00.0% | Unchanged |
| Helen Stephens Group, LLC | 551 | $324.2K | 0.06% | +97+21.4% | Added |
| Atomi Financial Group, Inc. | 553 | $325.7K | 0.01% | −597−51.9% | Reduced |
| Empirical Asset Management, LLC | 554 | $326.0K | 0.09% | −2−0.4% | Reduced |
| PDS Planning, Inc | 554 | $326.1K | 0.02% | −5−0.9% | Reduced |
| Citizens Financial Group Inc | 554 | $326.3K | 0.00% | −534−49.1% | Reduced |
| First Citizens Financial Corp | 558 | $328.5K | 0.16% | +215+62.7% | Added |
| Western Wealth Management, LLC | 559 | $328.8K | 0.01% | +27+5.1% | Added |
| iA Global Asset Management Inc. | 560 | $330.0K | 0.00% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 548 | $334.4K | 0.01% | +13+2.4% | Added |
| Corsicana & Co. | 700 | $334.7K | 0.21% | 00.0% | Unchanged |
| Phoenix Holdings Ltd. | 569 | $335.0K | 0.00% | +107+23.2% | Added |
| Forum Financial Management, LP | 571 | $336.1K | 0.00% | −799−58.3% | Reduced |
| Cigna Investments Inc | 582 | $342.0K | 0.05% | 00.0% | Unchanged |
| Chilton Investment Co LLC | 581 | $342.0K | 0.01% | −18,100−96.9% | Reduced |
| Menard Financial Group LLC | 590 | $347.3K | 0.24% | −4−0.7% | Reduced |
| Ramirez Asset Management, Inc. | 590 | $347.3K | 0.04% | 00.0% | Unchanged |
| CM Wealth Advisors LLC | 595 | $350.3K | 0.07% | 00.0% | Unchanged |
| Robertson Stephens Wealth Management, LLC | 599 | $352.4K | 0.01% | +9+1.5% | Added |
| First Nebraska Trust Co | 608 | $357.9K | 0.03% | 00.0% | Unchanged |
| Compass Ion Advisors, LLC | 611 | $359.7K | 0.03% | −1−0.2% | Reduced |
| Norden Group LLC | 612 | $360.3K | 0.03% | −18−2.9% | Reduced |
| First Citizens Bank & Trust Co | 618 | $363.8K | 0.01% | +48+8.4% | Added |
| Choate Investment Advisors | 620 | $365.0K | 0.01% | +31+5.3% | Added |
| Gateway Wealth Partners, LLC | 623 | $366.7K | 0.01% | +623 | New |
| Mesirow Financial Investment Management, Inc. | 631 | $370.9K | 0.01% | +7+1.1% | Added |
| Prime Capital Investment Advisors, LLC | 635 | $374.0K | 0.00% | +50+8.5% | Added |
| WPWealth LLP | 637 | $375.0K | 0.06% | 00.0% | Unchanged |
| Advisor OS, LLC | 644 | $379.1K | 0.03% | +28+4.5% | Added |
| Defender Capital, LLC. | 650 | $382.6K | 0.14% | 00.0% | Unchanged |
| Massar Capital Management, LP | 650 | $382.6K | 0.08% | 00.0% | Unchanged |
| Ashton Thomas Private Wealth, LLC | 651 | $383.2K | 0.01% | +227+53.5% | Added |
| Motco | 653 | $384.4K | 0.04% | 00.0% | Unchanged |
| American Institute for Advanced Investment Management, LLP | 660 | $388.5K | 0.25% | 00.0% | Unchanged |
| Family Management Corp | 660 | $388.5K | 0.05% | −39−5.6% | Reduced |
| Arthur M. Cohen & Associates, LLC | 650 | $389.3K | 0.07% | +50+8.3% | Added |
| AlphaCore Capital LLC | 663 | $390.3K | 0.01% | +140+26.8% | Added |