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, Q2 2026
Institutional positions in Martin Marietta Materials Inc as of Jun 30, 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
- 1,079
- +13 vs. Q1 2026
- Shares held
- 59.2M
- +954.3K (+1.6%) vs. Q1 2026
- Total value
- $34.2B
- −$107.1M (−0.3%) vs. Q1 2026
- New holders
- 110
- 363 more added
- Sold out
- 97
- 395 more reduced
11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mesirow Financial Investment Management, Inc. | 625 | $360.2K | 0.01% | −6−1.0% | Reduced |
| Advisor OS, LLC | 622 | $358.7K | 0.02% | −22−3.4% | Reduced |
| Compass Ion Advisors, LLC | 611 | $352.4K | 0.03% | 00.0% | Unchanged |
| Western Wealth Management, LLC | 611 | $352.1K | 0.01% | +52+9.3% | Added |
| First Nebraska Trust Co | 608 | $350.6K | 0.03% | 00.0% | Unchanged |
| Mosaic Family Wealth Partners, LLC | 607 | $350.1K | 0.02% | +607 | New |
| Clarendon Private LLC | 606 | $349.5K | 0.22% | −211−25.8% | Reduced |
| Brookstone Capital Management | 600 | $346.3K | 0.00% | +73+13.9% | Added |
| AlphaGrep UK Ltd | 599 | $345.4K | 0.11% | +599 | New |
| Ramirez Asset Management, Inc. | 590 | $340.3K | 0.04% | 00.0% | Unchanged |
| Spreng Capital Management, Inc. | 587 | $338.5K | 0.12% | −95−13.9% | Reduced |
| Forum Financial Management, LP | 571 | $329.3K | 0.00% | 00.0% | Unchanged |
| Empirical Asset Management, LLC | 571 | $329.0K | 0.07% | +17+3.1% | Added |
| Cigna Investments Inc | 563 | $325.0K | 0.04% | −19−3.3% | Reduced |
| Prime Capital Investment Advisors, LLC | 561 | $323.5K | 0.00% | −74−11.7% | Reduced |
| iA Global Asset Management Inc. | 560 | $323.0K | 0.00% | 00.0% | Unchanged |
| PDS Planning, Inc | 560 | $323.0K | 0.02% | +6+1.1% | Added |
| CM Wealth Advisors LLC | 557 | $321.2K | 0.06% | −38−6.4% | Reduced |
| J. Safra Sarasin Holding AG | 539 | $317.3K | 0.00% | 00.0% | Unchanged |
| Stonebridge Capital Management Inc | 550 | $317.2K | 0.15% | −425−43.6% | Reduced |
| S-Bank Fund Management Ltd | 546 | $314.9K | 0.04% | +546 | New |
| EverSource Wealth Advisors, LLC | 543 | $313.2K | 0.01% | +158+41.0% | Added |
| Byrne Asset Management LLC | 540 | $311.4K | 0.17% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 540 | $311.4K | 0.01% | +540 | New |
| Cypress Wealth Services, LLC | 536 | $309.2K | 0.04% | −1−0.2% | Reduced |
| one8zero8, LLC | 536 | $309.1K | 0.06% | 00.0% | Unchanged |
| Cresta Advisors, Ltd. | 529 | $305.1K | 0.11% | 00.0% | Unchanged |
| Formidable Asset Management, LLC | 516 | $303.5K | 0.05% | +1+0.2% | Added |
| Geneos Wealth Management Inc. | 526 | $303.3K | 0.01% | 00.0% | Unchanged |
| Helen Stephens Group, LLC | 524 | $302.2K | 0.05% | −27−4.9% | Reduced |
| First Citizens Financial Corp | 521 | $300.5K | 0.13% | −37−6.6% | Reduced |
| AMG National Trust Bank | 520 | $299.9K | 0.01% | +25+5.1% | Added |
| TRB Wealth Management, LLC | 520 | $299.9K | 0.04% | +170+48.6% | Added |
| Global Retirement Partners, LLC | 520 | $299.6K | 0.00% | +520 | New |
| Ameritas Investment Partners, Inc. | 519 | $299.3K | 0.01% | −31−5.6% | Reduced |
| WealthShield Partners, LLC | 519 | $299.3K | 0.05% | +28+5.7% | Added |
| Ariston Services Group | 516 | $297.6K | 0.16% | +516 | Added |
| N.E.W. Advisory Services LLC | 516 | $297.6K | 0.02% | 00.0% | Unchanged |
| LexAurum Advisors, LLC | 509 | $293.7K | 0.03% | 00.0% | Unchanged |
| Fulton Bank, N.A. | 509 | $293.5K | 0.01% | +17+3.5% | Added |
| Numerai GP LLC | 508 | $293.0K | 0.02% | −4,400−89.6% | Reduced |
| Ci Investments Inc. | 505 | $291.2K | 0.00% | +19+3.9% | Added |
| Monetary Management Group Inc | 500 | $288.4K | 0.06% | 00.0% | Unchanged |
| Axxcess Wealth Management, LLC | 500 | $288.4K | 0.00% | +500 | New |
| City State Bank | 497 | $286.6K | 0.07% | 00.0% | Unchanged |
| St. Nicholas Private Asset Management, Inc | 494 | $284.9K | 0.25% | 00.0% | Unchanged |
| Ironwood Investment Counsel, LLC | 494 | $284.9K | 0.04% | −1−0.2% | Reduced |
| BIP Wealth, LLC | 494 | $284.7K | 0.01% | +45+10.0% | Added |
| South Shore Capital Advisors | 493 | $284.3K | 0.19% | 00.0% | Unchanged |
| Citizens Business Bank | 493 | $284.3K | 0.04% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 493 | $284.3K | 0.00% | +493 | New |
| Chicago Partners Investment Group LLC | 515 | $281.8K | 0.01% | −33−6.0% | Reduced |
| Stevens Capital Management LP | 485 | $280.0K | 0.07% | +485 | New |
| Select Asset Management & Trust | 484 | $279.0K | 0.08% | 00.0% | Unchanged |
| Verus Capital Partners, LLC | 481 | $277.4K | 0.02% | −30−5.9% | Reduced |
| Adviser Investments LLC | 480 | $277.0K | 0.00% | +1+0.2% | Added |
| Retirement Planning Group | 480 | $276.9K | 0.01% | +11+2.3% | Added |
| Castleark Management LLC | 480 | $276.8K | 0.01% | −1,280−72.7% | Reduced |
| Cypress Capital Group | 479 | $276.2K | 0.03% | +479 | New |
| Taylor Financial Group, Inc. | 475 | $273.9K | 0.15% | 00.0% | Unchanged |
| Essex Financial Services, Inc. | 472 | $272.1K | 0.01% | −22−4.5% | Reduced |
| Sunbeam Capital Management, LLC | 470 | $271.3K | 0.12% | +12+2.6% | Added |
| Teza Capital Management LLC | 466 | $268.7K | 0.52% | +466 | New |
| Heritage Trust Co | 462 | $266.4K | 0.02% | 00.0% | Unchanged |
| Allianz SE | 460 | $265.3K | 0.00% | 00.0% | Unchanged |
| Wealthspire Advisors, LLC | 453 | $261.3K | 0.00% | +107+30.9% | Added |
| Aureus Asset Management, LLC | 450 | $259.5K | 0.02% | 00.0% | Unchanged |
| Prospera Financial Services Inc | 439 | $253.3K | 0.00% | +22+5.3% | Added |
| First Citizens Bank & Trust Co | 438 | $252.6K | 0.00% | −180−29.1% | Reduced |
| Collective Family Office LLC | 435 | $250.9K | 0.05% | −5−1.1% | Reduced |
| Campion Asset Management LLC | 435 | $250.9K | 0.15% | 00.0% | Unchanged |
| Kingsview Wealth Management, LLC | 434 | $250.5K | 0.00% | −56−11.4% | Reduced |
| Pekin Hardy Strauss, Inc. | 433 | $249.7K | 0.02% | 00.0% | Unchanged |
| Pines Wealth Management, LLC | 432 | $249.1K | 0.07% | +39+9.9% | Added |
| Drive Wealth Management, LLC | 431 | $248.7K | 0.04% | −15−3.4% | Reduced |
| Patrick M Sweeney & Associates, Inc | 430 | $248.0K | 0.14% | 00.0% | Unchanged |
| Beaird Harris Wealth Management, LLC | 430 | $248.0K | 0.02% | +427+14,233.3% | Added |
| Howard Capital Management Inc. | 427 | $246.3K | 0.00% | +427 | New |
| Wealth Enhancement Trust Services, Inc. | 426 | $245.7K | 0.03% | +8+1.9% | Added |
| Breakwater Capital Group | 418 | $241.1K | 0.03% | 00.0% | Unchanged |
| Tred Avon Family Wealth, LLC | 418 | $241.1K | 0.07% | 00.0% | Unchanged |
| Optiver Holding B.V. | 418 | $241.1K | 0.00% | +418 | New |
| Johnson Investment Counsel Inc | 415 | $239.3K | 0.00% | −22−5.0% | Reduced |
| Flputnam Investment Management Co | 414 | $238.8K | 0.00% | −18−4.2% | Reduced |
| Heartwood Wealth Advisors LLC | 413 | $238.2K | 0.02% | 00.0% | Unchanged |
| Evolve Private Wealth, LLC | 404 | $232.9K | 0.01% | −675−62.6% | Reduced |
| Eagle Bay Advisors LLC | 403 | $232.5K | 0.17% | +30+8.0% | Added |
| Teamwork Financial Advisors, LLC | 402 | $231.8K | 0.02% | +2+0.5% | Added |
| Brighton Jones LLC | 401 | $231.3K | 0.00% | +401 | New |
| Mark Asset Management LP | 401 | $231.3K | 0.02% | −1,204−75.0% | Reduced |
| Teacher Retirement System of Texas | 400 | $230.7K | 0.00% | −499−55.5% | Reduced |
| Palisade Capital Management LLC | 400 | $230.7K | 0.01% | 00.0% | Unchanged |
| Marco Investment Management LLC | 400 | $230.7K | 0.02% | 00.0% | Unchanged |
| Charter Research & Investment Group, Inc. | 400 | $230.7K | 0.14% | 00.0% | Unchanged |
| DV Trading LLC | 400 | $230.7K | 0.02% | 00.0% | Unchanged |
| Delta Investment Management, LLC | 400 | $230.7K | 0.04% | 00.0% | Unchanged |
| West Family Investments, Inc. | 400 | $230.7K | 0.07% | +400 | New |
| Choate Investment Advisors | 399 | $230.1K | 0.00% | −221−35.6% | Reduced |
| Central Bank & Trust Co | 395 | $227.8K | 0.03% | 00.0% | Unchanged |
| Norden Group LLC | 390 | $224.9K | 0.02% | −222−36.3% | Reduced |