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 |
|---|---|---|---|---|---|
| Covea Finance | 23,274 | $13.4M | 0.42% | −3,600−13.4% | Reduced |
| Eurizon Capital SGR S.p.A. | 23,494 | $13.6M | 0.04% | +12,169+107.5% | Added |
| Interval Partners, LP | 23,683 | $13.7M | 0.44% | −70,489−74.9% | Reduced |
| Creative Planning | 24,053 | $13.9M | 0.01% | +28+0.1% | Added |
| Standard Life Aberdeen plc | 24,442 | $14.1M | 0.02% | −83−0.3% | Reduced |
| GHP Investment Advisors, Inc. | 24,626 | $14.2M | 0.52% | +1,983+8.8% | Added |
| National Bank of Canada | 24,769 | $14.3M | 0.01% | −16,021−39.3% | Reduced |
| New York State Common Retirement Fund | 24,973 | $14.4M | 0.02% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 25,440 | $14.7M | 0.04% | +551+2.2% | Added |
| Citadel Advisors LLC | 25,897 | $14.9M | 0.01% | +9,167+54.8% | Added |
| Suvretta Capital Management, LLC | 26,000 | $15.0M | 0.32% | +26,000 | New |
| Korea Investment CORP | 26,154 | $15.1M | 0.03% | −2,208−7.8% | Reduced |
| Assetmark, Inc | 26,378 | $15.2M | 0.03% | −9,409−26.3% | Reduced |
| Fourth Sail Capital LP | 27,000 | $15.6M | 2.36% | +27,000 | New |
| Danske Bank A/S | 27,198 | $15.7M | 0.03% | −560−2.0% | Reduced |
| GDS Wealth Management | 27,304 | $15.7M | 0.75% | +6,107+28.8% | Added |
| Oppenheimer & Co Inc | 27,933 | $16.1M | 0.17% | −1,629−5.5% | Reduced |
| Vanguard Investments Australia, Ltd. | 28,744 | $16.6M | 0.04% | +576+2.0% | Added |
| Assenagon Asset Management S.A. | 28,829 | $16.6M | 0.02% | +5,328+22.7% | Added |
| Prudential Financial Inc | 28,877 | $16.7M | 0.02% | −470−1.6% | Reduced |
| Lathrop Investment Management Corp | 29,198 | $16.8M | 2.98% | −604−2.0% | Reduced |
| Kornitzer Capital Management Inc | 29,491 | $17.0M | 0.36% | −4,254−12.6% | Reduced |
| Cinctive Capital Management LP | 29,991 | $17.3M | 0.69% | +29,991 | New |
| Franklin Street Advisors Inc | 30,038 | $17.3M | 0.97% | −10,902−26.6% | Reduced |
| Manufacturers Life Insurance Company, The | 30,157 | $17.4M | 0.01% | −1,814−5.7% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 30,294 | $17.5M | 0.05% | −646−2.1% | Reduced |
| Treasurer of the State of North Carolina | 30,618 | $17.7M | 0.05% | +4,945+19.3% | Added |
| Ycg, LLC | 31,544 | $18.2M | 1.60% | +8,922+39.4% | Added |
| Rather & Kittrell, Inc. | 31,554 | $18.2M | 2.54% | 00.0% | Unchanged |
| Fisher Funds Management LTD | 31,644 | $18.2M | 0.52% | +10.0% | Added |
| Diversified Trust Co | 31,725 | $18.3M | 0.29% | +25,982+452.4% | Added |
| American Century Companies Inc | 31,795 | $18.3M | 0.01% | −4,688−12.8% | Reduced |
| Renaissance Technologies LLC | 31,894 | $18.4M | 0.03% | +31,894 | New |
| State of Wisconsin Investment Board | 32,132 | $18.5M | 0.04% | −163−0.5% | Reduced |
| Peapack Gladstone Financial Corp | 32,471 | $18.7M | 0.22% | −217−0.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 32,518 | $18.8M | 0.03% | +5,816+21.8% | Added |
| Ensign Peak Advisors, Inc | 33,273 | $19.2M | 0.03% | −9,625−22.4% | Reduced |
| Captrust Financial Advisors | 34,256 | $19.8M | 0.03% | −4,301−11.2% | Reduced |
| GW&K Investment Management, LLC | 35,083 | $20.2M | 0.16% | −671−1.9% | Reduced |
| First Manhattan Co | 35,200 | $20.3M | 0.05% | +138+0.4% | Added |
| Jones Financial Companies LLLP | 34,330 | $21.1M | 0.01% | −50,293−59.4% | Reduced |
| Gotham Asset Management, LLC | 36,670 | $21.1M | 0.05% | +14,700+66.9% | Added |
| Handelsbanken Fonder AB | 37,395 | $21.6M | 0.06% | +5,780+18.3% | Added |
| Eventide Asset Management, LLC | 37,385 | $21.6M | 0.29% | +34,477+1,185.6% | Added |
| Advisor Group Holdings, Inc. | 37,508 | $21.6M | 0.03% | −24,541−39.6% | Reduced |
| Ofi Invest Asset Management | 42,697 | $21.7M | 0.22% | +1,146+2.8% | Added |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 39,174 | $22.6M | 0.40% | 00.0% | Unchanged |
| Great West Life Assurance Co | 39,237 | $22.6M | 0.04% | −321−0.8% | Reduced |
| Waratah Capital Advisors Ltd. | 40,094 | $23.1M | 1.78% | −3,526−8.1% | Reduced |
| The PNC Financial Services Group, Inc. | 40,386 | $23.3M | 0.01% | +3,448+9.3% | Added |
| New York State Teachers Retirement System | 41,227 | $23.8M | 0.04% | 00.0% | Unchanged |
| Stockbridge Partners LLC | 42,450 | $24.5M | 0.52% | +10,237+31.8% | Added |
| Blair William & Co | 42,488 | $24.5M | 0.06% | −1,349−3.1% | Reduced |
| Tran Capital Management, L.P. | 43,072 | $24.8M | 2.86% | −817−1.9% | Reduced |
| Bank of Montreal | 43,274 | $25.0M | 0.01% | +11,199+34.9% | Added |
| STRS Ohio | 43,391 | $25.0M | 0.09% | +3,957+10.0% | Added |
| Douglas Lane & Associates, LLC | 43,704 | $25.2M | 0.34% | +1,723+4.1% | Added |
| Stifel Financial Corp | 45,050 | $26.0M | 0.02% | −127−0.3% | Reduced |
| Gateway Investment Advisers LLC | 45,443 | $26.2M | 0.26% | −159−0.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 46,785 | $27.0M | 0.01% | −44,734−48.9% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 47,370 | $27.3M | 1.89% | +7,595+19.1% | Added |
| Neuberger Berman Group LLC | 47,643 | $27.5M | 0.02% | −6,505−12.0% | Reduced |
| HighTower Advisors, LLC | 48,577 | $28.0M | 0.03% | −5,330−9.9% | Reduced |
| Gradient Investments LLC | 49,559 | $28.6M | 0.39% | +7,772+18.6% | Added |
| Natixis Advisors, L.P. | 50,291 | $29.0M | 0.03% | −51,188−50.4% | Reduced |
| Two Sigma Investments, LP | 51,433 | $29.7M | 0.02% | −42,780−45.4% | Reduced |
| LPL Financial LLC | 51,784 | $29.9M | 0.01% | +2,739+5.6% | Added |
| Spears Abacus Advisors LLC | 52,150 | $30.1M | 0.53% | −29,107−35.8% | Reduced |
| Aviva PLC | 52,191 | $30.1M | 0.04% | +172+0.3% | Added |
| Confluence Investment Management LLC | 52,207 | $30.1M | 0.47% | −4,648−8.2% | Reduced |
| State Board of Administration of Florida Retirement System | 52,736 | $30.4M | 0.05% | −1,182−2.2% | Reduced |
| Stephens Inc | 53,993 | $31.1M | 0.35% | −2,118−3.8% | Reduced |
| Millennium Management LLC | 54,131 | $31.2M | 0.02% | +39,270+264.2% | Added |
| Border to Coast Pensions Partnership Ltd | 55,584 | $32.0M | 0.47% | 00.0% | Unchanged |
| Credit Agricole S A | 55,620 | $32.1M | 0.08% | +7,973+16.7% | Added |
| Jupiter Topco LLC | 56,106 | $32.4M | 0.01% | +56,106 | New |
| Quantinno Capital Management LP | 59,516 | $34.3M | 0.04% | +2,260+3.9% | Added |
| One Madison Group LLC | 60,000 | $34.6M | 3.33% | −31,000−34.1% | Reduced |
| Congress Asset Management Co | 60,950 | $35.1M | 0.22% | −177,021−74.4% | Reduced |
| Heritage Investors Management Corp | 63,180 | $36.4M | 1.01% | +941+1.5% | Added |
| Ameriprise Financial Inc | 64,342 | $37.1M | 0.01% | −43,229−40.2% | Reduced |
| Bornite Capital Management LP | 65,200 | $37.6M | 4.73% | +65,200 | New |
| Alliancebernstein L.P. | 63,917 | $37.6M | 0.01% | −10,668−14.3% | Reduced |
| AQR Capital Management LLC | 67,001 | $38.6M | 0.01% | +1,541+2.4% | Added |
| Gilder Gagnon Howe & Co LLC | 68,114 | $39.3M | 0.41% | −1,059−1.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 70,684 | $40.8M | 0.09% | −4,792−6.3% | Reduced |
| TD Asset Management Inc | 71,200 | $41.1M | 0.04% | −17,596−19.8% | Reduced |
| TimesSquare Capital Management, LLC | 73,311 | $42.3M | 0.62% | +120.0% | Added |
| Lazard Freres Gestion S.A.S. | 75,935 | $43.8M | 0.76% | −5,755−7.0% | Reduced |
| Canada Pension Plan Investment Board | 77,015 | $44.4M | 0.02% | +5,432+7.6% | Added |
| California Public Employees Retirement System | 79,047 | $45.6M | 0.03% | −32,709−29.3% | Reduced |
| Pictet Asset Management Holding SA | 82,136 | $47.4M | 0.05% | +44,850+120.3% | Added |
| Glenmede Trust Co NA | 82,181 | $47.4M | 0.21% | −2,571−3.0% | Reduced |
| Russell Investments Group, Ltd. | 83,255 | $48.0M | 0.04% | −8,920−9.7% | Reduced |
| Citigroup Inc | 83,747 | $48.3M | 0.02% | +22,942+37.7% | Added |
| Harvey Partners, LLC | 87,035 | $50.2M | 3.48% | +23,110+36.2% | Added |
| Fenimore Asset Management Inc | 88,146 | $50.8M | 1.05% | −181−0.2% | Reduced |
| California State Teachers Retirement System | 88,562 | $51.1M | 0.05% | +18,410+26.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 90,018 | $51.9M | 0.05% | +11,124+14.1% | Added |
| BNP Paribas Arbitrage, SA | 91,559 | $52.8M | 0.03% | +9,199+11.2% | Added |