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 |
|---|---|---|---|---|---|
| Congress Asset Management Co | 60,950 | $35.1M | 0.22% | −177,021−74.4% | Reduced |
| One Madison Group LLC | 60,000 | $34.6M | 3.33% | −31,000−34.1% | Reduced |
| Quantinno Capital Management LP | 59,516 | $34.3M | 0.04% | +2,260+3.9% | Added |
| Jupiter Topco LLC | 56,106 | $32.4M | 0.01% | +56,106 | New |
| Credit Agricole S A | 55,620 | $32.1M | 0.08% | +7,973+16.7% | Added |
| Border to Coast Pensions Partnership Ltd | 55,584 | $32.0M | 0.47% | 00.0% | Unchanged |
| Millennium Management LLC | 54,131 | $31.2M | 0.02% | +39,270+264.2% | Added |
| Stephens Inc | 53,993 | $31.1M | 0.35% | −2,118−3.8% | Reduced |
| State Board of Administration of Florida Retirement System | 52,736 | $30.4M | 0.05% | −1,182−2.2% | Reduced |
| Confluence Investment Management LLC | 52,207 | $30.1M | 0.47% | −4,648−8.2% | Reduced |
| Aviva PLC | 52,191 | $30.1M | 0.04% | +172+0.3% | Added |
| Spears Abacus Advisors LLC | 52,150 | $30.1M | 0.53% | −29,107−35.8% | Reduced |
| LPL Financial LLC | 51,784 | $29.9M | 0.01% | +2,739+5.6% | Added |
| Two Sigma Investments, LP | 51,433 | $29.7M | 0.02% | −42,780−45.4% | Reduced |
| Natixis Advisors, L.P. | 50,291 | $29.0M | 0.03% | −51,188−50.4% | Reduced |
| Gradient Investments LLC | 49,559 | $28.6M | 0.39% | +7,772+18.6% | Added |
| HighTower Advisors, LLC | 48,577 | $28.0M | 0.03% | −5,330−9.9% | Reduced |
| Neuberger Berman Group LLC | 47,643 | $27.5M | 0.02% | −6,505−12.0% | Reduced |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 47,370 | $27.3M | 1.89% | +7,595+19.1% | Added |
| Arrowstreet Capital, Limited Partnership | 46,785 | $27.0M | 0.01% | −44,734−48.9% | Reduced |
| Gateway Investment Advisers LLC | 45,443 | $26.2M | 0.26% | −159−0.3% | Reduced |
| Stifel Financial Corp | 45,050 | $26.0M | 0.02% | −127−0.3% | Reduced |
| Douglas Lane & Associates, LLC | 43,704 | $25.2M | 0.34% | +1,723+4.1% | Added |
| STRS Ohio | 43,391 | $25.0M | 0.09% | +3,957+10.0% | Added |
| Bank of Montreal | 43,274 | $25.0M | 0.01% | +11,199+34.9% | Added |
| Tran Capital Management, L.P. | 43,072 | $24.8M | 2.86% | −817−1.9% | Reduced |
| Blair William & Co | 42,488 | $24.5M | 0.06% | −1,349−3.1% | Reduced |
| Stockbridge Partners LLC | 42,450 | $24.5M | 0.52% | +10,237+31.8% | Added |
| New York State Teachers Retirement System | 41,227 | $23.8M | 0.04% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 40,386 | $23.3M | 0.01% | +3,448+9.3% | Added |
| Waratah Capital Advisors Ltd. | 40,094 | $23.1M | 1.78% | −3,526−8.1% | Reduced |
| Great West Life Assurance Co | 39,237 | $22.6M | 0.04% | −321−0.8% | Reduced |
| 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 |
| Ofi Invest Asset Management | 42,697 | $21.7M | 0.22% | +1,146+2.8% | Added |
| Advisor Group Holdings, Inc. | 37,508 | $21.6M | 0.03% | −24,541−39.6% | Reduced |
| Eventide Asset Management, LLC | 37,385 | $21.6M | 0.29% | +34,477+1,185.6% | Added |
| Handelsbanken Fonder AB | 37,395 | $21.6M | 0.06% | +5,780+18.3% | Added |
| Gotham Asset Management, LLC | 36,670 | $21.1M | 0.05% | +14,700+66.9% | Added |
| Jones Financial Companies LLLP | 34,330 | $21.1M | 0.01% | −50,293−59.4% | Reduced |
| First Manhattan Co | 35,200 | $20.3M | 0.05% | +138+0.4% | Added |
| GW&K Investment Management, LLC | 35,083 | $20.2M | 0.16% | −671−1.9% | Reduced |
| Captrust Financial Advisors | 34,256 | $19.8M | 0.03% | −4,301−11.2% | Reduced |
| Ensign Peak Advisors, Inc | 33,273 | $19.2M | 0.03% | −9,625−22.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 32,518 | $18.8M | 0.03% | +5,816+21.8% | Added |
| Peapack Gladstone Financial Corp | 32,471 | $18.7M | 0.22% | −217−0.7% | Reduced |
| State of Wisconsin Investment Board | 32,132 | $18.5M | 0.04% | −163−0.5% | Reduced |
| Renaissance Technologies LLC | 31,894 | $18.4M | 0.03% | +31,894 | New |
| American Century Companies Inc | 31,795 | $18.3M | 0.01% | −4,688−12.8% | Reduced |
| Diversified Trust Co | 31,725 | $18.3M | 0.29% | +25,982+452.4% | Added |
| Fisher Funds Management LTD | 31,644 | $18.2M | 0.52% | +10.0% | Added |
| Rather & Kittrell, Inc. | 31,554 | $18.2M | 2.54% | 00.0% | Unchanged |
| Ycg, LLC | 31,544 | $18.2M | 1.60% | +8,922+39.4% | Added |
| Treasurer of the State of North Carolina | 30,618 | $17.7M | 0.05% | +4,945+19.3% | Added |
| Chevy Chase Trust Holdings, Inc. | 30,294 | $17.5M | 0.05% | −646−2.1% | Reduced |
| Manufacturers Life Insurance Company, The | 30,157 | $17.4M | 0.01% | −1,814−5.7% | Reduced |
| Franklin Street Advisors Inc | 30,038 | $17.3M | 0.97% | −10,902−26.6% | Reduced |
| Cinctive Capital Management LP | 29,991 | $17.3M | 0.69% | +29,991 | New |
| Kornitzer Capital Management Inc | 29,491 | $17.0M | 0.36% | −4,254−12.6% | Reduced |
| Lathrop Investment Management Corp | 29,198 | $16.8M | 2.98% | −604−2.0% | Reduced |
| Prudential Financial Inc | 28,877 | $16.7M | 0.02% | −470−1.6% | Reduced |
| Assenagon Asset Management S.A. | 28,829 | $16.6M | 0.02% | +5,328+22.7% | Added |
| Vanguard Investments Australia, Ltd. | 28,744 | $16.6M | 0.04% | +576+2.0% | Added |
| Oppenheimer & Co Inc | 27,933 | $16.1M | 0.17% | −1,629−5.5% | Reduced |
| GDS Wealth Management | 27,304 | $15.7M | 0.75% | +6,107+28.8% | Added |
| Danske Bank A/S | 27,198 | $15.7M | 0.03% | −560−2.0% | Reduced |
| Fourth Sail Capital LP | 27,000 | $15.6M | 2.36% | +27,000 | New |
| Assetmark, Inc | 26,378 | $15.2M | 0.03% | −9,409−26.3% | Reduced |
| Korea Investment CORP | 26,154 | $15.1M | 0.03% | −2,208−7.8% | Reduced |
| Suvretta Capital Management, LLC | 26,000 | $15.0M | 0.32% | +26,000 | New |
| Citadel Advisors LLC | 25,897 | $14.9M | 0.01% | +9,167+54.8% | Added |
| Asset Management One Co.,Ltd. | 25,440 | $14.7M | 0.04% | +551+2.2% | Added |
| New York State Common Retirement Fund | 24,973 | $14.4M | 0.02% | 00.0% | Unchanged |
| National Bank of Canada | 24,769 | $14.3M | 0.01% | −16,021−39.3% | Reduced |
| GHP Investment Advisors, Inc. | 24,626 | $14.2M | 0.52% | +1,983+8.8% | Added |
| Standard Life Aberdeen plc | 24,442 | $14.1M | 0.02% | −83−0.3% | Reduced |
| Creative Planning | 24,053 | $13.9M | 0.01% | +28+0.1% | Added |
| Interval Partners, LP | 23,683 | $13.7M | 0.44% | −70,489−74.9% | Reduced |
| Eurizon Capital SGR S.p.A. | 23,494 | $13.6M | 0.04% | +12,169+107.5% | Added |
| Covea Finance | 23,274 | $13.4M | 0.42% | −3,600−13.4% | Reduced |
| SailingStone Capital Partners LLC | 23,147 | $13.3M | 2.50% | +15,527+203.8% | Added |
| KLP Kapitalforvaltning AS | 23,133 | $13.3M | 0.04% | +1,440+6.6% | Added |
| Teachers Retirement System of the State of Kentucky | 22,928 | $13.2M | 0.09% | +3,500+18.0% | Added |
| Whittier Trust Co | 21,771 | $13.2M | 0.13% | +23+0.1% | Added |
| Fred Alger Management, LLC | 22,501 | $13.0M | 0.04% | −29,772−57.0% | Reduced |
| NorthCrest Asset Manangement, LLC | 22,675 | $13.0M | 0.33% | +853+3.9% | Added |
| Sagefield Capital LP | 22,336 | $12.9M | 0.96% | +2,694+13.7% | Added |
| Nykredit A/S | 22,287 | $12.9M | 0.05% | +22,287 | New |
| CIBC Asset Management Inc | 22,275 | $12.8M | 0.03% | −280−1.2% | Reduced |
| Pathstone Holdings, LLC | 22,017 | $12.7M | 0.04% | −1,782−7.5% | Reduced |
| Williams Jones Wealth Management, LLC. | 21,747 | $12.5M | 0.14% | +549+2.6% | Added |
| Cerity Partners LLC | 21,542 | $12.4M | 0.02% | −2,965−12.1% | Reduced |
| Savant Capital, LLC | 22,086 | $12.4M | 0.04% | +19,627+798.2% | Added |
| Nomura Asset Management Co Ltd | 21,318 | $12.3M | 0.03% | +149+0.7% | Added |
| Susquehanna International Group, LLP | 21,305 | $12.3M | 0.01% | +13,057+158.3% | Added |
| State of Tennessee, Treasury Department | 21,181 | $12.2M | 0.04% | −140−0.7% | Reduced |
| Sapient Capital LLC | 20,772 | $12.0M | 0.16% | −381−1.8% | Reduced |
| Advisors Asset Management, Inc. | 20,685 | $11.9M | 0.18% | −351−1.7% | Reduced |
| TriCert Investment Counsel Inc. | 20,613 | $11.9M | 1.11% | +20,613 | New |
| Voya Investment Management LLC | 20,493 | $11.8M | 0.01% | −1,325−6.1% | Reduced |
| Daiwa Securities Group Inc. | 20,277 | $11.7M | 0.03% | −404−2.0% | Reduced |