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 |
|---|---|---|---|---|---|
| Heritage Investors Management Corp | 62,239 | $36.6M | 1.11% | −1,538−2.4% | Reduced |
| Advisor Group Holdings, Inc. | 62,049 | $36.5M | 0.05% | −207−0.3% | Reduced |
| Citigroup Inc | 60,805 | $35.8M | 0.02% | −29,157−32.4% | Reduced |
| Quantinno Capital Management LP | 57,256 | $33.7M | 0.06% | +17,073+42.5% | Added |
| Confluence Investment Management LLC | 56,855 | $33.5M | 0.52% | −2,803−4.7% | Reduced |
| Janus Henderson Group PLC | 56,174 | $33.1M | 0.02% | −452−0.8% | Reduced |
| Stephens Inc | 56,111 | $33.0M | 0.41% | +4,785+9.3% | Added |
| Border to Coast Pensions Partnership Ltd | 55,584 | $32.8M | 0.55% | −25,003−31.0% | Reduced |
| Neuberger Berman Group LLC | 54,148 | $31.9M | 0.02% | +32,562+150.8% | Added |
| HighTower Advisors, LLC | 53,907 | $31.7M | 0.03% | −6,058−10.1% | Reduced |
| State Board of Administration of Florida Retirement System | 53,918 | $31.7M | 0.06% | −1,426−2.6% | Reduced |
| Fred Alger Management, LLC | 52,273 | $30.8M | 0.14% | −110,037−67.8% | Reduced |
| Aviva PLC | 52,019 | $30.6M | 0.05% | +1,448+2.9% | Added |
| LPL Financial LLC | 49,045 | $28.9M | 0.01% | +5,716+13.2% | Added |
| TCW Group Inc | 47,736 | $28.1M | 0.21% | +1,733+3.8% | Added |
| Credit Agricole S A | 47,647 | $28.0M | 0.09% | +1,772+3.9% | Added |
| Susquehanna Portfolio Strategies, LLC | 45,993 | $27.1M | 0.40% | +3,010+7.0% | Added |
| Gateway Investment Advisers LLC | 45,602 | $26.8M | 0.30% | −8,177−15.2% | Reduced |
| Stifel Financial Corp | 45,177 | $26.6M | 0.02% | −2,452−5.1% | Reduced |
| Tran Capital Management, L.P. | 43,889 | $25.8M | 3.55% | −10,264−19.0% | Reduced |
| Blair William & Co | 43,837 | $25.8M | 0.07% | +29,374+203.1% | Added |
| Waratah Capital Advisors Ltd. | 43,620 | $25.7M | 2.30% | +21,346+95.8% | Added |
| Ensign Peak Advisors, Inc | 42,898 | $25.3M | 0.05% | +25,175+142.0% | Added |
| Douglas Lane & Associates, LLC | 41,981 | $24.7M | 0.36% | −304−0.7% | Reduced |
| Gradient Investments LLC | 41,787 | $24.6M | 0.38% | −2,422−5.5% | Reduced |
| New York State Teachers Retirement System | 41,227 | $24.3M | 0.05% | 00.0% | Unchanged |
| Franklin Street Advisors Inc | 40,940 | $24.1M | 1.48% | +2,826+7.4% | Added |
| National Bank of Canada | 40,790 | $24.0M | 0.02% | +13,816+51.2% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 39,775 | $23.4M | 1.63% | −1,500−3.6% | Reduced |
| Great West Life Assurance Co | 39,558 | $23.4M | 0.04% | +459+1.2% | Added |
| STRS Ohio | 39,434 | $23.2M | 0.09% | −10,302−20.7% | Reduced |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 39,174 | $23.1M | 0.43% | +8,220+26.6% | Added |
| Captrust Financial Advisors | 38,557 | $22.7M | 0.04% | +5,248+15.8% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 38,432 | $22.6M | 0.22% | −2,120−5.2% | Reduced |
| Pictet Asset Management Holding SA | 37,286 | $21.9M | 0.02% | +1,577+4.4% | Added |
| The PNC Financial Services Group, Inc. | 36,938 | $21.7M | 0.01% | −2,022−5.2% | Reduced |
| American Century Companies Inc | 36,483 | $21.5M | 0.01% | −77,565−68.0% | Reduced |
| Ofi Invest Asset Management | 41,551 | $21.3M | 0.28% | −33,158−44.4% | Reduced |
| Assetmark, Inc | 35,787 | $21.1M | 0.04% | +6,301+21.4% | Added |
| GW&K Investment Management, LLC | 35,754 | $21.0M | 0.19% | −909−2.5% | Reduced |
| First Manhattan Co | 35,062 | $20.6M | 0.06% | −43−0.1% | Reduced |
| Kornitzer Capital Management Inc | 33,745 | $19.9M | 0.43% | −2,103−5.9% | Reduced |
| Peapack Gladstone Financial Corp | 32,688 | $19.2M | 0.25% | +1,214+3.9% | Added |
| Jennison Associates LLC | 32,303 | $19.0M | 0.01% | +2,373+7.9% | Added |
| State of Wisconsin Investment Board | 32,295 | $19.0M | 0.04% | +1,049+3.4% | Added |
| Stockbridge Partners LLC | 32,213 | $19.0M | 0.46% | +32,213 | New |
| Bank of Montreal | 32,075 | $18.9M | 0.01% | −7,730−19.4% | Reduced |
| Manufacturers Life Insurance Company, The | 31,971 | $18.8M | 0.02% | −2,616−7.6% | Reduced |
| Fisher Funds Management LTD | 31,643 | $18.6M | 0.55% | −26,307−45.4% | Reduced |
| Handelsbanken Fonder AB | 31,615 | $18.6M | 0.06% | −427−1.3% | Reduced |
| Rather & Kittrell, Inc. | 31,554 | $18.6M | 2.87% | +60.0% | Added |
| Chevy Chase Trust Holdings, Inc. | 30,940 | $18.2M | 0.05% | −896−2.8% | Reduced |
| Coalescence Partners Investment Management, LP | 30,716 | $18.1M | 3.91% | +30,716 | New |
| Lathrop Investment Management Corp | 29,802 | $17.5M | 3.28% | −1,079−3.5% | Reduced |
| Oppenheimer & Co Inc | 29,562 | $17.4M | 0.21% | +593+2.0% | Added |
| Prudential Financial Inc | 29,347 | $17.3M | 0.02% | −31,726−51.9% | Reduced |
| Mariner, LLC | 28,599 | $16.8M | 0.02% | −12,510−30.4% | Reduced |
| Korea Investment CORP | 28,362 | $16.7M | 0.03% | −12,388−30.4% | Reduced |
| Vanguard Investments Australia, Ltd. | 28,168 | $16.6M | 0.05% | +28,168 | New |
| Danske Bank A/S | 27,758 | $16.3M | 0.04% | +1,800+6.9% | Added |
| Covea Finance | 26,874 | $15.8M | 0.55% | +4,000+17.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,702 | $15.7M | 0.03% | +328+1.2% | Added |
| Drummond Knight Asset Management Pty Ltd | 26,170 | $15.4M | 5.45% | −5,830−18.2% | Reduced |
| Exencial Wealth Advisors, LLC | 25,795 | $15.2M | 0.47% | −991−3.7% | Reduced |
| Treasurer of the State of North Carolina | 25,673 | $15.1M | 0.05% | +544+2.2% | Added |
| New York State Common Retirement Fund | 24,973 | $14.7M | 0.02% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 24,889 | $14.7M | 0.04% | −5,870−19.1% | Reduced |
| Standard Life Aberdeen plc | 24,525 | $14.4M | 0.02% | +518+2.2% | Added |
| Cerity Partners LLC | 24,507 | $14.4M | 0.02% | −1,288−5.0% | Reduced |
| Creative Planning | 24,025 | $14.1M | 0.01% | +889+3.8% | Added |
| Tredje AP-fonden | 23,799 | $14.0M | 0.08% | +18,331+335.2% | Added |
| Pathstone Holdings, LLC | 23,799 | $14.0M | 0.06% | −1,289−5.1% | Reduced |
| Mn Services Vermogensbeheer B.V. | 23,503 | $13.8M | 0.09% | 00.0% | Unchanged |
| Assenagon Asset Management S.A. | 23,501 | $13.8M | 0.02% | +5,304+29.1% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 22,745 | $13.4M | 0.03% | +445+2.0% | Added |
| GHP Investment Advisors, Inc. | 22,643 | $13.3M | 0.55% | +1,604+7.6% | Added |
| Ycg, LLC | 22,622 | $13.3M | 1.21% | +2,113+10.3% | Added |
| CIBC Asset Management Inc | 22,555 | $13.3M | 0.03% | +522+2.4% | Added |
| NorthCrest Asset Manangement, LLC | 21,822 | $13.0M | 0.41% | −7,863−26.5% | Reduced |
| Whittier Trust Co | 21,748 | $13.0M | 0.15% | +1,680+8.4% | Added |
| Gotham Asset Management, LLC | 21,970 | $12.9M | 0.04% | +7,085+47.6% | Added |
| Voya Investment Management LLC | 21,818 | $12.8M | 0.01% | +3,499+19.1% | Added |
| FIL Ltd | 21,744 | $12.8M | 0.01% | −37,838−63.5% | Reduced |
| KLP Kapitalforvaltning AS | 21,693 | $12.8M | 0.05% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 21,321 | $12.6M | 0.04% | 00.0% | Unchanged |
| Williams Jones Wealth Management, LLC. | 21,198 | $12.5M | 0.15% | −132−0.6% | Reduced |
| GDS Wealth Management | 21,197 | $12.5M | 0.75% | +2,059+10.8% | Added |
| Nomura Asset Management Co Ltd | 21,169 | $12.5M | 0.03% | +881+4.3% | Added |
| Sapient Capital LLC | 21,153 | $12.4M | 0.19% | −5,728−21.3% | Reduced |
| Fifth Third Bancorp | 21,099 | $12.4M | 0.02% | +13,054+162.3% | Added |
| Advisors Asset Management, Inc. | 21,036 | $12.4M | 0.21% | +1,051+5.3% | Added |
| Daiwa Securities Group Inc. | 20,681 | $12.2M | 0.04% | −1,678−7.5% | Reduced |
| First Trust Advisors LP | 20,309 | $12.0M | 0.01% | −3,697−15.4% | Reduced |
| State of New Jersey Common Pension Fund D | 20,299 | $11.9M | 0.05% | 00.0% | Unchanged |
| Toronto Dominion Bank | 19,813 | $11.7M | 0.02% | −2,492−11.2% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 19,795 | $11.7M | 0.04% | +69+0.3% | Added |
| Sagefield Capital LP | 19,642 | $11.6M | 0.83% | −143−0.7% | Reduced |
| Toroso Investments, LLC | 19,596 | $11.5M | 0.04% | +12,086+160.9% | Added |
| Teachers Retirement System of the State of Kentucky | 19,428 | $11.4M | 0.09% | −2,320−10.7% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 19,317 | $11.4M | 0.06% | −192−1.0% | Reduced |