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 |
|---|---|---|---|---|---|
| Ycg, LLC | 22,622 | $13.3M | 1.21% | +2,113+10.3% | Added |
| GHP Investment Advisors, Inc. | 22,643 | $13.3M | 0.55% | +1,604+7.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 22,745 | $13.4M | 0.03% | +445+2.0% | Added |
| Assenagon Asset Management S.A. | 23,501 | $13.8M | 0.02% | +5,304+29.1% | Added |
| Mn Services Vermogensbeheer B.V. | 23,503 | $13.8M | 0.09% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 23,799 | $14.0M | 0.06% | −1,289−5.1% | Reduced |
| Tredje AP-fonden | 23,799 | $14.0M | 0.08% | +18,331+335.2% | Added |
| Creative Planning | 24,025 | $14.1M | 0.01% | +889+3.8% | Added |
| Cerity Partners LLC | 24,507 | $14.4M | 0.02% | −1,288−5.0% | Reduced |
| Standard Life Aberdeen plc | 24,525 | $14.4M | 0.02% | +518+2.2% | Added |
| Asset Management One Co.,Ltd. | 24,889 | $14.7M | 0.04% | −5,870−19.1% | Reduced |
| New York State Common Retirement Fund | 24,973 | $14.7M | 0.02% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 25,673 | $15.1M | 0.05% | +544+2.2% | Added |
| Exencial Wealth Advisors, LLC | 25,795 | $15.2M | 0.47% | −991−3.7% | Reduced |
| Drummond Knight Asset Management Pty Ltd | 26,170 | $15.4M | 5.45% | −5,830−18.2% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 26,702 | $15.7M | 0.03% | +328+1.2% | Added |
| Covea Finance | 26,874 | $15.8M | 0.55% | +4,000+17.5% | Added |
| Danske Bank A/S | 27,758 | $16.3M | 0.04% | +1,800+6.9% | Added |
| Vanguard Investments Australia, Ltd. | 28,168 | $16.6M | 0.05% | +28,168 | New |
| Korea Investment CORP | 28,362 | $16.7M | 0.03% | −12,388−30.4% | Reduced |
| Mariner, LLC | 28,599 | $16.8M | 0.02% | −12,510−30.4% | Reduced |
| Prudential Financial Inc | 29,347 | $17.3M | 0.02% | −31,726−51.9% | Reduced |
| Oppenheimer & Co Inc | 29,562 | $17.4M | 0.21% | +593+2.0% | Added |
| Lathrop Investment Management Corp | 29,802 | $17.5M | 3.28% | −1,079−3.5% | Reduced |
| Coalescence Partners Investment Management, LP | 30,716 | $18.1M | 3.91% | +30,716 | New |
| Chevy Chase Trust Holdings, Inc. | 30,940 | $18.2M | 0.05% | −896−2.8% | Reduced |
| Rather & Kittrell, Inc. | 31,554 | $18.6M | 2.87% | +60.0% | Added |
| Handelsbanken Fonder AB | 31,615 | $18.6M | 0.06% | −427−1.3% | Reduced |
| Fisher Funds Management LTD | 31,643 | $18.6M | 0.55% | −26,307−45.4% | Reduced |
| Manufacturers Life Insurance Company, The | 31,971 | $18.8M | 0.02% | −2,616−7.6% | Reduced |
| Bank of Montreal | 32,075 | $18.9M | 0.01% | −7,730−19.4% | Reduced |
| Stockbridge Partners LLC | 32,213 | $19.0M | 0.46% | +32,213 | New |
| State of Wisconsin Investment Board | 32,295 | $19.0M | 0.04% | +1,049+3.4% | Added |
| Jennison Associates LLC | 32,303 | $19.0M | 0.01% | +2,373+7.9% | Added |
| Peapack Gladstone Financial Corp | 32,688 | $19.2M | 0.25% | +1,214+3.9% | Added |
| Kornitzer Capital Management Inc | 33,745 | $19.9M | 0.43% | −2,103−5.9% | Reduced |
| First Manhattan Co | 35,062 | $20.6M | 0.06% | −43−0.1% | Reduced |
| GW&K Investment Management, LLC | 35,754 | $21.0M | 0.19% | −909−2.5% | Reduced |
| Assetmark, Inc | 35,787 | $21.1M | 0.04% | +6,301+21.4% | Added |
| Ofi Invest Asset Management | 41,551 | $21.3M | 0.28% | −33,158−44.4% | Reduced |
| American Century Companies Inc | 36,483 | $21.5M | 0.01% | −77,565−68.0% | Reduced |
| The PNC Financial Services Group, Inc. | 36,938 | $21.7M | 0.01% | −2,022−5.2% | Reduced |
| Pictet Asset Management Holding SA | 37,286 | $21.9M | 0.02% | +1,577+4.4% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 38,432 | $22.6M | 0.22% | −2,120−5.2% | Reduced |
| Captrust Financial Advisors | 38,557 | $22.7M | 0.04% | +5,248+15.8% | Added |
| 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 |
| STRS Ohio | 39,434 | $23.2M | 0.09% | −10,302−20.7% | Reduced |
| Great West Life Assurance Co | 39,558 | $23.4M | 0.04% | +459+1.2% | Added |
| Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management | 39,775 | $23.4M | 1.63% | −1,500−3.6% | Reduced |
| National Bank of Canada | 40,790 | $24.0M | 0.02% | +13,816+51.2% | Added |
| Franklin Street Advisors Inc | 40,940 | $24.1M | 1.48% | +2,826+7.4% | Added |
| New York State Teachers Retirement System | 41,227 | $24.3M | 0.05% | 00.0% | Unchanged |
| Gradient Investments LLC | 41,787 | $24.6M | 0.38% | −2,422−5.5% | Reduced |
| Douglas Lane & Associates, LLC | 41,981 | $24.7M | 0.36% | −304−0.7% | Reduced |
| Ensign Peak Advisors, Inc | 42,898 | $25.3M | 0.05% | +25,175+142.0% | Added |
| Waratah Capital Advisors Ltd. | 43,620 | $25.7M | 2.30% | +21,346+95.8% | Added |
| Blair William & Co | 43,837 | $25.8M | 0.07% | +29,374+203.1% | Added |
| Tran Capital Management, L.P. | 43,889 | $25.8M | 3.55% | −10,264−19.0% | Reduced |
| Stifel Financial Corp | 45,177 | $26.6M | 0.02% | −2,452−5.1% | Reduced |
| Gateway Investment Advisers LLC | 45,602 | $26.8M | 0.30% | −8,177−15.2% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 45,993 | $27.1M | 0.40% | +3,010+7.0% | Added |
| Credit Agricole S A | 47,647 | $28.0M | 0.09% | +1,772+3.9% | Added |
| TCW Group Inc | 47,736 | $28.1M | 0.21% | +1,733+3.8% | Added |
| LPL Financial LLC | 49,045 | $28.9M | 0.01% | +5,716+13.2% | Added |
| Aviva PLC | 52,019 | $30.6M | 0.05% | +1,448+2.9% | Added |
| Fred Alger Management, LLC | 52,273 | $30.8M | 0.14% | −110,037−67.8% | Reduced |
| State Board of Administration of Florida Retirement System | 53,918 | $31.7M | 0.06% | −1,426−2.6% | Reduced |
| HighTower Advisors, LLC | 53,907 | $31.7M | 0.03% | −6,058−10.1% | Reduced |
| Neuberger Berman Group LLC | 54,148 | $31.9M | 0.02% | +32,562+150.8% | Added |
| Border to Coast Pensions Partnership Ltd | 55,584 | $32.8M | 0.55% | −25,003−31.0% | Reduced |
| Stephens Inc | 56,111 | $33.0M | 0.41% | +4,785+9.3% | Added |
| Janus Henderson Group PLC | 56,174 | $33.1M | 0.02% | −452−0.8% | Reduced |
| Confluence Investment Management LLC | 56,855 | $33.5M | 0.52% | −2,803−4.7% | Reduced |
| Quantinno Capital Management LP | 57,256 | $33.7M | 0.06% | +17,073+42.5% | Added |
| Citigroup Inc | 60,805 | $35.8M | 0.02% | −29,157−32.4% | Reduced |
| Advisor Group Holdings, Inc. | 62,049 | $36.5M | 0.05% | −207−0.3% | Reduced |
| Heritage Investors Management Corp | 62,239 | $36.6M | 1.11% | −1,538−2.4% | Reduced |
| Harvey Partners, LLC | 63,925 | $37.6M | 3.06% | +12,790+25.0% | Added |
| AQR Capital Management LLC | 65,460 | $37.6M | 0.02% | −34,319−34.4% | Reduced |
| Gilder Gagnon Howe & Co LLC | 69,173 | $40.7M | 0.49% | −9,380−11.9% | Reduced |
| California State Teachers Retirement System | 70,152 | $41.3M | 0.04% | −1,703−2.4% | Reduced |
| Woodline Partners LP | 70,938 | $41.8M | 0.16% | +69,835+6,331.4% | Added |
| Canada Pension Plan Investment Board | 71,583 | $42.1M | 0.03% | +35,289+97.2% | Added |
| TimesSquare Capital Management, LLC | 73,299 | $43.1M | 0.73% | −17,795−19.5% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 75,476 | $44.4M | 0.11% | −12,310−14.0% | Reduced |
| Alliancebernstein L.P. | 74,585 | $46.4M | 0.02% | +3,151+4.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 78,894 | $46.4M | 0.05% | +55,233+233.4% | Added |
| Spears Abacus Advisors LLC | 81,257 | $47.8M | 0.94% | +28,549+54.2% | Added |
| Lazard Freres Gestion S.A.S. | 81,690 | $48.1M | 0.95% | +661+0.8% | Added |
| Jones Financial Companies LLLP | 84,623 | $48.3M | 0.02% | +81,760+2,855.7% | Added |
| BNP Paribas Arbitrage, SA | 82,360 | $48.5M | 0.03% | −35,389−30.1% | Reduced |
| Glenmede Trust Co NA | 84,752 | $49.9M | 0.25% | −4,278−4.8% | Reduced |
| Fenimore Asset Management Inc | 88,327 | $52.0M | 1.16% | −1,601−1.8% | Reduced |
| TD Asset Management Inc | 88,796 | $52.3M | 0.04% | −3,720−4.0% | Reduced |
| National Pension Service | 89,482 | $52.7M | 0.04% | +875+1.0% | Added |
| Quantum Capital Management, LLC | 90,394 | $53.2M | 6.81% | +90,394 | New |
| One Madison Group LLC | 91,000 | $53.6M | 6.19% | +26,000+40.0% | Added |
| Arrowstreet Capital, Limited Partnership | 91,519 | $53.9M | 0.03% | −46,515−33.7% | Reduced |
| Russell Investments Group, Ltd. | 92,175 | $54.2M | 0.06% | +2,709+3.0% | Added |
| Interval Partners, LP | 94,172 | $55.4M | 1.91% | −112,998−54.5% | Reduced |