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; 1,082 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, Q3 2026
Institutional positions in Martin Marietta Materials Inc as of Sep 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
Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.
- Institutional holders
- 617
- −12 vs. Q2 2026
- Shares held
- 15.3M
- −1.75M (−10.3%) vs. Q2 2026
- Total value
- $7.29B
- −$2.49B (−25.4%) vs. Q2 2026
- New holders
- 67
- 206 more added
- Sold out
- 79
- 221 more reduced
453 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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 | 1,082 | $34.2B |
| Q1 2026 | 1,081 | $34.3B |
| Q4 2025 | 1,120 | $37.1B |
| Q3 2025 | 1,055 | $36.7B |
| Q2 2025 | 1,000 | $32.8B |
| Q1 2025 | 954 | $28.5B |
| Q4 2024 | 994 | $30.5B |
| Q3 2024 | 949 | $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, Q3 2026
Shares, value and share of portfolio for each institution holding Martin Marietta Materials Inc; share changes are against Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Principal Financial Group Inc | 2,385,823 | $1.14B | 0.59% | +269,454+12.7% | Added |
| Geode Capital Management, LLC | 1,615,352 | $772.0M | 0.04% | +13,862+0.9% | Added |
| Victory Capital Management Inc | 1,232,499 | $591.4M | 0.33% | −550,933−30.9% | Reduced |
| FMR LLC | 1,152,951 | $553.2M | 0.02% | −1,039,652−47.4% | Reduced |
| Baillie Gifford & Co | 911,149 | $437.2M | 0.41% | −80,637−8.1% | Reduced |
| King Luther Capital Management Corp | 624,949 | $299.9M | 1.23% | −28,235−4.3% | Reduced |
| Dimensional Fund Advisors LP | 568,423 | $272.7M | 0.05% | −17,722−3.0% | Reduced |
| UBS Group AG | 514,704 | $247.0M | 0.04% | +124,275+31.8% | Added |
| Bank of New York Mellon Corp | 336,479 | $161.4M | 0.03% | −9,145−2.6% | Reduced |
| Davenport & Co LLC | 328,039 | $157.3M | 0.81% | −8,752−2.6% | Reduced |
| Amundi | 241,366 | $115.8M | 0.02% | −22,131−8.4% | Reduced |
| Great Lakes Advisors, LLC | 228,271 | $109.5M | 0.86% | +1,685+0.7% | Added |
| Deutsche Bank AG | 228,129 | $109.5M | 0.03% | +2,202+1.0% | Added |
| Mawer Investment Management Ltd. | 207,970 | $99.8M | 0.73% | −33,575−13.9% | Reduced |
| Diamond Hill Capital Management Inc | 196,379 | $94.2M | 1.03% | −17,526−8.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 156,007 | $74.9M | 0.04% | +8,620+5.8% | Added |
| McDonald Capital Investors Inc | 154,986 | $74.4M | 6.10% | +16,010+11.5% | Added |
| Nuveen, LLC | 140,507 | $67.4M | 0.02% | −32,923−19.0% | Reduced |
| Barclays PLC | 140,170 | $67.3M | 0.02% | +38,318+37.6% | Added |
| Steginsky Capital LLC | 135,021 | $64.8M | 10.62% | −3,528−2.5% | Reduced |
| SEI Investments Co | 130,803 | $62.8M | 0.06% | −6,127−4.5% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 124,654 | $59.8M | 0.03% | −4,736−3.7% | Reduced |
| Rhumbline Advisers | 112,500 | $54.0M | 0.04% | +1,851+1.7% | Added |
| Pictet Asset Management Holding SA | 102,581 | $49.2M | 0.05% | +20,445+24.9% | Added |
| Fenimore Asset Management Inc | 89,370 | $42.9M | 0.94% | +1,224+1.4% | Added |
| TimesSquare Capital Management, LLC | 86,670 | $41.6M | 0.68% | +13,359+18.2% | Added |
| Citigroup Inc | 79,690 | $38.2M | 0.02% | −4,057−4.8% | Reduced |
| Lazard Freres Gestion S.A.S. | 74,559 | $35.8M | 0.60% | −1,376−1.8% | Reduced |
| Fisher Funds Management LTD | 69,263 | $33.2M | 0.97% | +37,619+118.9% | Added |
| Public Sector Pension Investment Board | 63,063 | $29.9M | 0.07% | +53,339+548.5% | Added |
| Heritage Investors Management Corp | 61,317 | $29.4M | 0.83% | −1,863−2.9% | Reduced |
| Border to Coast Pensions Partnership Ltd | 61,230 | $29.3M | 0.40% | +5,646+10.2% | Added |
| Douglas Lane & Associates, LLC | 55,793 | $26.8M | 0.36% | +12,089+27.7% | Added |
| Voya Investment Management LLC | 54,700 | $26.2M | 0.02% | +34,207+166.9% | Added |
| Squarepoint Ops LLC | 50,526 | $24.2M | 0.05% | +47,669+1,668.5% | Added |
| Ofi Invest Asset Management | 57,112 | $24.2M | 0.24% | +14,415+33.8% | Added |
| Confluence Investment Management LLC | 49,097 | $23.6M | 0.39% | −3,110−6.0% | Reduced |
| Russell Investments Group, Ltd. | 48,308 | $23.2M | 0.02% | −34,947−42.0% | Reduced |
| LPL Financial LLC | 45,719 | $21.9M | 0.00% | −6,065−11.7% | Reduced |
| Blair William & Co | 45,292 | $21.7M | 0.06% | +2,804+6.6% | Added |
| Gateway Investment Advisers LLC | 45,225 | $21.7M | 0.20% | −218−0.5% | Reduced |
| Gradient Investments LLC | 43,906 | $21.1M | 0.30% | −5,653−11.4% | Reduced |
| HighTower Advisors, LLC | 42,464 | $20.4M | 0.02% | −6,113−12.6% | Reduced |
| Tran Capital Management, L.P. | 42,443 | $20.4M | 2.33% | −629−1.5% | Reduced |
| The PNC Financial Services Group, Inc. | 41,780 | $20.0M | 0.01% | +1,394+3.5% | Added |
| Savant Capital, LLC | 41,375 | $19.9M | 0.06% | +19,289+87.3% | Added |
| New York State Teachers Retirement System | 41,227 | $19.8M | 0.04% | 00.0% | Unchanged |
| STRS Ohio | 37,670 | $18.1M | 0.07% | −5,721−13.2% | Reduced |
| Handelsbanken Fonder AB | 36,819 | $17.7M | 0.05% | −576−1.5% | Reduced |
| Bank of Montreal | 35,719 | $17.1M | 0.01% | −7,555−17.5% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 35,115 | $16.9M | 0.03% | +2,597+8.0% | Added |
| Ceredex Value Advisors LLC | 35,161 | $16.9M | 0.53% | +35,161 | New |
| Congress Asset Management Co | 34,858 | $16.7M | 0.11% | −26,092−42.8% | Reduced |
| GW&K Investment Management, LLC | 34,827 | $16.7M | 0.14% | −256−0.7% | Reduced |
| Oppenheimer & Co Inc | 32,908 | $15.8M | 0.17% | +4,975+17.8% | Added |
| USS Investment Management Ltd | 32,563 | $15.6M | 0.06% | +12,763+64.5% | Added |
| Kornitzer Capital Management Inc | 31,830 | $15.3M | 0.32% | +2,339+7.9% | Added |
| Diversified Trust Co | 31,789 | $15.3M | 0.32% | +64+0.2% | Added |
| Williams Jones Wealth Management, LLC. | 29,825 | $14.3M | 0.16% | +8,078+37.1% | Added |
| Teachers Retirement System of the State of Kentucky | 27,928 | $13.4M | 0.09% | +5,000+21.8% | Added |
| Creative Planning | 27,039 | $13.0M | 0.01% | +2,986+12.4% | Added |
| Danske Bank A/S | 26,798 | $12.9M | 0.03% | −400−1.5% | Reduced |
| Asset Management One Co.,Ltd. | 25,910 | $12.4M | 0.03% | +470+1.8% | Added |
| GHP Investment Advisors, Inc. | 25,416 | $12.2M | 0.45% | +790+3.2% | Added |
| Standard Life Aberdeen plc | 23,989 | $11.5M | 0.02% | −453−1.9% | Reduced |
| KLP Kapitalforvaltning AS | 23,573 | $11.3M | 0.03% | +440+1.9% | Added |
| NorthCrest Asset Manangement, LLC | 22,831 | $11.0M | 0.26% | +156+0.7% | Added |
| CIBC Asset Management Inc | 22,346 | $10.7M | 0.02% | +71+0.3% | Added |
| Advisors Asset Management, Inc. | 33,290 | $10.4M | 0.17% | +12,605+60.9% | Added |
| Sapient Capital LLC | 20,780 | $9.97M | 0.13% | +80.0% | Added |
| DekaBank Deutsche Girozentrale | 19,983 | $9.65M | 0.01% | −157,541−88.7% | Reduced |
| Nykredit A/S | 19,959 | $9.58M | 0.03% | −2,328−10.4% | Reduced |
| Fifth Third Bancorp | 19,398 | $9.31M | 0.02% | −251−1.3% | Reduced |
| State of New Jersey Common Pension Fund D | 19,254 | $9.24M | 0.03% | 00.0% | Unchanged |
| Lansforsakringar Fondforvaltning AB (publ) | 18,129 | $8.70M | 0.04% | 00.0% | Unchanged |
| Coronation Fund Managers Ltd. | 17,572 | $8.43M | 0.32% | +17,572 | New |
| PensionDanmark Pensionsforsikringsaktieselskab | 17,432 | $8.36M | 0.07% | −100−0.6% | Reduced |
| Czech National Bank | 17,258 | $8.28M | 0.04% | +167+1.0% | Added |
| Assenagon Asset Management S.A. | 17,210 | $8.26M | 0.01% | −11,619−40.3% | Reduced |
| Daiwa Securities Group Inc. | 17,179 | $8.24M | 0.02% | −3,098−15.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 16,864 | $8.09M | 0.01% | +1,994+13.4% | Added |
| Arizona State Retirement System | 16,399 | $7.87M | 0.04% | −877−5.1% | Reduced |
| Truist Financial Corp | 16,334 | $7.84M | 0.01% | −756−4.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 15,542 | $7.46M | 0.01% | +358+2.4% | Added |
| State of Michigan Retirement System | 15,137 | $7.26M | 0.03% | −200−1.3% | Reduced |
| Covea Finance | 14,100 | $6.77M | 0.22% | −9,174−39.4% | Reduced |
| Mader & Shannon Wealth Management, Inc. | 13,925 | $6.68M | 2.77% | +260+1.9% | Added |
| IFM Investors Pty Ltd | 13,534 | $6.49M | 0.04% | −1,057−7.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 13,271 | $6.37M | 0.03% | +8+0.1% | Added |
| D.A. Davidson & Co. | 12,913 | $6.20M | 0.03% | −928−6.7% | Reduced |
| SEB Asset Management AB | 12,834 | $6.16M | 0.02% | +194+1.5% | Added |
| Retirement Systems of Alabama | 12,597 | $6.04M | 0.02% | −17−0.1% | Reduced |
| Robbins Farley LLC | 12,425 | $5.96M | 2.27% | +77+0.6% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 12,010 | $5.76M | 0.01% | −2,940−19.7% | Reduced |
| ProShare Advisors LLC | 11,515 | $5.53M | 0.01% | +249+2.2% | Added |
| Swiss Life Asset Management Ltd | 11,338 | $5.44M | 0.02% | +449+4.1% | Added |
| AMF Pensionsforsakring AB | 11,264 | $5.40M | 0.03% | +11,264 | New |
| TD Waterhouse Canada Inc. | 11,015 | $5.29M | 0.01% | +34+0.3% | Added |
| Y-Intercept (Hong Kong) Ltd | 10,844 | $5.20M | 0.11% | +9,536+729.1% | Added |
| Rakuten Investment Management, Inc. | 10,780 | $5.16M | 0.01% | +10,780 | New |