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 | $34.4B |
| Q4 2025 | 1,118 | $37.7B |
| Q3 2025 | 1,053 | $38.5B |
| Q2 2025 | 999 | $32.9B |
| Q1 2025 | 953 | $28.5B |
| Q4 2024 | 992 | $30.5B |
| Q3 2024 | 948 | $33.8B |
| Q2 2024 | 940 | $33.4B |
| Q1 2024 | 957 | $38.7B |
| Q4 2023 | 889 | $30.7B |
| Q3 2023 | 815 | $24.2B |
| Q2 2023 | 804 | $27.5B |
| Q1 2023 | 746 | $21.3B |
| Q4 2022 | 768 | $19.7B |
| Q3 2022 | 736 | $18.9B |
| Q2 2022 | 728 | $17.5B |
| Q1 2022 | 763 | $22.8B |
| Q4 2021 | 775 | $25.7B |
| Q3 2021 | 700 | $19.7B |
| Q2 2021 | 696 | $20.3B |
| Q1 2021 | 692 | $19.5B |
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 |
|---|---|---|---|---|---|
| Investment Management Corp of Ontario | 3,843 | $2.22M | 0.03% | −1,564−28.9% | Reduced |
| Third View Private Wealth, LLC | 3,861 | $2.23M | 0.27% | −116−2.9% | Reduced |
| Baker Avenue Asset Management, LP | 3,892 | $2.24M | 0.04% | +889+29.6% | Added |
| Lipe & Dalton | 3,963 | $2.29M | 1.06% | 00.0% | Unchanged |
| Polymer Capital Management (US) LLC | 4,012 | $2.31M | 0.34% | −946−19.1% | Reduced |
| Sage Investment Advisers LLC | 4,085 | $2.36M | 1.58% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 4,096 | $2.36M | 0.12% | +4,096 | New |
| Saudi Central Bank | 4,218 | $2.43M | 0.03% | +1,992+89.5% | Added |
| Delta Global Management LP | 4,230 | $2.44M | 0.26% | +4,230 | New |
| Legacy Financial Independent Advisors LLC | 4,246 | $2.45M | 1.15% | +4,246 | New |
| Azzad Asset Management Inc | 4,459 | $2.57M | 0.23% | −3−0.1% | Reduced |
| Adams Natural Resources Fund, Inc. | 4,500 | $2.60M | 0.34% | −900−16.7% | Reduced |
| Harbor Advisors LLC | 4,500 | $2.60M | 0.33% | 00.0% | Unchanged |
| Pacer Advisors, Inc. | 4,504 | $2.60M | 0.01% | +1,255+38.6% | Added |
| Marshall Wace, LLP | 4,521 | $2.61M | 0.00% | +4,521 | New |
| Mattson Financial Services, LLC | 4,549 | $2.62M | 0.55% | +715+18.6% | Added |
| Gulf International Bank (UK) Ltd | 4,601 | $2.65M | 0.05% | −56−1.2% | Reduced |
| Brinker Capital Investments, LLC | 4,626 | $2.67M | 0.02% | −105−2.2% | Reduced |
| Westbourne Investments, Inc. | 4,675 | $2.70M | 1.10% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 4,686 | $2.70M | 0.01% | +97+2.1% | Added |
| Raiffeisen Bank International AG | 4,657 | $2.71M | 0.03% | +1,448+45.1% | Added |
| Mizuho Securities USA LLC | 4,701 | $2.71M | 0.04% | +1,055+28.9% | Added |
| Evelyn Partners Group Ltd | 4,744 | $2.74M | 0.05% | +4,744 | New |
| Alerus Financial NA | 4,896 | $2.82M | 0.12% | −1,937−28.3% | Reduced |
| Huntleigh Advisors, Inc. | 4,904 | $2.83M | 0.40% | −52−1.0% | Reduced |
| Allstate Corp | 4,943 | $2.85M | 0.03% | −3,339−40.3% | Reduced |
| Gabelli Funds LLC | 5,000 | $2.88M | 0.02% | 00.0% | Unchanged |
| Bislett Management, LLC | 5,000 | $2.88M | 1.95% | 00.0% | Unchanged |
| Mount Yale Investment Advisors, LLC | 5,016 | $2.89M | 0.05% | +146+3.0% | Added |
| Candriam Luxembourg S.C.A. | 5,035 | $2.90M | 0.01% | 00.0% | Unchanged |
| Bessemer Group Inc | 5,078 | $2.93M | 0.00% | −3,231−38.9% | Reduced |
| Atlantic Union Bankshares Corp | 5,097 | $2.94M | 0.05% | +405+8.6% | Added |
| True North Advisors, LLC | 5,317 | $3.07M | 0.29% | −14−0.3% | Reduced |
| Natixis | 5,324 | $3.07M | 0.01% | +3,608+210.3% | Added |
| KBC Group NV | 5,346 | $3.08M | 0.01% | −601−10.1% | Reduced |
| Rafferty Asset Management, LLC | 5,365 | $3.09M | 0.01% | +1,751+48.5% | Added |
| Schroder Investment Management Group | 5,558 | $3.21M | 0.00% | −956−14.7% | Reduced |
| Public Employees Retirement Association of Colorado | 5,623 | $3.24M | 0.01% | −279−4.7% | Reduced |
| Aviso Financial Inc. | 5,700 | $3.29M | 0.11% | +243+4.5% | Added |
| Wealthfront Advisers LLC | 5,706 | $3.29M | 0.01% | −669−10.5% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 28,189 | $3.32M | 0.01% | +333+1.2% | Added |
| Skylands Capital, LLC | 5,805 | $3.35M | 0.41% | −5−0.1% | Reduced |
| Sanctuary Advisors, LLC | 5,818 | $3.36M | 0.02% | −174−2.9% | Reduced |
| State of Alaska, Department of Revenue | 5,884 | $3.39M | 0.03% | −101−1.7% | Reduced |
| B & T Capital Management DBA Alpha Capital Management | 5,892 | $3.40M | 0.45% | +18+0.3% | Added |
| Yousif Capital Management, LLC | 5,904 | $3.40M | 0.04% | −350−5.6% | Reduced |
| Concorde Financial Corp | 5,910 | $3.41M | 2.74% | +41+0.7% | Added |
| Ilmarinen Mutual Pension Insurance Co | 6,000 | $3.46M | 0.02% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 6,047 | $3.49M | 0.01% | −612−9.2% | Reduced |
| Lido Advisors, LLC | 6,052 | $3.49M | 0.01% | +3,600+146.8% | Added |
| Summit Place Financial Advisors, LLC | 6,122 | $3.53M | 1.55% | +150+2.5% | Added |
| Dockside LLC | 6,166 | $3.56M | 0.83% | +6,166 | New |
| Apella Capital, LLC | 6,001 | $3.57M | 0.05% | +4+0.1% | Added |
| Mill Capital Management, LLC | 6,225 | $3.59M | 0.24% | 00.0% | Unchanged |
| Jump Financial, LLC | 6,227 | $3.59M | 0.03% | +5,215+515.3% | Added |
| Myriad Asset Management Advisors LLC | 6,261 | $3.61M | 0.85% | +821+15.1% | Added |
| Miller Capital Partners, Inc. | 6,275 | $3.62M | 1.42% | +173+2.8% | Added |
| Bank of Nova Scotia | 6,329 | $3.65M | 0.01% | −2,078−24.7% | Reduced |
| Baird Financial Group, Inc. | 6,362 | $3.67M | 0.01% | +232+3.8% | Added |
| Omers Administration Corp | 6,477 | $3.74M | 0.02% | +1,360+26.6% | Added |
| Tredje AP-fonden | 6,546 | $3.78M | 0.02% | −17,253−72.5% | Reduced |
| Baader Bank INC | 6,556 | $3.78M | 0.31% | +6,556 | New |
| Abn Amro Investment Solutions | 6,579 | $3.79M | 0.03% | −355−5.1% | Reduced |
| HB Wealth Management, LLC | 6,629 | $3.82M | 0.02% | −1,216−15.5% | Reduced |
| Mitchell Capital Management Co | 6,636 | $3.83M | 0.58% | −705−9.6% | Reduced |
| Perigon Wealth Management, LLC | 6,698 | $3.86M | 0.06% | −371−5.2% | Reduced |
| Nordea Investment Management AB | 6,726 | $3.87M | 0.00% | +652+10.7% | Added |
| Mackenzie Financial Corp | 6,835 | $3.94M | 0.00% | −113−1.6% | Reduced |
| Red Spruce Capital, LLC | 6,846 | $3.95M | 1.38% | +55+0.8% | Added |
| UniSuper Management Pty Ltd | 6,846 | $3.95M | 0.02% | +929+15.7% | Added |
| ARS Investment Partners, LLC | 6,898 | $3.98M | 0.17% | −10−0.1% | Reduced |
| Mercer Global Advisors Inc | 6,964 | $4.02M | 0.00% | −284−3.9% | Reduced |
| FIL Ltd | 7,006 | $4.04M | 0.00% | −14,738−67.8% | Reduced |
| OP Asset Management Ltd | 7,046 | $4.06M | 0.04% | +930+15.2% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 7,230 | $4.17M | 0.02% | +480+7.1% | Added |
| Fideuram Asset Management (Ireland) dac | 6,949 | $4.20M | 0.08% | +6,545+1,620.0% | Added |
| Salem Investment Counselors Inc | 7,388 | $4.26M | 0.11% | −45−0.6% | Reduced |
| Amica Mutual Insurance Co | 7,409 | $4.27M | 0.36% | −332−4.3% | Reduced |
| Oregon Public Employees Retirement Fund | 7,411 | $4.27M | 0.05% | +500+7.2% | Added |
| Southeast Asset Advisors Inc. | 7,474 | $4.31M | 0.44% | −13−0.2% | Reduced |
| Macquarie Group Ltd | 7,571 | $4.37M | 0.02% | +2,322+44.2% | Added |
| Atria Investments LLC | 7,653 | $4.41M | 0.04% | −578−7.0% | Reduced |
| Nisa Investment Advisors, LLC | 7,724 | $4.45M | 0.01% | −1,879−19.6% | Reduced |
| Commonwealth Equity Services, LLC | 8,033 | $4.63M | 0.01% | −463−5.4% | Reduced |
| Nissay Asset Management Corp | 8,074 | $4.66M | 0.02% | +310+4.0% | Added |
| Lountzis Asset Management, LLC | 8,179 | $4.72M | 1.49% | −146−1.8% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 8,261 | $4.76M | 0.03% | +228+2.8% | Added |
| Vestmark Advisory Solutions, Inc. | 8,332 | $4.80M | 0.05% | −3,279−28.2% | Reduced |
| OpenArc Corporate Advisory, LLC | 8,486 | $4.89M | 0.06% | −5,048−37.3% | Reduced |
| Whittier Trust Co of Nevada Inc | 8,259 | $4.91M | 0.09% | +65+0.8% | Added |
| Avanza Fonder AB | 8,713 | $5.02M | 0.11% | +1,787+25.8% | Added |
| IFP Advisors, Inc | 8,714 | $5.03M | 0.09% | +2,227+34.3% | Added |
| Prudential PLC | 8,757 | $5.05M | 0.04% | 00.0% | Unchanged |
| JustInvest LLC | 8,836 | $5.10M | 0.04% | −22−0.2% | Reduced |
| Abc Arbitrage SA | 8,888 | $5.13M | 0.55% | +5,953+202.8% | Added |
| New York Life Investment Management LLC | 8,933 | $5.15M | 0.04% | −46−0.5% | Reduced |
| Aquatic Capital Management LLC | 8,989 | $5.18M | 0.18% | +8,989 | New |
| Police & Firemen's Retirement System of New Jersey | 9,006 | $5.19M | 0.04% | −220−2.4% | Reduced |
| British Columbia Investment Management Corp | 9,030 | $5.21M | 0.03% | +717+8.6% | Added |
| Symmetry Investments LP | 9,046 | $5.22M | 0.58% | +9,046 | New |