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 |
|---|---|---|---|---|---|
| Oregon Public Employees Retirement Fund | 7,411 | $4.27M | 0.05% | +500+7.2% | Added |
| Amica Mutual Insurance Co | 7,409 | $4.27M | 0.36% | −332−4.3% | Reduced |
| Salem Investment Counselors Inc | 7,388 | $4.26M | 0.11% | −45−0.6% | Reduced |
| Fideuram Asset Management (Ireland) dac | 6,949 | $4.20M | 0.08% | +6,545+1,620.0% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 7,230 | $4.17M | 0.02% | +480+7.1% | Added |
| OP Asset Management Ltd | 7,046 | $4.06M | 0.04% | +930+15.2% | Added |
| FIL Ltd | 7,006 | $4.04M | 0.00% | −14,738−67.8% | Reduced |
| Mercer Global Advisors Inc | 6,964 | $4.02M | 0.00% | −284−3.9% | Reduced |
| ARS Investment Partners, LLC | 6,898 | $3.98M | 0.17% | −10−0.1% | 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 |
| Mackenzie Financial Corp | 6,835 | $3.94M | 0.00% | −113−1.6% | Reduced |
| Nordea Investment Management AB | 6,726 | $3.87M | 0.00% | +652+10.7% | Added |
| Perigon Wealth Management, LLC | 6,698 | $3.86M | 0.06% | −371−5.2% | Reduced |
| Mitchell Capital Management Co | 6,636 | $3.83M | 0.58% | −705−9.6% | Reduced |
| HB Wealth Management, LLC | 6,629 | $3.82M | 0.02% | −1,216−15.5% | Reduced |
| Abn Amro Investment Solutions | 6,579 | $3.79M | 0.03% | −355−5.1% | Reduced |
| Baader Bank INC | 6,556 | $3.78M | 0.31% | +6,556 | New |
| Tredje AP-fonden | 6,546 | $3.78M | 0.02% | −17,253−72.5% | Reduced |
| Omers Administration Corp | 6,477 | $3.74M | 0.02% | +1,360+26.6% | Added |
| Baird Financial Group, Inc. | 6,362 | $3.67M | 0.01% | +232+3.8% | Added |
| Bank of Nova Scotia | 6,329 | $3.65M | 0.01% | −2,078−24.7% | Reduced |
| Miller Capital Partners, Inc. | 6,275 | $3.62M | 1.42% | +173+2.8% | Added |
| Myriad Asset Management Advisors LLC | 6,261 | $3.61M | 0.85% | +821+15.1% | Added |
| Jump Financial, LLC | 6,227 | $3.59M | 0.03% | +5,215+515.3% | Added |
| Mill Capital Management, LLC | 6,225 | $3.59M | 0.24% | 00.0% | Unchanged |
| Apella Capital, LLC | 6,001 | $3.57M | 0.05% | +4+0.1% | Added |
| Dockside LLC | 6,166 | $3.56M | 0.83% | +6,166 | New |
| Summit Place Financial Advisors, LLC | 6,122 | $3.53M | 1.55% | +150+2.5% | Added |
| Lido Advisors, LLC | 6,052 | $3.49M | 0.01% | +3,600+146.8% | Added |
| Federation des caisses Desjardins du Quebec | 6,047 | $3.49M | 0.01% | −612−9.2% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 6,000 | $3.46M | 0.02% | 00.0% | Unchanged |
| Concorde Financial Corp | 5,910 | $3.41M | 2.74% | +41+0.7% | Added |
| Yousif Capital Management, LLC | 5,904 | $3.40M | 0.04% | −350−5.6% | Reduced |
| B & T Capital Management DBA Alpha Capital Management | 5,892 | $3.40M | 0.45% | +18+0.3% | Added |
| State of Alaska, Department of Revenue | 5,884 | $3.39M | 0.03% | −101−1.7% | Reduced |
| Sanctuary Advisors, LLC | 5,818 | $3.36M | 0.02% | −174−2.9% | Reduced |
| Skylands Capital, LLC | 5,805 | $3.35M | 0.41% | −5−0.1% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 28,189 | $3.32M | 0.01% | +333+1.2% | Added |
| Wealthfront Advisers LLC | 5,706 | $3.29M | 0.01% | −669−10.5% | Reduced |
| Aviso Financial Inc. | 5,700 | $3.29M | 0.11% | +243+4.5% | Added |
| Public Employees Retirement Association of Colorado | 5,623 | $3.24M | 0.01% | −279−4.7% | Reduced |
| Schroder Investment Management Group | 5,558 | $3.21M | 0.00% | −956−14.7% | Reduced |
| Rafferty Asset Management, LLC | 5,365 | $3.09M | 0.01% | +1,751+48.5% | Added |
| KBC Group NV | 5,346 | $3.08M | 0.01% | −601−10.1% | Reduced |
| Natixis | 5,324 | $3.07M | 0.01% | +3,608+210.3% | Added |
| True North Advisors, LLC | 5,317 | $3.07M | 0.29% | −14−0.3% | Reduced |
| Atlantic Union Bankshares Corp | 5,097 | $2.94M | 0.05% | +405+8.6% | Added |
| Bessemer Group Inc | 5,078 | $2.93M | 0.00% | −3,231−38.9% | Reduced |
| Candriam Luxembourg S.C.A. | 5,035 | $2.90M | 0.01% | 00.0% | Unchanged |
| Mount Yale Investment Advisors, LLC | 5,016 | $2.89M | 0.05% | +146+3.0% | Added |
| Gabelli Funds LLC | 5,000 | $2.88M | 0.02% | 00.0% | Unchanged |
| Bislett Management, LLC | 5,000 | $2.88M | 1.95% | 00.0% | Unchanged |
| Allstate Corp | 4,943 | $2.85M | 0.03% | −3,339−40.3% | Reduced |
| Huntleigh Advisors, Inc. | 4,904 | $2.83M | 0.40% | −52−1.0% | Reduced |
| Alerus Financial NA | 4,896 | $2.82M | 0.12% | −1,937−28.3% | Reduced |
| Evelyn Partners Group Ltd | 4,744 | $2.74M | 0.05% | +4,744 | New |
| Mizuho Securities USA LLC | 4,701 | $2.71M | 0.04% | +1,055+28.9% | Added |
| Raiffeisen Bank International AG | 4,657 | $2.71M | 0.03% | +1,448+45.1% | Added |
| Wiley Bros.-Aintree Capital, LLC | 4,686 | $2.70M | 0.01% | +97+2.1% | Added |
| Westbourne Investments, Inc. | 4,675 | $2.70M | 1.10% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 4,626 | $2.67M | 0.02% | −105−2.2% | Reduced |
| Gulf International Bank (UK) Ltd | 4,601 | $2.65M | 0.05% | −56−1.2% | Reduced |
| Mattson Financial Services, LLC | 4,549 | $2.62M | 0.55% | +715+18.6% | Added |
| Marshall Wace, LLP | 4,521 | $2.61M | 0.00% | +4,521 | New |
| Pacer Advisors, Inc. | 4,504 | $2.60M | 0.01% | +1,255+38.6% | Added |
| 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 |
| Azzad Asset Management Inc | 4,459 | $2.57M | 0.23% | −3−0.1% | Reduced |
| Legacy Financial Independent Advisors LLC | 4,246 | $2.45M | 1.15% | +4,246 | New |
| Delta Global Management LP | 4,230 | $2.44M | 0.26% | +4,230 | New |
| Saudi Central Bank | 4,218 | $2.43M | 0.03% | +1,992+89.5% | Added |
| Campbell & CO Investment Adviser LLC | 4,096 | $2.36M | 0.12% | +4,096 | New |
| Sage Investment Advisers LLC | 4,085 | $2.36M | 1.58% | 00.0% | Unchanged |
| Polymer Capital Management (US) LLC | 4,012 | $2.31M | 0.34% | −946−19.1% | Reduced |
| Lipe & Dalton | 3,963 | $2.29M | 1.06% | 00.0% | Unchanged |
| Baker Avenue Asset Management, LP | 3,892 | $2.24M | 0.04% | +889+29.6% | Added |
| Third View Private Wealth, LLC | 3,861 | $2.23M | 0.27% | −116−2.9% | Reduced |
| Investment Management Corp of Ontario | 3,843 | $2.22M | 0.03% | −1,564−28.9% | Reduced |
| Griffin Asset Management, Inc. | 3,834 | $2.21M | 0.23% | −16−0.4% | Reduced |
| GKV Capital Management Co., Inc. | 3,816 | $2.20M | 0.71% | −181−4.5% | Reduced |
| CWM Advisors, LLC | 3,807 | $2.20M | 0.09% | +521+15.9% | Added |
| Pinnacle Associates Ltd | 3,792 | $2.19M | 0.02% | +22+0.6% | Added |
| Kentucky Retirement Systems | 3,786 | $2.18M | 0.05% | +3,786 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 3,754 | $2.16M | 0.00% | −42−1.1% | Reduced |
| Gardner Lewis Asset Management L P | 3,734 | $2.15M | 0.48% | −1,150−23.5% | Reduced |
| Integrated Wealth Concepts LLC | 3,709 | $2.14M | 0.01% | +2,770+295.0% | Added |
| Brown Brothers Harriman & Co | 3,697 | $2.13M | 0.01% | −6−0.2% | Reduced |
| Weaver Capital Management LLC | 3,620 | $2.13M | 0.47% | 00.0% | Unchanged |
| Generali Asset Management SPA SGR | 3,690 | $2.13M | 0.04% | 00.0% | Unchanged |
| Leavell Investment Management, Inc. | 3,667 | $2.11M | 0.08% | +746+25.5% | Added |
| Graham Capital Management, L.P. | 3,600 | $2.08M | 0.06% | +850+30.9% | Added |
| XTX Topco Ltd | 3,569 | $2.06M | 0.03% | +535+17.6% | Added |
| RD Lewis Holdings, Inc. | 3,662 | $2.03M | 1.51% | +254+7.5% | Added |
| Harfst & Associates, Inc. | 3,511 | $2.02M | 0.31% | +120+3.5% | Added |
| Alps Advisors Inc | 3,507 | $2.02M | 0.01% | +3,507 | New |
| Schear Investment Advisers, LLC | 3,484 | $2.01M | 0.67% | +206+6.3% | Added |
| Norinchukin Bank, The | 3,470 | $2.00M | 0.02% | +7+0.2% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 3,448 | $1.99M | 0.06% | +480+16.2% | Added |
| Profund Advisors LLC | 3,439 | $1.98M | 0.05% | +1,726+100.8% | Added |