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 |
|---|---|---|---|---|---|
| Two Sigma Investments, LP | 94,213 | $55.5M | 0.05% | +80,250+574.7% | Added |
| RDST Capital LLC | 95,095 | $56.0M | 5.39% | −6,405−6.3% | Reduced |
| Vanguard Asset Management, Ltd | 96,363 | $56.7M | 0.05% | +96,363 | New |
| Natixis Advisors, L.P. | 101,479 | $59.7M | 0.08% | −1,683−1.6% | Reduced |
| M.D. Sass Investors Services, Inc. | 103,109 | $60.7M | 4.60% | +11,905+13.1% | Added |
| CI Private Wealth, LLC | 104,539 | $61.5M | 0.09% | +57,459+122.0% | Added |
| Ameriprise Financial Inc | 107,571 | $63.3M | 0.01% | −13,397−11.1% | Reduced |
| Rhumbline Advisers | 110,538 | $65.1M | 0.06% | −982−0.9% | Reduced |
| HSBC Holdings PLC | 111,620 | $65.7M | 0.04% | +6,686+6.4% | Added |
| California Public Employees Retirement System | 111,756 | $65.8M | 0.04% | +2,817+2.6% | Added |
| Progeny 3, Inc. | 113,150 | $66.6M | 3.56% | 00.0% | Unchanged |
| Silvercrest Asset Management Group LLC | 115,525 | $68.0M | 0.49% | −7,743−6.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 127,880 | $75.3M | 0.05% | −6,816−5.1% | Reduced |
| Steginsky Capital LLC | 128,350 | $75.6M | 12.49% | +8,715+7.3% | Added |
| Vanguard Global Advisers, LLC | 131,440 | $77.4M | 0.04% | +131,440 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 136,049 | $80.1M | 0.05% | +9,525+7.5% | Added |
| Camrose Capital Investment Partners LLP | 136,719 | $80.5M | 10.53% | +23,085+20.3% | Added |
| Federated Hermes, Inc. | 144,362 | $85.0M | 0.14% | +25,524+21.5% | Added |
| SEI Investments Co | 145,772 | $85.8M | 0.08% | −5,342−3.5% | Reduced |
| Barclays PLC | 146,113 | $86.0M | 0.03% | +18,943+14.9% | Added |
| McDonald Capital Investors Inc | 149,912 | $88.3M | 6.04% | −1,726−1.1% | Reduced |
| Nomura Asset Management International Inc. | 153,177 | $90.2M | 0.15% | −20,638−11.9% | Reduced |
| Royal Bank of Canada | 158,040 | $93.0M | 0.02% | −1,240−0.8% | Reduced |
| Hawk Ridge Capital Management LP | 160,535 | $94.5M | 3.43% | −33,920−17.4% | Reduced |
| Rathbone Brothers plc | 162,991 | $95.9M | 0.38% | −35,210−17.8% | Reduced |
| Nuveen, LLC | 169,295 | $99.7M | 0.03% | +21,766+14.8% | Added |
| Envestnet Asset Management Inc | 172,360 | $101.5M | 0.03% | +12,810+8.0% | Added |
| Swiss National Bank | 177,030 | $104.2M | 0.06% | +11,800+7.1% | Added |
| DekaBank Deutsche Girozentrale | 177,524 | $104.3M | 0.17% | 00.0% | Unchanged |
| London Co of Virginia | 189,623 | $111.6M | 0.69% | +19,143+11.2% | Added |
| Findlay Park Partners LLP | 194,302 | $114.4M | 1.59% | +13,520+7.5% | Added |
| Clearbridge Investments, LLC | 214,672 | $126.4M | 0.11% | −29,480−12.1% | Reduced |
| Great Lakes Advisors, LLC | 217,206 | $127.9M | 1.06% | +34,106+18.6% | Added |
| Douglass Winthrop Advisors, LLC | 219,073 | $129.0M | 2.36% | −4,559−2.0% | Reduced |
| Deutsche Bank AG | 235,410 | $138.6M | 0.05% | −35,513−13.1% | Reduced |
| Raymond James Financial Inc | 238,651 | $139.0M | 0.04% | −87,137−26.7% | Reduced |
| Congress Asset Management Co | 237,971 | $140.1M | 1.00% | −1,663−0.7% | Reduced |
| Mawer Investment Management Ltd. | 255,678 | $150.5M | 0.97% | −9,268−3.5% | Reduced |
| Amundi | 264,117 | $155.5M | 0.04% | +57,998+28.1% | Added |
| Legal & General Group Plc | 266,538 | $156.9M | 0.04% | −4,765−1.8% | Reduced |
| Wells Fargo & Company | 266,610 | $156.9M | 0.03% | +25,047+10.4% | Added |
| Skye Global Management LP | 268,000 | $157.8M | 3.40% | −6,000−2.2% | Reduced |
| William Blair Investment Management, LLC | 272,392 | $160.4M | 0.53% | +2,189+0.8% | Added |
| Diamond Hill Capital Management Inc | 289,150 | $170.2M | 1.06% | −157,376−35.2% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 322,857 | $190.1M | 1.69% | +322,857 | New |
| Davenport & Co LLC | 342,163 | $199.6M | 1.11% | −6,265−1.8% | Reduced |
| Vanguard Fiduciary Trust Co | 339,289 | $199.7M | 0.05% | +339,289 | New |
| UBS Asset Management Americas Inc | 339,818 | $200.0M | 0.04% | +42,417+14.3% | Added |
| UBS Group AG | 354,168 | $208.5M | 0.04% | +119,839+51.1% | Added |
| Bank of New York Mellon Corp | 370,958 | $218.4M | 0.04% | +790.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 448,048 | $263.7M | 0.36% | +26,156+6.2% | Added |
| Charles Schwab Investment Management Inc | 460,519 | $271.1M | 0.04% | +11,635+2.6% | Added |
| CIBC Bancorp USA Inc. | 474,543 | $279.4M | 0.38% | +474,543 | New |
| Franklin Resources Inc | 528,199 | $310.9M | 0.08% | +29,866+6.0% | Added |
| Dimensional Fund Advisors LP | 546,170 | $321.4M | 0.07% | +5,764+1.1% | Added |
| Northern Trust Corp | 586,501 | $345.3M | 0.05% | −13,159−2.2% | Reduced |
| King Luther Capital Management Corp | 666,722 | $392.5M | 1.70% | −23,406−3.4% | Reduced |
| Invesco Ltd. | 690,913 | $406.7M | 0.04% | −78,991−10.3% | Reduced |
| Gardner Russo & Quinn LLCSuperinvestorGardner Russo & Quinn | 715,411 | $421.1M | 4.96% | −11,201−1.5% | Reduced |
| Alkeon Capital Management LLC | 747,351 | $440.0M | 1.99% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 885,855 | $521.5M | 0.07% | +96,320+12.2% | Added |
| T. Rowe Price Investment Management, Inc. | 952,401 | $560.7M | 0.39% | +34,836+3.8% | Added |
| Select Equity Group, L.P. | 1,033,420 | $608.4M | 3.24% | −34,110−3.2% | Reduced |
| Baillie Gifford & Co | 1,087,380 | $640.1M | 0.65% | −71,995−6.2% | Reduced |
| Morgan Stanley | 1,341,601 | $789.8M | 0.05% | −25,415−1.9% | Reduced |
| Price T Rowe Associates Inc | 1,488,840 | $876.5M | 0.10% | +1,185,809+391.3% | Added |
| Geode Capital Management, LLC | 1,588,934 | $931.8M | 0.06% | +35,570+2.3% | Added |
| Victory Capital Management Inc | 1,637,147 | $963.8M | 0.62% | −811,781−33.1% | Reduced |
| JPMorgan Chase & Co | 1,860,226 | $1.07B | 0.07% | −369,361−16.6% | Reduced |
| Aristotle Capital Management, LLC | 1,955,100 | $1.15B | 2.41% | −95,177−4.6% | Reduced |
| Principal Financial Group Inc | 2,093,942 | $1.23B | 0.66% | −76,804−3.5% | Reduced |
| Bank of America Corp | 2,399,779 | $1.41B | 0.10% | +21,310+0.9% | Added |
| FMR LLC | 2,607,979 | $1.54B | 0.08% | −313,815−10.7% | Reduced |
| State Street Corp | 2,877,568 | $1.69B | 0.06% | +105,848+3.8% | Added |
| Vanguard Portfolio Management LLC | 3,160,444 | $1.86B | 0.10% | +3,160,444 | New |
| Vanguard Capital Management LLC | 3,917,383 | $2.31B | 0.06% | +3,917,383 | New |
| BlackRock, Inc. | 4,685,757 | $2.76B | 0.05% | +199,531+4.4% | Added |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −151,872−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −49,228−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −46,785−100.0% | Sold out |
| Weiss Asset Management LP | 0 | $0 | 0.00% | −41,668−100.0% | Sold out |
| Marsico Capital Management LLC | 0 | $0 | 0.00% | −19,533−100.0% | Sold out |
| Shellback Capital, LP | 0 | $0 | 0.00% | −15,920−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −11,954−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −11,929−100.0% | Sold out |
| Rakuten Investment Management, Inc. | 0 | $0 | 0.00% | −7,934−100.0% | Sold out |
| Mediolanum International Funds Ltd | 0 | $0 | 0.00% | −6,488−100.0% | Sold out |
| Dockside LLC | 0 | $0 | 0.00% | −5,986−100.0% | Sold out |
| Gallo Partners, LP | 0 | $0 | 0.00% | −4,460−100.0% | Sold out |
| Capital Wealth Planning, LLC | 0 | $0 | 0.00% | −4,325−100.0% | Sold out |
| Delta Global Management LP | 0 | $0 | 0.00% | −3,887−100.0% | Sold out |
| Sandler Capital Management | 0 | $0 | 0.00% | −3,799−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −3,784−100.0% | Sold out |
| Kentucky Retirement Systems | 0 | $0 | 0.00% | −3,765−100.0% | Sold out |
| Hudson Canyon Capital Management | 0 | $0 | 0.00% | −3,603−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −2,647−100.0% | Sold out |
| Symmetry Investments LP | 0 | $0 | 0.00% | −2,360−100.0% | Sold out |
| Stance Capital LLC | 0 | $0 | 0.00% | −2,208−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −2,169−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −2,073−100.0% | Sold out |