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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,685,757 | $2.76B | 0.05% | +199,531+4.4% | Added |
| Vanguard Capital Management LLC | 3,917,383 | $2.31B | 0.06% | +3,917,383 | New |
| Vanguard Portfolio Management LLC | 3,160,444 | $1.86B | 0.10% | +3,160,444 | New |
| State Street Corp | 2,877,568 | $1.69B | 0.06% | +105,848+3.8% | Added |
| FMR LLC | 2,607,979 | $1.54B | 0.08% | −313,815−10.7% | Reduced |
| Bank of America Corp | 2,399,779 | $1.41B | 0.10% | +21,310+0.9% | Added |
| Principal Financial Group Inc | 2,093,942 | $1.23B | 0.66% | −76,804−3.5% | Reduced |
| Aristotle Capital Management, LLC | 1,955,100 | $1.15B | 2.41% | −95,177−4.6% | Reduced |
| JPMorgan Chase & Co | 1,860,226 | $1.07B | 0.07% | −369,361−16.6% | Reduced |
| Victory Capital Management Inc | 1,637,147 | $963.8M | 0.62% | −811,781−33.1% | Reduced |
| Geode Capital Management, LLC | 1,588,934 | $931.8M | 0.06% | +35,570+2.3% | Added |
| Price T Rowe Associates Inc | 1,488,840 | $876.5M | 0.10% | +1,185,809+391.3% | Added |
| Morgan Stanley | 1,341,601 | $789.8M | 0.05% | −25,415−1.9% | Reduced |
| Baillie Gifford & Co | 1,087,380 | $640.1M | 0.65% | −71,995−6.2% | Reduced |
| Select Equity Group, L.P. | 1,033,420 | $608.4M | 3.24% | −34,110−3.2% | Reduced |
| T. Rowe Price Investment Management, Inc. | 952,401 | $560.7M | 0.39% | +34,836+3.8% | Added |
| Goldman Sachs Group Inc | 885,855 | $521.5M | 0.07% | +96,320+12.2% | Added |
| Alkeon Capital Management LLC | 747,351 | $440.0M | 1.99% | 00.0% | Unchanged |
| Gardner Russo & Quinn LLCSuperinvestorGardner Russo & Quinn | 715,411 | $421.1M | 4.96% | −11,201−1.5% | Reduced |
| Invesco Ltd. | 690,913 | $406.7M | 0.04% | −78,991−10.3% | Reduced |
| King Luther Capital Management Corp | 666,722 | $392.5M | 1.70% | −23,406−3.4% | Reduced |
| Northern Trust Corp | 586,501 | $345.3M | 0.05% | −13,159−2.2% | Reduced |
| Dimensional Fund Advisors LP | 546,170 | $321.4M | 0.07% | +5,764+1.1% | Added |
| Franklin Resources Inc | 528,199 | $310.9M | 0.08% | +29,866+6.0% | Added |
| CIBC Bancorp USA Inc. | 474,543 | $279.4M | 0.38% | +474,543 | New |
| Charles Schwab Investment Management Inc | 460,519 | $271.1M | 0.04% | +11,635+2.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 448,048 | $263.7M | 0.36% | +26,156+6.2% | Added |
| Bank of New York Mellon Corp | 370,958 | $218.4M | 0.04% | +790.0% | Added |
| UBS Group AG | 354,168 | $208.5M | 0.04% | +119,839+51.1% | Added |
| UBS Asset Management Americas Inc | 339,818 | $200.0M | 0.04% | +42,417+14.3% | Added |
| Vanguard Fiduciary Trust Co | 339,289 | $199.7M | 0.05% | +339,289 | New |
| Davenport & Co LLC | 342,163 | $199.6M | 1.11% | −6,265−1.8% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 322,857 | $190.1M | 1.69% | +322,857 | New |
| Diamond Hill Capital Management Inc | 289,150 | $170.2M | 1.06% | −157,376−35.2% | Reduced |
| William Blair Investment Management, LLC | 272,392 | $160.4M | 0.53% | +2,189+0.8% | Added |
| Skye Global Management LP | 268,000 | $157.8M | 3.40% | −6,000−2.2% | Reduced |
| Wells Fargo & Company | 266,610 | $156.9M | 0.03% | +25,047+10.4% | Added |
| Legal & General Group Plc | 266,538 | $156.9M | 0.04% | −4,765−1.8% | Reduced |
| Amundi | 264,117 | $155.5M | 0.04% | +57,998+28.1% | Added |
| Mawer Investment Management Ltd. | 255,678 | $150.5M | 0.97% | −9,268−3.5% | Reduced |
| Congress Asset Management Co | 237,971 | $140.1M | 1.00% | −1,663−0.7% | Reduced |
| Raymond James Financial Inc | 238,651 | $139.0M | 0.04% | −87,137−26.7% | Reduced |
| Deutsche Bank AG | 235,410 | $138.6M | 0.05% | −35,513−13.1% | Reduced |
| Douglass Winthrop Advisors, LLC | 219,073 | $129.0M | 2.36% | −4,559−2.0% | Reduced |
| Great Lakes Advisors, LLC | 217,206 | $127.9M | 1.06% | +34,106+18.6% | Added |
| Clearbridge Investments, LLC | 214,672 | $126.4M | 0.11% | −29,480−12.1% | Reduced |
| Findlay Park Partners LLP | 194,302 | $114.4M | 1.59% | +13,520+7.5% | Added |
| London Co of Virginia | 189,623 | $111.6M | 0.69% | +19,143+11.2% | Added |
| DekaBank Deutsche Girozentrale | 177,524 | $104.3M | 0.17% | 00.0% | Unchanged |
| Swiss National Bank | 177,030 | $104.2M | 0.06% | +11,800+7.1% | Added |
| Envestnet Asset Management Inc | 172,360 | $101.5M | 0.03% | +12,810+8.0% | Added |
| Nuveen, LLC | 169,295 | $99.7M | 0.03% | +21,766+14.8% | Added |
| Rathbone Brothers plc | 162,991 | $95.9M | 0.38% | −35,210−17.8% | Reduced |
| Hawk Ridge Capital Management LP | 160,535 | $94.5M | 3.43% | −33,920−17.4% | Reduced |
| Royal Bank of Canada | 158,040 | $93.0M | 0.02% | −1,240−0.8% | Reduced |
| Nomura Asset Management International Inc. | 153,177 | $90.2M | 0.15% | −20,638−11.9% | Reduced |
| McDonald Capital Investors Inc | 149,912 | $88.3M | 6.04% | −1,726−1.1% | Reduced |
| Barclays PLC | 146,113 | $86.0M | 0.03% | +18,943+14.9% | Added |
| SEI Investments Co | 145,772 | $85.8M | 0.08% | −5,342−3.5% | Reduced |
| Federated Hermes, Inc. | 144,362 | $85.0M | 0.14% | +25,524+21.5% | Added |
| Camrose Capital Investment Partners LLP | 136,719 | $80.5M | 10.53% | +23,085+20.3% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 136,049 | $80.1M | 0.05% | +9,525+7.5% | Added |
| Vanguard Global Advisers, LLC | 131,440 | $77.4M | 0.04% | +131,440 | New |
| Steginsky Capital LLC | 128,350 | $75.6M | 12.49% | +8,715+7.3% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 127,880 | $75.3M | 0.05% | −6,816−5.1% | Reduced |
| Silvercrest Asset Management Group LLC | 115,525 | $68.0M | 0.49% | −7,743−6.3% | Reduced |
| Progeny 3, Inc. | 113,150 | $66.6M | 3.56% | 00.0% | Unchanged |
| California Public Employees Retirement System | 111,756 | $65.8M | 0.04% | +2,817+2.6% | Added |
| HSBC Holdings PLC | 111,620 | $65.7M | 0.04% | +6,686+6.4% | Added |
| Rhumbline Advisers | 110,538 | $65.1M | 0.06% | −982−0.9% | Reduced |
| Ameriprise Financial Inc | 107,571 | $63.3M | 0.01% | −13,397−11.1% | Reduced |
| CI Private Wealth, LLC | 104,539 | $61.5M | 0.09% | +57,459+122.0% | Added |
| M.D. Sass Investors Services, Inc. | 103,109 | $60.7M | 4.60% | +11,905+13.1% | Added |
| Natixis Advisors, L.P. | 101,479 | $59.7M | 0.08% | −1,683−1.6% | Reduced |
| Vanguard Asset Management, Ltd | 96,363 | $56.7M | 0.05% | +96,363 | New |
| RDST Capital LLC | 95,095 | $56.0M | 5.39% | −6,405−6.3% | Reduced |
| Two Sigma Investments, LP | 94,213 | $55.5M | 0.05% | +80,250+574.7% | Added |
| Interval Partners, LP | 94,172 | $55.4M | 1.91% | −112,998−54.5% | Reduced |
| Russell Investments Group, Ltd. | 92,175 | $54.2M | 0.06% | +2,709+3.0% | Added |
| Arrowstreet Capital, Limited Partnership | 91,519 | $53.9M | 0.03% | −46,515−33.7% | Reduced |
| One Madison Group LLC | 91,000 | $53.6M | 6.19% | +26,000+40.0% | Added |
| Quantum Capital Management, LLC | 90,394 | $53.2M | 6.81% | +90,394 | New |
| National Pension Service | 89,482 | $52.7M | 0.04% | +875+1.0% | Added |
| TD Asset Management Inc | 88,796 | $52.3M | 0.04% | −3,720−4.0% | Reduced |
| Fenimore Asset Management Inc | 88,327 | $52.0M | 1.16% | −1,601−1.8% | Reduced |
| Glenmede Trust Co NA | 84,752 | $49.9M | 0.25% | −4,278−4.8% | Reduced |
| BNP Paribas Arbitrage, SA | 82,360 | $48.5M | 0.03% | −35,389−30.1% | Reduced |
| Jones Financial Companies LLLP | 84,623 | $48.3M | 0.02% | +81,760+2,855.7% | Added |
| Lazard Freres Gestion S.A.S. | 81,690 | $48.1M | 0.95% | +661+0.8% | Added |
| Spears Abacus Advisors LLC | 81,257 | $47.8M | 0.94% | +28,549+54.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 78,894 | $46.4M | 0.05% | +55,233+233.4% | Added |
| Alliancebernstein L.P. | 74,585 | $46.4M | 0.02% | +3,151+4.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 75,476 | $44.4M | 0.11% | −12,310−14.0% | Reduced |
| TimesSquare Capital Management, LLC | 73,299 | $43.1M | 0.73% | −17,795−19.5% | Reduced |
| Canada Pension Plan Investment Board | 71,583 | $42.1M | 0.03% | +35,289+97.2% | Added |
| Woodline Partners LP | 70,938 | $41.8M | 0.16% | +69,835+6,331.4% | Added |
| California State Teachers Retirement System | 70,152 | $41.3M | 0.04% | −1,703−2.4% | Reduced |
| Gilder Gagnon Howe & Co LLC | 69,173 | $40.7M | 0.49% | −9,380−11.9% | Reduced |
| AQR Capital Management LLC | 65,460 | $37.6M | 0.02% | −34,319−34.4% | Reduced |
| Harvey Partners, LLC | 63,925 | $37.6M | 3.06% | +12,790+25.0% | Added |