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MLM

Martin Marietta Materials Inc

Company with tickers: MLM

CIK
916076
CUSIP
573284106
Shares Outstanding
60,045,900
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 1,064
Total Value: $33,115,303,801
Total Shares: 56,253,490
Showing 1–100 of 1,080 holdings by value · page 1 of 11

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 1,064 13F filers · Δ vs Dec 31, 2025
Top Holder
8.3%
Jun 2023 → Mar 2026 · range 6.7% – 14.0%
+1.6 pts
Top 5
30.7%
Jun 2023 → Mar 2026 · range 28.6% – 38.1%
+1.6 pts
Top 10
48.3%
Jun 2023 → Mar 2026 · range 44.2% – 54.5%
+4.1 pts
HHI
306
Jun 2023 → Mar 2026 · range 257 – 430
Broadly held +49

Quarterly Activity

vs Dec 31, 2025
New
110
Increased
373
Decreased
358
Sold Out
146
Unchanged
223
Holder count: -36
Institutional value: +21.8%
Shares held: +28.8%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega BlackRock, Inc. +4,525,464 4,685,757
Mega JPMORGAN CHASE & CO +1,694,340 1,860,226
Mega PRICE T ROWE ASSOCIATES INC /MD/ +1,185,809 1,488,840
Mega UBS Group AG +119,839 356,268
Mega STATE STREET CORP +105,848 2,877,568

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega VICTORY CAPITAL MANAGEMENT INC −811,781 1,637,147
Mid NORTHERN TRUST CORP −597,201 2,459
Large EAGLE CAPITAL MANAGEMENT LLC −320,284 470
Mega FMR LLC −313,815 2,607,979
Mega MORGAN STANLEY −271,627 114,562

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega VANGUARD CAPITAL MANAGEMENT LLC 3,917,383 $2,306,085,024
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 3,160,444 $1,860,490,173
Mega T. Rowe Price Investment Management, Inc. 952,401 $560,659,420
Large CIBC Bancorp USA Inc. 372,428 $219,240,915
Mega VANGUARD FIDUCIARY TRUST CO 339,289 $199,732,648

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega NORGES BANK 569,623 $354,681,457
Large CIBC Private Wealth Group, LLC 475,138 $295,849,426
Large Freestone Grove Partners LP 151,872 $94,564,619
Large GLENMEDE TRUST CO NA 89,030 $55,435,418
Large Walleye Capital LLC 49,628 $30,901,370
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $2,758,411,422 8.33% 4,685,757 View
Mega VANGUARD CAPITAL MANAGEMENT LLC $2,306,085,024 6.96% 3,917,383 View
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $1,860,490,173 5.62% 3,160,444 View
Mega STATE STREET CORP $1,693,966,730 5.12% 2,877,568 View
Mega FMR LLC $1,535,265,075 4.64% 2,607,979 View
Mega BANK OF AMERICA CORP /DE/ $1,412,701,900 4.27% 2,399,779 View
Mega PRINCIPAL FINANCIAL GROUP INC $1,232,661,775 3.72% 2,093,942 View
Large Aristotle Capital Management, LLC $1,150,928,268 3.48% 1,955,100 View
Mega JPMORGAN CHASE & CO $1,095,077,833 3.31% 1,860,226 View
Mega VICTORY CAPITAL MANAGEMENT INC $963,755,695 2.91% 1,637,147 View
Mega GEODE CAPITAL MANAGEMENT, LLC $935,373,666 2.82% 1,588,934 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $876,450,330 2.65% 1,488,840 View
Large BAILLIE GIFFORD & CO $640,118,856 1.93% 1,087,380 View
Large Select Equity Group, L.P. $608,353,685 1.84% 1,033,420 View
Mega T. Rowe Price Investment Management, Inc. $560,659,420 1.69% 952,401 View
Mega GOLDMAN SACHS GROUP INC $521,485,118 1.57% 885,855 View
Large ALKEON CAPITAL MANAGEMENT LLC $439,950,586 1.33% 747,351 View
Mid GARDNER RUSSO & QUINN LLC $421,148,147 1.27% 715,411 View
Mega Invesco Ltd. $406,726,658 1.23% 690,913 View
Large KING LUTHER CAPITAL MANAGEMENT CORP $392,485,906 1.19% 666,722 View
Mega DIMENSIONAL FUND ADVISORS LP $321,519,354 0.97% 546,170 View
Mega FRANKLIN RESOURCES INC $310,940,184 0.94% 528,199 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $271,098,324 0.82% 460,519 View
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $263,756,895 0.80% 448,048 View
Large CIBC Bancorp USA Inc. $219,240,915 0.66% 372,428 View
Mega Bank of New York Mellon Corp $218,375,547 0.66% 370,958 View
Mega UBS Group AG $208,491,616 0.63% 354,168 View
Large DAVENPORT & Co LLC $201,424,514 0.61% 342,163 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $200,044,055 0.60% 339,818 View
Mega VANGUARD FIDUCIARY TRUST CO $199,732,648 0.60% 339,289 View
Large D1 Capital Partners L.P. $190,059,458 0.57% 322,857 View
Large DIAMOND HILL CAPITAL MANAGEMENT INC $170,216,822 0.51% 289,150 View
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $160,351,722 0.48% 272,392 View
Mid Skye Global Management LP $157,766,240 0.48% 268,000 View
Mega WELLS FARGO & COMPANY/MN $156,947,973 0.47% 266,610 View
Mega Legal & General Group Plc $156,905,588 0.47% 266,538 View
Mega Amundi $155,480,394 0.47% 264,117 View
Large Mawer Investment Management Ltd. $150,512,525 0.45% 255,678 View
Mega RAYMOND JAMES FINANCIAL INC $140,489,068 0.42% 238,651 View
Large CONGRESS ASSET MANAGEMENT CO $140,088,768 0.42% 237,971 View
Mega DEUTSCHE BANK AG\ $138,581,155 0.42% 235,410 View
Mid Douglass Winthrop Advisors, LLC $128,963,893 0.39% 219,073 View
Large GREAT LAKES ADVISORS, LLC $127,864,825 0.39% 217,206 View
Mega Clearbridge Investments, LLC $126,373,112 0.38% 214,672 View
Mid Findlay Park Partners LLP $114,381,701 0.35% 194,302 View
Large LONDON CO OF VIRGINIA $111,627,267 0.34% 189,623 View
Large DekaBank Deutsche Girozentrale $104,504,828 0.32% 177,524 View
Mega Swiss National Bank $104,214,020 0.31% 177,030 View
Mega ENVESTNET ASSET MANAGEMENT INC $101,464,884 0.31% 172,360 View
Mega Nuveen, LLC $99,660,579 0.30% 169,295 View
Large Rathbones Group PLC $95,949,541 0.29% 162,991 View
Mid HAWK RIDGE CAPITAL MANAGEMENT LP $94,503,743 0.29% 160,535 View
Mega ROYAL BANK OF CANADA $93,034,982 0.28% 158,040 View
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $90,172,236 0.27% 153,177 View
Mid MCDONALD CAPITAL INVESTORS INC/CA $88,250,196 0.27% 149,912 View
Mega BARCLAYS PLC $86,013,799 0.26% 146,113 View
Large SEI INVESTMENTS CO $85,813,060 0.26% 145,772 View
Large FEDERATED HERMES, INC. $84,983,021 0.26% 144,362 View
Small Camrose Capital Investment Partners LLP $80,483,740 0.24% 136,719 View
Mega Mitsubishi UFJ Asset Management Co., Ltd. $80,089,325 0.24% 136,049 View
Mega Vanguard Global Advisers, LLC $77,376,099 0.23% 131,440 View
Small STEGINSKY CAPITAL LLC $75,557,078 0.23% 128,350 View
Mega Sumitomo Mitsui Trust Group, Inc. $75,280,398 0.23% 127,880 View
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $68,007,257 0.21% 115,525 View
Mega MORGAN STANLEY $67,440,357 0.20% 114,562 View
Mid Progeny 3, Inc. $66,609,142 0.20% 113,150 View
Mega California Public Employees Retirement System $65,788,522 0.20% 111,756 View
Mega HSBC HOLDINGS PLC $65,708,459 0.20% 111,620 View
Mega RHUMBLINE ADVISERS $65,071,509 0.20% 110,538 View
Mega AMERIPRISE FINANCIAL INC $63,324,894 0.19% 107,571 View
Large Corient Private Wealth LLC $61,540,017 0.19% 104,539 View
Mid M.D. Sass, LLC $60,698,206 0.18% 103,109 View
Large NATIXIS ADVISORS, LLC $59,738,657 0.18% 101,479 View
Mega VANGUARD ASSET MANAGEMENT, Ltd $56,726,970 0.17% 96,363 View
Mid RDST Capital LLC $55,980,524 0.17% 95,095 View
Mega TWO SIGMA INVESTMENTS, LP $55,461,308 0.17% 94,213 View
Mid Interval Partners, LP $55,437,172 0.17% 94,172 View
Large Russell Investments Group, Ltd. $54,261,573 0.16% 92,175 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $53,875,404 0.16% 91,519 View
Small One Madison Group LLC $53,569,880 0.16% 91,000 View
Small Quantum Capital Management, LLC / NJ $53,213,139 0.16% 90,394 View
Mega National Pension Service $52,676,263 0.16% 89,482 View
Mega TD Asset Management Inc $52,272,429 0.16% 88,796 View
Mid Fenimore Asset Management Inc $51,996,338 0.16% 88,327 View
Mega BNP PARIBAS ARBITRAGE, SA $48,483,684 0.15% 82,360 View
Mid Lazard Freres Gestion S.A.S. $48,089,269 0.15% 81,690 View
Mid Cannell & Spears LLC $47,834,370 0.14% 81,257 View
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $46,443,318 0.14% 78,894 View
Large Mitsubishi UFJ Trust & Banking Corp $44,431,211 0.13% 75,476 View
Mega ALLIANCEBERNSTEIN L.P. $43,906,697 0.13% 74,585 View
Mid TimesSquare Capital Management, LLC $43,149,655 0.13% 73,299 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $42,139,480 0.13% 71,583 View
Large Woodline Partners LP $41,759,781 0.13% 70,938 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $41,297,079 0.12% 70,152 View
Mid GILDER GAGNON HOWE & CO LLC $40,720,761 0.12% 69,173 View
Mega AQR CAPITAL MANAGEMENT LLC $38,534,989 0.12% 65,460 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $38,323,068 0.12% 65,100 View
Mid Harvey Partners, LLC $37,631,369 0.11% 63,925 View
Mid HERITAGE INVESTORS MANAGEMENT CORP $36,638,854 0.11% 62,239 View
Mega CITIGROUP INC $35,794,686 0.11% 60,805 View
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