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Martin Marietta Materials Inc
$569.35 -8.37 (-1.45%) At close · Jul 13
Market Cap
$34.19B
Shares
60,045,900

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 1,066
Total Value: $32,551,713,624
Total Shares: 55,316,412
Showing 1–100 of 1,082 holdings by value · page 1 of 11

Institutional Ownership Trend

26 quarters

Superinvestors Holding MLM

All superinvestors →
Tom Russo $421,148,147 Daniel Sundheim $190,059,458 Wally Weitz $23,414,747 Joel Greenblatt $12,933,299

Holder Concentration

Across 1,070 13F filers
Top Holder
8.5%
Jun 2023 → Mar 2026 · range 8.5% – 12.7%
of institutional value
Top 5
29.8%
Jun 2023 → Mar 2026 · range 29.8% – 34.6%
of institutional value
Top 10
46.2%
Jun 2023 → Mar 2026 · range 46.2% – 51.5%
of institutional value
HHI
290
Jun 2023 → Mar 2026 · range 290 – 379
Broadly held
Showing 100 of 1,082
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $2,758,411,422 8.47% 4,685,757
Mega VANGUARD CAPITAL MANAGEMENT LLC $2,306,085,024 7.08% 3,917,383
Mega STATE STREET CORP $1,693,966,730 5.20% 2,877,568
Mega FMR LLC $1,535,265,075 4.72% 2,607,979
Mega BANK OF AMERICA CORP /DE/ Bank $1,412,701,900 4.34% 2,399,779
Mega PRINCIPAL FINANCIAL GROUP INC $1,232,661,775 3.79% 2,093,942
Large Aristotle Capital Management, LLC $1,150,928,268 3.54% 1,955,100
Mega JPMORGAN CHASE & CO $1,095,077,833 3.36% 1,860,226
Mega VICTORY CAPITAL MANAGEMENT INC $963,755,695 2.96% 1,637,147
Mega GEODE CAPITAL MANAGEMENT, LLC $935,373,666 2.87% 1,588,934
Mega PRICE T ROWE ASSOCIATES INC /MD/ $876,450,330 2.69% 1,488,840
Mega MORGAN STANLEY $789,773,670 2.43% 1,341,601
Large BAILLIE GIFFORD & CO $640,118,856 1.97% 1,087,380
Large Select Equity Group, L.P. $608,353,685 1.87% 1,033,420
Mega T. Rowe Price Investment Management, Inc. $560,659,420 1.72% 952,401
Mega GOLDMAN SACHS GROUP INC $521,485,118 1.60% 885,855
Large ALKEON CAPITAL MANAGEMENT LLC $439,950,586 1.35% 747,351
Mid GARDNER RUSSO & QUINN LLC $421,148,147 1.29% 715,411
Mega Invesco Ltd. $406,726,658 1.25% 690,913
Large KING LUTHER CAPITAL MANAGEMENT CORP $392,485,906 1.21% 666,722
Mega NORTHERN TRUST CORP Bank $345,261,406 1.06% 586,501
Mega DIMENSIONAL FUND ADVISORS LP $321,519,354 0.99% 546,170
Mega FRANKLIN RESOURCES INC $310,940,184 0.96% 528,199
Large CIBC Bancorp USA Inc. Bank $279,353,972 0.86% 474,543
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $271,098,324 0.83% 460,519
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $263,756,895 0.81% 448,048
Mega Bank of New York Mellon Corp Bank $218,375,547 0.67% 370,958
Mega UBS Group AG $208,491,616 0.64% 354,168
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $200,044,055 0.61% 339,818
Mega VANGUARD FIDUCIARY TRUST CO Bank $199,732,648 0.61% 339,289
Large DAVENPORT & Co LLC $194,227,369 0.60% 336,791
Large D1 Capital Partners L.P. $190,059,458 0.58% 322,857
Large DIAMOND HILL CAPITAL MANAGEMENT INC $170,216,822 0.52% 289,150
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $160,351,722 0.49% 272,392
Mid Skye Global Management LP $157,766,240 0.48% 268,000
Mega WELLS FARGO & COMPANY/MN $156,947,973 0.48% 266,610
Mega Legal & General Group Plc $156,905,588 0.48% 266,538
Mega Amundi $155,480,394 0.48% 264,117
Large Mawer Investment Management Ltd. $150,512,525 0.46% 255,678
Mega RAYMOND JAMES FINANCIAL INC $140,489,068 0.43% 238,651
Mega DEUTSCHE BANK AG\ Bank $138,581,155 0.43% 235,410
Mid Douglass Winthrop Advisors, LLC $128,963,893 0.40% 219,073
Large GREAT LAKES ADVISORS, LLC $127,864,825 0.39% 217,206
Mega Clearbridge Investments, LLC $126,373,112 0.39% 214,672
Mid Findlay Park Partners LLP $114,381,701 0.35% 194,302
Large LONDON CO OF VIRGINIA $111,627,267 0.34% 189,623
Large DekaBank Deutsche Girozentrale Bank $104,504,828 0.32% 177,524
Mega Swiss National Bank Bank $104,214,020 0.32% 177,030
Mega ENVESTNET ASSET MANAGEMENT INC $101,464,884 0.31% 172,360
Mega Nuveen, LLC $99,660,579 0.31% 169,295
Large Rathbones Group PLC $95,949,541 0.29% 162,991
Mid HAWK RIDGE CAPITAL MANAGEMENT LP $94,503,743 0.29% 160,535
Mega ROYAL BANK OF CANADA Bank $93,034,982 0.29% 158,040
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $90,172,236 0.28% 153,177
Mid MCDONALD CAPITAL INVESTORS INC/CA $88,250,196 0.27% 149,912
Mega BARCLAYS PLC $86,013,799 0.26% 146,113
Large SEI INVESTMENTS CO $85,813,060 0.26% 145,772
Large FEDERATED HERMES, INC. $84,983,021 0.26% 144,362
Small Camrose Capital Investment Partners LLP $80,483,740 0.25% 136,719
Mega Mitsubishi UFJ Asset Management Co., Ltd. $80,089,325 0.25% 136,049
Small STEGINSKY CAPITAL LLC $79,901,208 0.25% 138,549
Mega Vanguard Global Advisers, LLC $77,376,099 0.24% 131,440
Mega Sumitomo Mitsui Trust Group, Inc. $75,280,398 0.23% 127,880
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $68,007,257 0.21% 115,525
Mid Progeny 3, Inc. $66,609,142 0.20% 113,150
Mega California Public Employees Retirement System Pension $65,788,522 0.20% 111,756
Mega HSBC HOLDINGS PLC $65,708,459 0.20% 111,620
Mega RHUMBLINE ADVISERS $65,071,509 0.20% 110,538
Mega AMERIPRISE FINANCIAL INC $63,324,894 0.19% 107,571
Large Corient Private Wealth LLC $61,540,017 0.19% 104,539
Mid M.D. Sass, LLC $60,698,206 0.19% 103,109
Large NATIXIS ADVISORS, LLC $59,738,657 0.18% 101,479
Mega VANGUARD ASSET MANAGEMENT, Ltd $56,726,970 0.17% 96,363
Small RDST Capital LLC $55,980,524 0.17% 95,095
Large Curated Wealth Partners LLC $55,649,819 0.17% 96,497
Mega TWO SIGMA INVESTMENTS, LP $55,461,308 0.17% 94,213
Mid Interval Partners, LP $55,437,172 0.17% 94,172
Large Russell Investments Group, Ltd. $54,261,573 0.17% 92,175
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $53,875,404 0.17% 91,519
Small One Madison Group LLC $53,569,880 0.16% 91,000
Small Quantum Capital Management, LLC / NJ $53,213,139 0.16% 90,394
Mega National Pension Service Pension $52,676,263 0.16% 89,482
Mega TD Asset Management Inc $52,272,429 0.16% 88,796
Mid Fenimore Asset Management Inc $51,996,338 0.16% 88,327
Large GLENMEDE TRUST CO NA Bank $49,891,806 0.15% 84,752
Large JONES FINANCIAL COMPANIES LLLP $49,815,867 0.15% 84,623
Mega BNP PARIBAS ARBITRAGE, SA $48,483,684 0.15% 82,360
Mid Lazard Freres Gestion S.A.S. $48,089,269 0.15% 81,690
Mid Cannell & Spears LLC $47,834,370 0.15% 81,257
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $46,443,318 0.14% 78,894
Large Mitsubishi UFJ Trust & Banking Corp $44,431,211 0.14% 75,476
Mega ALLIANCEBERNSTEIN L.P. $43,906,697 0.13% 74,585
Mid TimesSquare Capital Management, LLC $43,149,655 0.13% 73,299
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $42,139,480 0.13% 71,583
Large Woodline Partners LP $41,759,781 0.13% 70,938
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $41,297,079 0.13% 70,152
Mid GILDER GAGNON HOWE & CO LLC $40,720,761 0.13% 69,173
Mega AQR CAPITAL MANAGEMENT LLC $38,534,989 0.12% 65,460
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $38,323,068 0.12% 65,100
Mid Harvey Partners, LLC $37,631,369 0.12% 63,925
Key facts CIK 916076 CUSIP 573284106 13F (30d) 120 filings 83 filers Visit website Investor relations

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