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MLMMartin Marietta Materials

Materials · Aggregates · NYSE

Martin Marietta Materials, Inc. (the Company or Martin Marietta) is a leading natural resource-based building materials company. 10-K, Item 1

Headquarters
Raleigh, NC
CEO
C. Howard Nye
Next results
around Feb 10, 2027
Compare with peers → Embed

Who owns MLM

83% of the shares are held by institutions that file 13Fs; the rest by everyone else.

13F filings are quarterly and up to 45 days old. Insider trades: Form 4 rows coded P (bought) and S (sold) at a price, not grants or plan exercises.

Institutional ownership 13F data can be up to 45 days old

Every 13F-HR filed for the quarter ending Jun 30, 2026, from SEC's Form 13F data sets. A 13F lists the long positions of managers with more than $100M in US stocks. Two managers can report the same shares, so totals can count some shares twice.

Held by institutions83.4% 59.28M shares of those outstanding
Holders1,071 -4 from Mar 31, 2026
Shares held, quarter on quarter +1.2% 110 new, 333 added, 366 cut, 114 sold out
Top 10 holders45% of the shares institutions hold
HolderSharesValue% of companyFrom Mar 31, 2026
BlackRock, Inc. 4.69M$2.7B 6.60% Held
VANGUARD CAPITAL MANAGEMENT LLC 3.93M$2.3B 5.53% Held
VANGUARD PORTFOLIO MANAGEMENT LLC 3.20M$1.8B 4.50% Added +1.2%
STATE STREET CORP 3.16M$1.8B 4.44% Added +9.8%
BANK OF AMERICA CORP /DE/ 2.45M$1.4B 3.44% Added +2.0%
FMR LLC 2.19M$1.3B 3.08% Reduced -15.9%
PRINCIPAL FINANCIAL GROUP INC 2.12M$1.2B 2.98% Added +1.1%
Aristotle Capital Management, LLC 1.83M$1.1B 2.58% Reduced -6.3%
VICTORY CAPITAL MANAGEMENT INC 1.78M$1.0B 2.51% Added +8.9%
GEODE CAPITAL MANAGEMENT, LLC 1.60M$919.9M 2.25% Added +0.8%
PRICE T ROWE ASSOCIATES INC /MD/ 1.60M$922K 2.25% Added +7.4%
JPMORGAN CHASE & CO 1.47M$852.6M 2.06% Reduced -21.1%
TCI FUND MANAGEMENT LTD 1.32M$758.4M 1.85% New
GOLDMAN SACHS GROUP INC 1.16M$670.9M 1.64% Added +31.3%
MORGAN STANLEY 1.01M$583.6M 1.42% Reduced -24.6%
Select Equity Group, L.P. 1.01M$583.2M 1.42% Reduced -2.1%
BAILLIE GIFFORD & CO 992K$572.0M 1.39% Reduced -8.8%
GARDNER RUSSO & QUINN LLC 705K$406.8M 0.99% Reduced -1.4%
KING LUTHER CAPITAL MANAGEMENT CORP 653K$376.7M 0.92% Reduced -2.0%
Invesco Ltd. 650K$374.6M 0.91% Reduced -6.0%
T. Rowe Price Investment Management, Inc. 641K$370K 0.90% Reduced -32.7%
ALKEON CAPITAL MANAGEMENT LLC 627K$361.8M 0.88% Reduced -16.1%
DIMENSIONAL FUND ADVISORS LP 586K$338.1M 0.82% Added +7.3%
NORTHERN TRUST CORP 570K$328.9M 0.80% Reduced -2.8%
NORGES BANK 557K$321.3M 0.78% New

Bought the most shares

  • TCI FUND MANAGEMENT LTD +1.32M, new
  • NORGES BANK +557K, new
  • STATE STREET CORP +282K
  • GOLDMAN SACHS GROUP INC +277K
  • 59 North Capital Management, LP +214K, new
  • VICTORY CAPITAL MANAGEMENT INC +146K
  • Freestone Grove Partners LP +124K, new
  • Junto Capital Management LP +124K, new
  • PRICE T ROWE ASSOCIATES INC /MD/ +110K
  • HAWK RIDGE CAPITAL MANAGEMENT LP +78K

Sold the most shares

  • FMR LLC -415K
  • JPMORGAN CHASE & CO -393K
  • MORGAN STANLEY -330K
  • T. Rowe Price Investment Management, Inc. -311K
  • CONGRESS ASSET MANAGEMENT CO -177K
  • Rathbones Group PLC -166K
  • Aristotle Capital Management, LLC -124K
  • ALKEON CAPITAL MANAGEMENT LLC -120K
  • BAILLIE GIFFORD & CO -96K
  • WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC -90K

Superinvestors holding MLM 13F data can be up to 45 days old

From the latest 13F-HR of each of the investors followed on Investors. A 13F shows holdings at the end of a quarter and is filed up to 45 days later.

InvestorQuarterSharesValue% of portfolioLast quarter
Chris Hohn TCI Fund Management Jun 30, 20261.32M$758.4M 1.54% New
Thomas Russo Gardner Russo & Quinn Jun 30, 2026705K$406.8M 5.18% Reduced -1.4%
Wally Weitz Weitz Investment Management Jun 30, 202647K$27.3M 2.02% Added +19.1%

13D filings: owners of more than 5% who may push for change

Aug 24, 2026 13D 15.4% of MLM's shares new stake, above 5%
LNA Holding SRL and 3 more reporting persons · 10.95M shares · event Aug 21, 2026
Item 4, purpose of the transaction: Shareholders Agreement On the Closing Date, the Issuer, LNH and, solely for purposes of the standstill provisions set forth therein, FGI, entered into a shareholders' agreement (the "Shareholders Agreement"). Under the Shareholders Agreement, LNH and its affiliates are subject to a lock-up period with respect to the Consideration Shares, with 50% of such shares released from the lock-up on the 12-month anniversary of the Closing Date and the remaining 50% of such shares released from the lock-up on the 24-month anniversary of the Closing. The Shareholders Agreement further provides that the Board of Directors of the Issuer (the "Board") will take such actions as are necessary to increase th…
Read the filing ↗

Work on MLM in a spreadsheet: Excel workbook (a sheet per section, ten years by column, charts, links to the filings) · CSV. For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/MLM/export.csv") into a cell.