MLM on NYSE

Martin Marietta Materials

American materials company

Martin Marietta Materials, Inc. is an American company that supplies aggregates, cement, asphalt, and heavy building materials. It has operations spanning 26 states, Canada, and the Caribbean. In particular, Martin Marietta Materials supplies resources for the construction of roads, sidewalks, and foundations.3 Its shares trade on NYSE under the symbol MLM.1 Wikipedia text CC BY-SA 4.0

Price unavailable

Last updated Oct 21, 2026.

Overview

1993Founded1

Compare with Vulcan Materials Company, Sociedad Química y Minera de Chile or Knife River Corp, or pick any stock.

  • TickerMLM on NYSE1
  • Industrymining1
  • HeadquartersRaleigh1
  • Websitewww.martinmarietta.com
  • Legal formBusiness Corporation1
  • Incorporated inNC5
  • Business address4123 Parklake Ave, Raleigh, Nc 276125
  • Filer categoryLarge accelerated filer5
  • LEI5299005MZ4WZECVATV084
  • StatusActive4
  • LEI statusIssued and current4
  • Registered addressC/O CT Corporation System, 27615 Raleigh, United States4
  • Registered withCorporations Division (Department of the Secretary of State), 03337564
Martin Marietta Materials
Photo: Jeffrey Beall, CC BY 4.0, via Wikimedia Commons8

Martin Marietta Materials, Inc. is an American company that supplies aggregates, cement, asphalt, and heavy building materials. It has operations spanning 26 states, Canada, and the Caribbean. In particular, Martin Marietta Materials supplies resources for the construction of roads, sidewalks, and foundations.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

30.7%Gross margin9
23.4%Operating margin9
18.5%Net margin9
8.6%Revenue growth, 20259
11.3%Return on equity9
0.53×Debt to equity9
$978.0MFree cash flow9

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Cement and Ready Mixed Concrete brought in 56% of the revenue Martin Marietta Materials broke down this way in fiscal 2024.

  1. Cement and Ready Mixed Concrete$1.1B956%down 27% from 2023
  2. Asphalt and Paving Services$869.0M944%down 2% from 2023
Products and services by year
Products and services20232024
Cement and Ready Mixed Concrete$1.5B$1.1B
Asphalt and Paving Services$887.0M$869.0M

Business segments

Building Materials Business East Group brought in 52% of the revenue Martin Marietta Materials broke down this way in fiscal 2025.

  1. Building Materials Business East Group$3.2B952%up 9% from 2024
  2. Building Materials Business West Group$2.5B941%up 5% from 2024
  3. Specialties$441.0M97%up 38% from 2024
Business segments by year
Business segments202320242025
Building Materials Business East Group$2.8B$2.9B$3.2B
Building Materials Business West Group$2.8B$2.4B$2.5B
Specialties$315.0M$320.0M$441.0M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue68¢$4.3B
  • Selling, general and admin7¢$443.0M
  • Interest4¢$230.0M
  • Income tax4¢$236.0M
  • Profit18¢$1.1B

Out of $6.2B in revenue.9

Where each dollar of operating cash went, fiscal 2025

  • Capital spending45¢$807.0M
  • Dividends paid11¢$197.0M
  • Share buybacks25¢$450.0M
  • Kept or used elsewhere19¢$331.0M

Out of $1.8B of cash from operations.9

Financial statements

Revenue101112139$6.2B in 2025+30% since 2019
0$2.0B$4.0B$6.0B$8.0B2019: $4.7B$4.7B20192020: $4.7B$4.7B2020−0%2021: $5.4B$5.4B2021+14%2022: $6.2B$6.2B2022+14%2023: $5.9B$5.9B2023−5%2024: $5.7B$5.7B2024−3%2025: $6.2B$6.2B2025+9%
Gross profit101112139$1.9B in 2025+60% since 2019
0$500.0M$1.0B$1.5B$2.0B2019: $1.2B$1.2B20192020: $1.3B$1.3B2020+6%2021: $1.3B$1.3B2021+8%2022: $1.4B$1.4B2022+6%2023: $1.7B$1.7B2023+23%2024: $1.6B$1.6B2024−6%2025: $1.9B$1.9B2025+15%
Operating income101112139$1.4B in 2025+62% since 2019
0$1.0B$2.0B$3.0B2019: $884.9M$884.9M20192020: $1.0B$1.0B2020+14%2021: $973.8M$973.8M2021−3%2022: $1.2B$1.2B2022+24%2023: $1.3B$1.3B2023+10%2024: $2.5B$2.5B2024+86%2025: $1.4B$1.4B2025−42%
Net income101112139$1.1B in 2025+86% since 2019
0$500.0M$1.0B$1.5B$2.0B2019: $611.9M$611.9M20192020: $721.0M$721.0M2020+18%2021: $702.5M$702.5M2021−3%2022: $867.0M$867.0M2022+23%2023: $1.2B$1.2B2023+35%2024: $2.0B$2.0B2024+71%2025: $1.1B$1.1B2025−43%

Every line of the income statement as filed: the last 3 fiscal years (annual) or 8 quarters (quarterly), latest first.9

Period ending2025-12-312024-12-312023-12-31
Revenues$6.2B$5.7B$5.9B
Cost of revenues$4.3B$4.0B$4.1B
Gross Profit$1.9B$1.6B$1.7B
Selling, general and administrative expenses$443.0M$429.0M$425.0M
Acquisition, divestiture and integration expenses$15.0M$50.0M$12.0M
Other operating income, net-$6.0M-$1.3B-$25.0M
Earnings from Operations$1.4B$2.5B$1.3B
Interest expense$230.0M$169.0M$165.0M
Other nonoperating income, net-$19.0M-$56.0M-$58.0M
Earnings from continuing operations before income tax expense$1.2B$2.4B$1.2B
Income tax expense$236.0M$550.0M$234.0M
Earnings from continuing operations$990.0M$1.8B$992.0M
Earnings from discontinued operations, net of income tax expense$147.0M$180.0M$178.0M
Consolidated net earnings$1.1B$2.0B$1.2B
Less: Net earnings attributable to noncontrolling interests$0$1.0M$1.0M
Net Earnings Attributable to Martin Marietta$1.1B$2.0B$1.2B
Basic from continuing operations attributable to common shareholders$16$30$16
Basic from discontinued operations attributable to common shareholders$2$3$3
Total basic attributable to common shareholders$18.81$32.50$18.88
Diluted from continuing operations attributable to common shareholders$16$30$16
Diluted from discontinued operations attributable to common shareholders$2$3$3
Total diluted attributable to common shareholders$18.77$32.41$18.82
Basic60.5M shares61.4M shares61.9M shares
Diluted60.6M shares61.6M shares62.1M shares

Compare Martin Marietta Materials with another company

Corporate structure

Martin Marietta Materials sits at the top of its group. 8 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Martin Marietta Materials

  • Martin Marietta Materials Raleigh, North Carolina, United States
    • 1560947 B.C. LTD., a Subsidiary · British Columbia, Canada
    • Frazier Quarry, Inc. Subsidiary · Raleigh, North Carolina, United States
    • Martin Marietta Kansas City, LLC is owned 95% by Martin Marietta Materials, Inc. and 5% by Martin Marietta Materials of Subsidiary · Missouri, United States
    • Martin Marietta Materials Canada Limited, a Subsidiary · Nova Scotia, Canada
    • Martin Marietta Materials, Inc. Defined Benefit Plans Master Retirement Trust Subsidiary · Raleigh, North Carolina, United States
    • Martin Marietta Pension Plan Subsidiary · Raleigh, North Carolina, United States
    • PCAz Leasing, LLC is a wholly owned subsidiary of Martin Marietta Subsidiary · Arizona, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Martin Marietta Materials reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, net$10.3B9 Dec 31, 2025$9.7B9 Dec 31, 2024+6.5%
Finance-lease assets$289.0M9 Dec 31, 2025$195.0M9 Dec 31, 2024+48.2%
Operating-lease assets (leased space)$367.0M9 Dec 31, 2025$366.0M9 Dec 31, 2024+0.3%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$67.0M9 Dec 31, 2025$670.0M9 Dec 31, 2024−90.0%

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$3.6B9 Dec 31, 2025$3.4B9 Dec 31, 2024+6.5%
Intangible assets, net (excluding goodwill)$8.0M9 Dec 31, 2025$62.0M13 Dec 31, 2024−87.1%
Indefinite-lived intangibles (excluding goodwill)$43.0M9 Dec 31, 2025$38.0M9 Dec 31, 2024+13.2%
Finite-lived intangibles, gross$568.0M9 Dec 31, 2025$568.0M9 Dec 31, 20240%
Accumulated amortization$152.0M9 Dec 31, 2025$129.0M9 Dec 31, 2024+17.8%
Finite-lived intangibles, net$416.0M9 Dec 31, 2025$439.0M9 Dec 31, 2024−5.2%

Inventory

ItemLatestA year beforeChange
Inventory, total$1.1B9 Dec 31, 2025$1.0B9 Dec 31, 2024+5.9%
Raw materials$49.0M9 Dec 31, 2025$42.0M9 Dec 31, 2024+16.7%
Work in process$14.0M9 Dec 31, 2025$8.0M9 Dec 31, 2024+75.0%
Finished goods$1.4B9 Dec 31, 2025$1.3B9 Dec 31, 2024+4.7%
Supplies$124.0M9 Dec 31, 2025$106.0M9 Dec 31, 2024+17.0%

Properties, in its own words

As of December 31, 2025, the Company processed or shipped aggregates from 400 quarries, mines and distribution yards in 28 states, Canada and The Bahamas. No individual quarry or mine is material to the Company’s business or financial condition. The Company’s aggregates reserves, on average, represent approximately 85 years at the 2025 annual production level. However, certain locations may be subject to more limited reserves and may not be able to expand. As of December 31, 2025, the Company operated 89 aggregates distribution yards.

In total, aggregates locations (quarries, mines and distribution yards) include 194 located on land owned by the Company free of major encumbrances, 126 on leased land, 64 on land owned in part and leased in part and 16 on facilities neither owned nor leased where raw materials are removed pursuant to contractual agreements.

The rest of Item 2

In addition, as of December 31, 2025, the Company processed and shipped ready mixed concrete and asphalt products from 112 properties in five states, of which 86 are located on land owned by the Company free of major encumbrances, 24 are on leased land and two are on land owned in part and leased in part. Of this total, 58 ready mixed concrete plants located in Texas are classified as assets held for sale as of December 31, 2025.

An overview of the Company’s quarrying and mining operations is included in Business—Building Materials Business and Business—Environmental and Governmental Regulations included in Item 1, Business of this Form 10-K, which is incorporated herein by reference. The following map presents the locations of these quarries and underground mines as of December 31, 2025:

Mineral reserves and mineral resources for the Company’s aggregates and cement businesses have been prepared in accordance with the disclosure requirements of subpart 1300 of U.S. Securities and Exchange Commission Regulation S-K. Mineral resources represent concentrations or occurrences of material of economic interest in or on the Earth's crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. A mineral resource is a reasonable estimate of mineralization, considering relevant factors such as cut-off grade, likely mining dimensions, location or continuity, that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. A measured mineral resource is that part of the mineral resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling in sufficient detail to support detailed extraction planning and final evaluation of the economic viability of the deposit to be quarried or mined. An indicated mineral resource is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling in sufficient detail to support mine planning and evaluation of the economic viability of the deposit of the material to be quarried or mined. Inferred mineral resources are that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling.

A mineral reserve is an estimate of tonnage and grade or quality of indicated and measured mineral resources that, in the opinion of the qualified person, can be the basis of an economically viable project. More specifically, it is the economically mineable part of a measured or indicated mineral resource, which includes diluting materials and allowances for losses that may occur when the material is mined or extracted. A probable mineral reserve is the economically mineable part of an indicated and, in some cases, a measured mineral resource. A proven mineral reserve is the economically mineable part of a measured mineral resource and results only from the conversion of a measured mineral resource. The Company estimates proven and probable mineral reserves based on the results of drilling and testing completed by or under the supervision of qualified persons.

The Company uses various exploratory drilling methods, depending on the type of deposit, to estimate mineral reserves that are economically mineable. The extent of drilling varies depending on the complexity of the mineral deposit and whether the location is a potential new site (greensite), an existing location or a potential acquisition. More extensive drilling is performed for potential greensites and acquisitions, and, in certain cases, the Company may rely on existing geological data or results of prior drilling by reputable third parties. Subsequent to drilling, selected drill samples are tested by an accredited laboratory for soundness, abrasion resistance and other physical properties relevant to the aggregates industry. If the mineral reserves meet the Company’s standards and are economically mineable, they are either leased or purchased. Once in operation, routine quality control testing is performed to ensure the quality grade of aggregates continues to meet specifications.

Item 2 of the 10-K filed Feb 19, 2026.17

The story

The present-day materials business is distantly descended from Superior Stone, an aggregates company founded in 1939 by brothers Willam Trent Ragland and Edmond Ragland in Raleigh, North Carolina. In 1959, the company, led by William Trent Ragland as president, merged with the American-Marietta Corporation, which merged with the Glenn L. Martin Company a year later to form the Martin Marietta Corporation in 1961. In 1971, Martin Marietta acquired Harvey Aluminum, a company which made aluminum oxide, aluminum ingot and aircraft grade aluminum sheet. William Trent Ragland continued as CEO until 1977, after retiring and becoming Emeritus Senior Vice President. Martin Marietta merged with Lockheed Corporation in 1995, and a year later, Martin Marietta Materials was spun off as an independent company, with Lockheed Martin retaining various aerospace, defense, and other manufacturing lines of business.

In 2014, the company acquired Texas Industries for $2 billion.

Martin Marietta's Magnesia Specialties business provides a full range of magnesium oxide, magnesium hydroxide, and dolomitic lime products.

From Wikipedia’s article on Martin Marietta Materials, shared under CC BY-SA 4.0.6

Leadership

Who has led Martin Marietta Materials, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (44)

Subsidiaries and ownership

Subsidiaries (Exhibit 21)

  • 1560947 B.C. LTD., a British Columbia, Canada corporation7
  • Martin Marietta Kansas City, LLC is owned 95% by Martin Marietta Materials, Inc. and 5% by Martin Marietta Materials of Missouri, Inc.7
  • Martin Marietta Materials Canada Limited, a Nova Scotia, Canada corporation7
  • PCAz Leasing, LLC is a wholly owned subsidiary of Martin Marietta Arizona, LLC.7

The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Timeline

  1. Sep 16, 20268-K Entered a material agreement70
  2. Aug 24, 20268-K Entered a material agreement; Completed an acquisition or sale; Unregistered sale of shares71
  3. Aug 18, 20268-K Entered a material agreement; Ended a material agreement; New debt or obligation72
  4. Aug 14, 20268-K Entered a material agreement; New debt or obligation; Other events73
  5. Aug 12, 20268-K Entered a material agreement; Regulation FD disclosure74
  6. Aug 10, 20268-K Other events75
  7. Aug 5, 20268-K Other events76
  8. Aug 4, 20268-K Executive or director change77
  9. Jul 30, 20268-K Results of operations; Regulation FD disclosure78
  10. Jul 15, 20268-K Entered a material agreement; New debt or obligation79
  11. Jun 29, 20268-K Regulation FD disclosure80
  12. Jun 29, 20268-K Entered a material agreement; Unregistered sale of shares; Other events81
  13. Jan 29, 2010New chief executive C. Howard Nye becomes CEO18
  14. Feb 2, 2006New chief executive Stephen P. Zelnak Jr. becomes CEO19
  15. 1993Founded Founded1

Calendar

Coming up

  1. Nov 3, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported $5.97 a share, on Nov 4, 2025.82

When it reported results

  1. Jul 30, 2026Reported quarterly or annual results78
  2. Apr 30, 2026Reported quarterly or annual results83
  3. Feb 11, 2026Reported quarterly or annual results84
  4. Nov 4, 2025Reported quarterly or annual results85
  5. Aug 7, 2025Reported quarterly or annual results86
  6. Aug 4, 2025Reported quarterly or annual results87
  7. Apr 30, 2025Reported quarterly or annual results88
  8. Apr 10, 2025Reported quarterly or annual results89

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

445 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 70 major events, 287 insider forms, 23 large holders, 45 other. The latest 20:

  1. Sep 18, 2026SD EDGAR
  2. Sep 16, 20268-K CURRENT REPORT EDGAR
  3. Sep 2, 20264 PRIMARY DOCUMENT EDGAR
  4. Sep 2, 20264 PRIMARY DOCUMENT EDGAR
  5. Sep 2, 20264 PRIMARY DOCUMENT EDGAR
  6. Sep 2, 20264 PRIMARY DOCUMENT EDGAR
  7. Aug 25, 20264 PRIMARY DOCUMENT EDGAR
  8. Aug 24, 2026SCHEDULE 13D EDGAR
  9. Aug 24, 20263 EDGAR
  10. Aug 24, 20263 EDGAR
  11. Aug 24, 20268-K CURRENT REPORT EDGAR
  12. Aug 18, 20268-K CURRENT REPORT EDGAR
  13. Aug 14, 20268-K EDGAR
  14. Aug 13, 2026424B2 EDGAR
  15. Aug 12, 20268-K EDGAR
  16. Aug 11, 2026FWP EDGAR
  17. Aug 10, 2026424B5 EDGAR
  18. Aug 10, 20268-K EDGAR
  19. Aug 7, 2026SCHEDULE 13G EDGAR
  20. Aug 5, 20268-K CURRENT REPORT EDGAR

The 445 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

10 open-market trades by officers, directors and large owners since October 2021: 1 buys and 9 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Aug 8, 2025PEREZ LAREE EDirectorSale1,038$613.32$636.6KForm 4
Mar 5, 2025McCunniff Donald A.EVP and CHROSale1,332$475.00$632.7KForm 4
Mar 4, 2025Petro Michael JSVP and CFOBuy550$454.37$249.9KForm 4
Mar 14, 2024BAR ROSELYN RExecutive Vice PresidentSale10,000$603.29$6.0MForm 4
Mar 5, 2024Nye C HowardChairman, Pres & CEOSale20,000$604.26$12.1MForm 4
Feb 16, 2024COLE SUE WDirectorSale1,724$543.48$937.0KForm 4
Aug 21, 2023LaTorre Craig MSr. VP, CHROSale1,934$431.68$834.9KForm 4
Jul 28, 2023LaTorre Craig MSr. VP, CHROSale500$447.09$223.5KForm 4
Nov 18, 2022COLE SUE WDirectorSale1,685$355.61$599.2KForm 4
Jun 10, 2022Mohr John PSVP - CIOSale0$321.75$145Form 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025C. Howard NyeChair, President and CEO$1.4M$14.3M100
2025Robert J. Cardin8 Senior Vice President, Controller and Chief Accounting Officer; Former Interim Chief Financial Officer 7$467.2K$4.8M100
2025Donald A. McCunniff10 Executive Vice President, Chief Human Resources Officer$697.5K$3.8M100
2025Michael J. Petro7 Senior Vice President and Chief Financial Officer$510.9K$3.4M100
2025Bradley D. Kohn10, 11 Former Senior Vice President, General Counsel and Corporate Secretary$580.0K$2.3M100
2025Jason P. Flynn10 Senior Vice President, Chief Information Officer$389.9K$1.8M100
2025James A. J. NickolasFormer Executive Vice President and Chief Financial Officer$206.7K$302.2K100
2024C. Howard NyeChair, President and CEO$1.3M$17.7M100
2024James A. J. NickolasFormer Executive Vice President and Chief Financial Officer$713.4K$4.4M100
2024Robert J. Cardin8 Senior Vice President, Controller and Chief Accounting Officer; Former Interim Chief Financial Officer 7$449.0K$2.5M100
2024Michael J. Petro7 Senior Vice President and Chief Financial Officer$414.2K$2.0M100
2023C. Howard NyeChair, President and CEO$1.3M$18.5M100
2023James A. J. NickolasFormer Executive Vice President and Chief Financial Officer$680.5K$4.3M100
2023Robert J. Cardin8 Senior Vice President, Controller and Chief Accounting Officer; Former Interim Chief Financial Officer 7$430.6K$2.3M100
2023Michael J. Petro7 Senior Vice President and Chief Financial Officer$396.7K$2.0M100

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.4,692,446$2.7B0.0%+6,689
Vanguard Capital Management LLC3,929,705$2.3B0.0%+12,322
Vanguard Portfolio Management LLC3,197,395$1.8B0.1%+36,951
State Street Corp3,159,639$1.8B0.1%+282,071
Bank Of America Corp /de/2,446,762$1.4B0.1%+46,983
Fmr LLC2,192,603$1.3B0.1%−415,376
Principal Financial Group Inc2,116,369$1.2B0.6%+22,427
Aristotle Capital Management, LLC1,831,597$1.1B2.2%−123,503
Victory Capital Management Inc1,783,432$1.0B0.6%+146,285
Geode Capital Management, LLC1,601,490$919.9M0.0%+12,556
Jpmorgan Chase & Co1,466,887$852.6M0.0%−393,339
Tci Fund Management Ltd1,315,109$758.4M1.4%New
Goldman Sachs Group Inc1,163,330$670.9M0.1%+277,475
Morgan Stanley1,012,016$583.6M0.0%−329,585
Select Equity Group, L.P.1,011,255$583.2M3.1%−22,165
Baillie Gifford & Co991,786$572.0M0.5%−95,594
Gardner Russo & Quinn LLC705,367$406.8M4.6%−10,044
King Luther Capital Management Corp653,184$376.7M1.6%−13,538
Invesco Ltd.649,575$374.6M0.0%−41,338
Alkeon Capital Management LLC627,351$361.8M1.4%−120,000
Dimensional Fund Advisors LP586,145$338.1M0.1%+39,975
Northern Trust Corp570,346$328.9M0.0%−16,155
Norges Bank557,143$321.3M0.0%New
Charles Schwab Investment Management Inc492,536$284.0M0.0%+32,017
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.486,058$280.3M0.3%+38,010

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

19 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Aug 25, 2026April McClain DelaneyDemocratic, HouseSale$250,001 - $500,000+8.4%Report
Aug 19, 2026April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−8.6%Report
Jul 24, 2026April McClain DelaneyDemocratic, HouseBuy$15,001 - $50,000−16.7%Report
Jul 20, 2026April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−15.3%Report
Jul 17, 2026April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−16.5%Report
May 28, 2026April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−16.9%Report
Apr 9, 2026Josh GottheimerDemocratic, HouseSale$15,001 - $50,000+35.0%Report
Mar 9, 2026April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−33.6%Report
Dec 2, 2025April McClain DelaneyDemocratic, HouseBuy$1,001 - $15,000−32.4%Report
Sep 23, 2025Val T. HoyleDemocratic, HouseSale$1,001 - $15,000+36.5%Report
Aug 1, 2025April McClain DelaneyDemocratic, HousePartial sale$1,001 - $15,000+39.1%Report
Jun 10, 2025Lisa C. McClainRepublican, HouseSale$1,001 - $15,000+39.4%Report
Dec 11, 2024Lisa C. McClainRepublican, HouseBuy$1,001 - $15,000−39.4%Report
Oct 29, 2024Val T. HoyleDemocratic, HouseBuy$1,001 - $15,000−48.5%Report
Nov 30, 2022Dan SullivanRepublican, SenateSale$1,001 - $15,000+55.3%Report
Nov 7, 2018Thomas R. SuozziDemocratic, HouseSale$50,001 - $100,000+15.8%Report
Oct 15, 2018Thomas R. SuozziDemocratic, HouseBuy$50,001 - $100,000+10.1%Report
Oct 2, 2018Thomas R. SuozziDemocratic, HouseBuy$15,001 - $50,000+0.9%Report
Oct 1, 2018Thomas R. SuozziDemocratic, HouseBuy$15,001 - $50,000+1.9%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

SEC filer profile

How Martin Marietta Materials is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARMARTIN MARIETTA MATERIALS INC2
  • CIK0000916076
  • Employer ID (EIN)56-184857817
  • Filer statusLarge accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company17
  • Incorporated inNorth Carolina17
  • Fiscal year endsDecember 312
  • Industry code (SIC)1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)2
  • SEC reviewing officeOffice of Energy & Transportation, Division of Corporation Finance2
  • Business address4123 Parklake Ave, Raleigh, NC 276122
  • Phone919-781-45502
  • Shares outstanding60,065,839 as of Jul 27, 202615
  • Public float$28.8B as of Jun 30, 202517
  • AuditorPricewaterhouseCoopers LLP, Raleigh, North Carolina, United States PCAOB ID 238; it also attests to the company’s internal control over financial reporting17
  • On EDGAR sinceMay 14, 19962
  • Filings2,977 in all: 4 (1,952), 8-K (304), SC 13G/A (115), 10-Q (92), 425 (65), 11-K (52), SC 13G (46), 3 (39)2
    All 55 form types

    SC TO-T/A (33), DEF 14A (30), CORRESP (29), UPLOAD (25), 10-K (24), 4/A (18), 424B5 (13), 144 (11), SC 13D/A (11), DFAN14A (10), FWP (9), S-8 (9), S-4/A (7), 10-K405 (6), 424B2 (6), 8-K/A (6), S-3ASR (6), S-4 (6), SC 13D (5), 424B3 (4), ARS (4), PRRN14A (4), SCHEDULE 13G (3), SD (3), 10-Q/A (2), 11-KT (2), 8-A12B (2), EFFECT (2), PRE 14A (2), PX14A6G (2), SCHEDULE 13G/A (2), 10-K/A (1), 424B1 (1), 5 (1), CERTNYS (1), DEFC14A (1), DEFS14A (1), DFRN14A (1), NO ACT (1), POS AM (1), POSASR (1), PREC14A (1), PRES14A (1), RW (1), S-8 POS (1), SC TO-T (1), SCHEDULE 13D (1)

  • Latest filingsAnnual report (10-K) Feb 19, 2026
    Quarterly report (10-Q) Jul 30, 2026
    Proxy statement (DEF 14A) Apr 15, 2026
    Latest 8-K (8-K) Sep 16, 2026

Securities registered for trading

ClassSymbolExchange
Common Stock (par value $.01 per share)MLMNew York Stock Exchange

From the cover page of the 10-K filed Feb 19, 2026 (Section 12(b) of the Exchange Act).17

Risk factors and legal proceedings

The risks Martin Marietta Materials names in Item 1A of its 10-K filed Feb 19, 2026: 32 risks under these headings, as written.17

  • Industry Risk Factors
  • Our business depends on construction activity, which is cyclical and sensitive to macroeconomic, funding and operating conditions.
  • Widespread declines in aggregates pricing could adversely affect our business, financial condition, and results of operations.
  • Our Building Materials business is seasonal and sensitive to weather and climate-related conditions that can significantly disrupt operations, shipments and demand.
  • Competition and Growth Risk Factors
  • Our Building Materials business depends on identifying, acquiring, permitting and developing quality aggregates reserves within an economic haul radius and our ability to mine and transport those reserves.
  • Our future growth depends in part on disciplined acquisitions and strategic investments, and we may use shares of our common stock as consideration.
  • Integrating acquired businesses may be more difficult, costly, or time-consuming than expected, and we may not realize anticipated benefits.
  • Acquisitions and divestitures may not occur on expected terms or timelines, may be more costly or complex than anticipated, and may not deliver expected benefits.
  • Economic, Political and Legal Risk Factors
  • Changes in laws, regulations, and enforcement practices, including zoning, land use, the environment, health and safety, as well as litigation relating to these matters, affect our businesses. Our operations expose us to the risk of material environmental liabilities.
  • Litigation and other legal proceedings are inherent in our operations and could result in significant costs or liabilities.
The other 23 risks
  • Legislation, regulation, and policy initiatives addressing climate change and the transition to a low-carbon economy may increase our costs, constrain operations, or alter customer demand, which could adversely impact our business and financial results.
  • Sustained high or rising interest may reduce construction demand, increase our financing costs, and adversely affect our results of operations and financial condition.
  • Changes in tax laws, interpretations, enforcement practices, and our business mix could increase our effective income tax rate, reduce deferred tax assets, or otherwise adversely affect our results of operations and cash flows.
  • Investor and stakeholder focus on climate change and sustainability matters and any related reporting obligations may increase our costs and impact our businesses.
  • Public health events including outbreaks of disease, epidemics, or pandemics, or fears of such an event and related governmental, societal and market responses could adversely affect our operations, demand for our products, costs, and financial results.
  • Personnel Risks
  • Labor disputes could disrupt operations of our businesses.
  • We depend on the recruitment and retention of qualified personnel, and our failure to attract and retain such personnel could adversely affect our business, disrupt our operations or increase costs.
  • Our reputation, ability to do business and results of operations could be impaired by improper conduct by any of our employees, agents or business partners.
  • Financial, Accounting and Cost Management Risk Factors
  • Our business requires significant and sustained capital investment; delays, cost increases, or underperformance on capital projects, or constraints on funding, could adversely affect our operations, competitiveness, and financial results.
  • Unexpected equipment failures, catastrophic events and scheduled maintenance may lead to production curtailments or shutdowns.
  • Our earnings are affected by the application of accounting standards and our critical accounting policies, which involve subjective judgments and estimates by our management. Our estimates and assumptions could be wrong.
  • The adoption of new accounting standards may affect our financial results.
  • Impairment charges could have a material adverse effect on our financial results.
  • Credit-market stress and tighter financing conditions could reduce construction demand, slow customer payments, constrain our liquidity, and increase our cost of capital.
  • Our Specialties business faces currency risks from its overseas activities.
  • Our ready-mixed concrete, asphalt and paving operations present additional risks to our business.
  • Investment returns on our pension assets may be lower than expected, or interest rates may decline, requiring us to make significant additional cash contributions to our benefit plans.
  • Suppliers, Raw Materials and Energy Costs Risk Factors
  • Volatility or shortages in fuel, energy and raw materials can increase costs, disrupt operations, and adversely affect our results.
  • Cement is sensitive to supply and price volatility.
  • Our Specialties business depends in part on the steel industry and the supply of reasonably priced fuels.
  • Cyber and Information Security Risk Factors
  • We depend on information technology; cybersecurity, data-protection, and systems-reliability risks — including at our third party vendors — could disrupt operations, compromise data, increase costs, or otherwise adversely affect our business and results.
  • Other Risk Factors
  • Delays or interruptions in shipping products of our businesses could affect our operations.
  • Our articles of incorporation and bylaws and North Carolina law may inhibit a change in control that you may favor.

Legal proceedings

From time to time, claims of various types are asserted against the Company arising out of its operations in the normal course of business, including claims relating to land use and permits, safety, health, and environmental matters (such as noise abatement, blasting, vibrations, air emissions and water discharges). Such matters are subject to many uncertainties, and it is not possible to determine the probable outcome of, or the amount of liability, if any, from these matters. In the opinion of management of the Company (which opinion is based in part upon consideration of the opinion of counsel), based upon currently-available facts, it is remote that the ultimate outcome of any litigation and other proceedings will have a material adverse effect on the overall results of the Company's operations, its cash flows or its financial condition. However, management cannot assure that an adverse outcome in any of such litigation would not have a material adverse effect on the Company or its operating segments.

The Company was not required to pay any penalties in 2025 for failure to disclose certain “reportable transactions” under Section 6707A of the Internal Revenue Code.

See also Note N: Commitments and Contingencies of the Notes to Financial Statements of the Company’s consolidated financial statements included under Item 8, Financial Statements and Supplemental Data of this Form 10-K and the Environmental Regulation and Litigation section included under Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations of this Form 10-K.

The opening of Item 3, Legal Proceedings.17

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