70/100BMartin Marietta Materials company profile
- CEO
- C. Howard Nye
- Employees
- 9,600
- Headquarters
- 4123 Parklake Avenue, Raleigh, NC 27612, US
- Sector
- Basic Materials
- Industry
- Construction Materials
- IPO date
- 17 Feb 1994
- Stock exchange
- NYSE
- ISIN
- US5732841060
Website:martinmarietta.com
About the company
Martin Marietta Materials, Inc. functions as a company specializing in natural resource-derived building materials. This enterprise delivers a wide range of aggregates and other heavy construction components to the building industry, serving both domestic and international markets. Its product portfolio includes foundational raw materials like crushed stone, sand, and gravel, in addition to manufactured items such as ready-mix concrete, asphalt, and comprehensive paving solutions. These offerings are essential for infrastructure projects, commercial and residential developments, and various other sectors including railroads, agriculture, utilities, and environmental applications. Beyond its core construction offerings, Martin Marietta also produces magnesia-based chemicals, which are utilized in industrial, agricultural, and environmental contexts. The company further supplies dolomitic lime, primarily for steel manufacturing and soil stabilization. Its broader chemical products contribute to areas such as flame retardants, wastewater treatment, and pulp and paper production, among other environmental uses. Established in 1939, the firm's main office is situated in Raleigh, North Carolina.
Employees
Martin Marietta Materials had about 9,600 employees at the end of fiscal year 2025 (31 December 2025), by its annual report. That is 2.1% more than a year before.
Employees at each fiscal year end, as the company reports them in its annual report (10-K); revenue and net income per employee are the fiscal year's over that count.
Who owns Martin Marietta Materials
Institutions such as funds, banks and insurers held 99.2% of Martin Marietta Materials's shares on 30 June 2026, 1,094 of them reporting holdings to the SEC; the rest is held by individual investors and other shareholders.
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
Common questions about Martin Marietta Materials
Source: Financial Modeling PrepVerified against SEC filings