Martin Marietta Materials, Inc. (MLM)
NYSE: MLM · Real-Time Price · USD
614.04
+4.29 (0.70%)
At close: Apr 28, 2026, 4:00 PM EDT
614.04
0.00 (0.00%)
After-hours: Apr 28, 2026, 7:00 PM EDT

Company Description

Martin Marietta Materials, Inc., a natural resource-based building materials company, supplies aggregates and heavy-side building materials to the construction industry in the United States and internationally.

It operates through East Group and West Group segments. The company offers crushed stone, sand, and gravel products; ready mixed concrete and asphalt; and paving products and services for use in the infrastructure projects, and nonresidential and residential construction projects, as well as in the railroad, agricultural, utility, and environmental industries.

It also produces magnesia-based chemicals products, and dolomitic lime primarily to customers for steel production and soil stabilization.

Its chemical products are used in flame retardants, wastewater treatment, pulp and paper production, and other applications.

The company was founded in 1939 and is based in Raleigh, North Carolina.

Martin Marietta Materials, Inc.
Martin Marietta Materials logo
Country United States
Founded 1993
IPO Date Feb 16, 1994
Industry Building Materials
Sector Materials
Employees 9,600
CEO C. Nye

Contact Details

Address:
4123 Parklake Avenue
Raleigh, North Carolina 27612
United States
Phone 919 781 4550
Website martinmarietta.com

Stock Details

Ticker Symbol MLM
Exchange NYSE
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0000916076
CUSIP Number 573284106
ISIN Number US5732841060
Employer ID 56-1848578
SIC Code 1400

Key Executives

Name Position
C. Howard Nye J.D. Chairman, Chief Executive Officer, President, President of Aggregates Business and Chair of Magnesia Specialties Business
Michael J. Petro Senior Vice President and Chief Financial Officer
Robert J. Cardin Senior Vice President, Controller and Chief Accounting Officer
Jason P. Flynn Senior Vice President and Chief Information Officer
Donald A. McCunniff Executive Vice President and Chief Human Resources Officer
Suzanne Osberg Vice President of Investor Relations
George F. Schoen Executive Vice President, General Counsel and Corporate Secretary
Ron Kopplin East Division President
Kirk Light President of Cement and Southwest Ready Mix
Jacklyn Rooker Director of Investor Relations

Latest SEC Filings

Date Type Title
Apr 27, 2026 8-K Current Report
Apr 15, 2026 ARS Filing
Apr 15, 2026 DEF 14A Other definitive proxy statements
Mar 27, 2026 SCHEDULE 13G/A Filing
Feb 23, 2026 8-K Current Report
Feb 19, 2026 S-3ASR Automatic shelf registration statement of securities of well-known seasoned issuers
Feb 19, 2026 10-K Annual Report
Feb 13, 2026 8-K Current Report
Feb 11, 2026 8-K Current Report
Jan 2, 2026 8-K Current Report