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.
| 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 |
| Christopher W. Samborski | Executive Vice President and Chief Operating 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 |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| May 15, 2026 | S-8 | Securities to be offered to employees in employee benefit plans |
| May 14, 2026 | 8-K | Current Report |
| Apr 30, 2026 | 10-Q | Quarterly Report |
| Apr 30, 2026 | SCHEDULE 13G | Filing |
| Apr 30, 2026 | 8-K | Current Report |
| Apr 29, 2026 | SCHEDULE 13G | Filing |
| 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 |