Martin Marietta Materials, Inc. (MLM) is a Materials stock trading at $609.34 (as of 2026-06-18), with a market capitalization of $34.93B and a trailing P/E of 13.9. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.
Martin Marietta Materials, Inc. produces and supplies construction materials including aggregates (crushed stone, sand, and gravel), ready-mixed concrete and asphalt, paving products and related services, and Portland and specialty cement. It also manufactures magnesia-based chemicals and dolomitic lime for industrial and environmental uses, serving construction, railroad, agricultural, utility, and steel or soil-stabilization needs in the U.S. and internationally.