# Martin Marietta (MLM) — Overview

MLM · NYSE · Stock

Canonical page: https://www.lighthorse.io/tickers/mlm

## Price

Last close $492.77 on Oct 15, 2026. 52-week range $471.10 – $708.11.

## Company profile

Martin Marietta is a leading US producer of construction aggregates, having produced roughly 200 million tons in 2025. Its aggregate reserves represent approximately 85 years of supply at 2025 production levels. Over the past several years, the company has increased its exposure to aggregates while reducing its presence in cement and downstream businesses such as concrete and asphalt. More recently, Martin Marietta expanded into an aggregate-adjacent business through its acquisition of Lhoist North America, the largest US producer of lime. The company operates across 28 states, with smaller operations in Canada and the Bahamas.

## Frequently Asked Questions

### How do I buy stock in Martin Marietta (MLM)?

MLM trades commission-free with a Light Horse Securities brokerage account — from the mobile app, the web at [Light Horse Dashboard](https://portal.lighthorse.io), the trading API, or an [AI agent connected over MCP](/instructions/ai/claude). The trade panel on this page places the order once you are signed in.

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Data provided by [AInvest](https://www.ainvest.com).