Martin Marietta agrees on $13.5 billion Lhoist deal, shares steady on NYSE

By Christina Vogel, Background & Management desk. Reviewed prior to publication on 2026-06-29, 12:43.

Martin Marietta Materials (US5732841060) has agreed to merge with limestone supplier Lhoist North America in a transaction valued at about 13.5 billion dollars including debt, according to a Wall Street Journal report. The deal comes as Martin Marietta shares trade on the NYSE near the 616 dollar mark after a mild recent decline, keeping the stock in the upper range of its 30 day performance band. Wall Street Journal coverage of the Lhoist merger

What the merger entails

The Wall Street Journal reports that Martin Marietta plans to finance the Lhoist North America deal with around 7 billion dollars in cash and approximately 6.5 billion dollars in Martin Marietta stock, underlining the strategic scale of the transaction. Details of the Martin Marietta financing mix The combination would significantly expand Martin Marietta’s footprint in limestone and related construction aggregates in North America, adding Lhoist’s quarry and processing network into its existing portfolio.

The reported 13.5 billion dollar enterprise value indicates a major capital allocation decision compared with Martin Marietta’s current market capitalization of around 37 billion dollars, as reflected in recent valuation snapshots. TradingKey valuation data on Martin Marietta The use of both cash and shares suggests management aims to balance leverage and equity dilution while securing control over Lhoist’s limestone assets.

Analyst stance and price levels

According to technical and valuation data, Martin Marietta shares recently closed at about 616.06 dollars, down 2.08 percent on June 26, with the stock trading between a noted resistance level near 656.97 dollars and support around 560.35 dollars. TradingKey technical overview for Martin Marietta Over the past 30 days, Martin Marietta stock has gained roughly 5.9 percent, indicating a robust short term performance backdrop for the merger announcement. TrendSpider chart data for Martin Marietta

TrendSpider also notes that Citi analyst Anthony Pettinari maintains a Buy rating on Martin Marietta and recently raised the firm’s price target from 780 to 804 dollars, underscoring an optimistic sell side view on the construction materials group. Citi analyst update referenced on TrendSpider In addition, market commentary highlights Martin Marietta as a pick on CNBC’s Halftime Report, where Joshua Brown named the company as his final trade, pointing to ongoing interest from US media and portfolio managers. Media mention of Martin Marietta on CNBC via TrendSpider

The business behind the stock

Martin Marietta Materials generates its revenues primarily from supplying aggregates, cement, ready mixed concrete and asphalt, which are used in infrastructure, commercial and residential construction across the United States. Its aggregates portfolio includes crushed stone, sand and gravel from a large network of quarries, with the company positioning itself as a key supplier for highways, airports and other public projects.

Where the shares trade now

Martin Marietta Materials shares (US5732841060) most actively trade on the NYSE under the ticker MLM, with the last verified closing price at about 616.06 dollars as of 2026-06-26, 16:00 Eastern Time. The stock currently reflects a market capitalization of around 36.99 billion dollars, positioning Martin Marietta among the larger US construction materials suppliers in listed equity markets.

Disclaimer: This article is for information purposes only and does not contain investment advice, personal recommendations or an offer to buy or sell securities. All data are based on sources considered reliable but cannot be guaranteed.