Martin Marietta to acquire Lhoist North America for $13.5B in cash and stock

Filed June 29, 2026 · Period ending June 29, 2026 · ~2 min read

Key Changes

• high

  Martin Marietta entered into a definitive agreement to acquire Lhoist North America for $13.5 billion ($7.0B cash, $6.5B stock), valuing the lime and aggregates producer at ~15x 2025 Adjusted EBITDA including synergies.

  Item 7.01 — Regulation FD Disclosure verify on EDGAR →
• high

  The transaction is expected to be accretive to earnings and margins in the first twelve months post-close, with ~$85M in annual run-rate cost synergies targeted within two years.

  Exhibit 99.2 view on EDGAR →
• high

  Combined Net Leverage will be 3.7x at close, with management targeting a return to below 2.5x within 24 months through free cash flow generation while maintaining investment grade credit rating.

  Exhibit 99.2 view on EDGAR →