Martin Marietta prices senior notes offering to fund up to $7B cash portion of $13.5B Lhoist acquisition

Filed August 10, 2026 · ~2 min read

Key Changes

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  Martin Marietta is offering five series of senior unsecured notes (amounts and rates to be determined at pricing) to help fund the up to $7 billion cash portion of its $13.5 billion acquisition of Lhoist North America; the remaining $6.5 billion will be paid in stock.

  Use of Proceeds verify on EDGAR →
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  Pro forma for the acquisition and this offering, Martin Marietta will have approximately $13 billion of total debt outstanding as of June 30, 2026, up from $5.5 billion in new senior unsecured debt raised for the transaction.

  Risk Factors verify on EDGAR →
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  The notes include a special mandatory redemption: if the Lhoist acquisition does not close by June 15, 2027, or if the purchase agreement is terminated or publicly abandoned, Martin Marietta must redeem all notes at 101% of principal plus accrued interest.

  The Offering verify on EDGAR →