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Form 8-K · Current Report · Filed 2026-08-10

Martin Marietta Materials Announces Acquisition of Lhoist North America

Martin Marietta Materials, Inc. has announced the acquisition of Lhoist North America, Inc. The transaction, which was previously disclosed on June 27, 2026, is expected to close in the third quarter of 2026, subject to customary closing conditions, including regulatory approvals. The Company announced on August 5, 2026, that it has received all necessary regulatory approvals for the transaction. The acquisition will be financed through existing cash and credit facilities.

Filer
Martin Marietta Materials Inc. MLM · NYSE
Filed
Accession
0001193125-26-341412
CIK
0000916076
Signal
High impactBasic Materials

Items reported

Item events

Reported Item

M&A Transaction Financial Instrument Agreement

Market reaction

Close before filing

$548.40

Since filing

+0.0%

Latest close

$548.40

What happened, not what will happen — closing prices around the filing date.

Precedent

Previous filings from MLM reporting the same item, with the next session's move:

Insider tape

Within 45 days of this filing, MLM insiders reported 1 Form 4 transaction — net selling of $200K.

Full MLM insider history →

About Martin Marietta Materials Inc.

Martin Marietta Materials Inc. is a leading supplier of building materials, primarily aggregates like crushed stone, sand, and gravel, as well as cement and concrete products in the United States. Its primary purpose is to support the construction industry by providing essential raw materials used in infrastructure projects, commercial and residential construction, and the development of public works like roads, bridges, and airports. Martin Marietta Materials is heavily involved in sectors such as construction, transportation, and energy, where its products are critical for foundational building and maintenance. The company plays a significant role in regional and national economic development, given the essential nature of its offerings in the construction and infrastructure sectors. With a broad geographic footprint and a diverse product line, Martin Marietta Materials holds a strategic position within the market, contributing to the durability and growth of urban and rural communities alike.

Exchange NYSE Industry Building Materials Company website ↗

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