Form 8-K · Current Report · Filed 2026-08-24

Martin Marietta Completes Acquisition of Lhoist North America

Martin Marietta Materials, Inc. has completed its acquisition of Lhoist North America, Inc. (LNA) for approximately $7 billion in cash and 10,953,543 newly-issued shares of Martin Marietta common stock, valued at $6.5 billion. The transaction, which was previously announced, is expected to expand Martin Marietta's Specialties platform and enhance its business quality, scale, and resilience. As part of the deal, Martin Marietta entered into a shareholders agreement with LNA Holding and Financière de Gestions Internationales, which includes lock-up provisions for the newly-issued shares and designation rights for LNA Holding to appoint a director and an observer to Martin Marietta's Board. Additionally, Martin Marietta appointed Mr. Philipp Niemann, former CEO of LNA, to its Board, effective August 21, 2026. The Company expects to provide updated full-year 2026 revenue and Adjusted EBITDA guidance in connection with the release of its third-quarter financial results.