secwatch.observer — SEC 8-K summary
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Issuer:     MARTIN MARIETTA MATERIALS INC (MLM)
CIK:        0000916076
Form:       8-K
Filed at:   2026-08-24T11:33:53+00:00
Accession:  0000950157-26-000946
Event type: m_and_a
Sentiment:  positive
Materiality: 0.90
Item codes: 1.01, 2.01, 3.02, 5.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Martin Marietta closes $13.5B Lhoist North America acquisition; adds director
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- Completed LNA acquisition Aug 21, 2026 for ~$7B cash plus 10,953,543 shares valued at $6.5B (total ~$13.5B).
- Board expanded to 11; Philipp Niemann, CEO of Lhoist S.A., appointed director effective Aug 21, 2026.
- LNA Holding lock-up: 50% of shares released at 12 months, 50% at 24 months; standstill caps ownership at 18%.
- LNA adds >2 billion tons of high-quality limestone reserves; Martin Marietta now leading U.S. limestone producer.
- Company to provide updated FY2026 revenue and Adjusted EBITDA guidance with Q3 results.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/916076/000095015726000946/0000950157-26-000946-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/916076/000095015726000946/form8-k.htm
  HTML page:      https://secwatch.observer/filing/0000950157-26-000946

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