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MARTIN MARIETTA MATERIALS INC — Investor Relations & Filings

Ticker · MLM ISIN · US5732841060 LEI · 5299005MZ4WZECVATV08 US Manufacturing
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Filings indexed 1,752 across all filing types
Latest filing 2026-05-15 Regulatory Filings
Country US United States of America
Listing US MLM

About MARTIN MARIETTA MATERIALS INC

https://www.martinmarietta.com/

Martin Marietta Materials Inc. is a leading supplier of natural resource-based building materials. As an aggregates-led company, its primary products include crushed stone, sand, and gravel. The company also provides a range of heavy-side building materials, such as cement, ready-mixed concrete, and asphalt. These materials are fundamental components for the construction of infrastructure, as well as for non-residential and residential projects, serving as the foundational resources for development.

Recent filings

Filing Released Lang Actions
REGISTRATION STATEMENT
Regulatory Filings Classification · 84% confidence The document is a Securities and Exchange Commission registration statement on Form S-8 for Martin Marietta Materials, Inc., registering shares under an employee stock-based award plan. It is a compliance/registration filing rather than an annual or quarterly report, earnings release, proxy, or other transaction announcement category. It does not present financial statements or correspond to an AGM, proxy, dividend notice, or M&A activity. It fits the fallback “Regulatory Filings (RNS)” category for miscellaneous SEC compliance filings.
2026-05-15 English
8-K
Declaration of Voting Results & Voting Rights Announcements Classification · 92% confidence The document is a Form 8-K current report that primarily details the final voting results from the company’s annual shareholder meeting, including director elections, auditor ratification, and plan approval. This matches the definition of Declaration of Voting Results & Voting Rights Announcements (Code: DVA).
2026-05-14 English
10-Q - MARTIN MARIETTA MATERIALS INC (0000916076) (Filer)
Interim / Quarterly Report Q1 2026
2026-04-30 English
8-K - MARTIN MARIETTA MATERIALS INC (0000916076) (Filer)
Earnings Release Classification · 95% confidence The document is a Form 8-K filed with the SEC, dated April 30, 2026, reporting the announcement of financial results for the first quarter ended March 31, 2026. It includes a press release as an exhibit and mentions an upcoming earnings conference call. The document does not contain the full financial statements or detailed financial analysis itself but rather announces the earnings release and related events. According to the rules, such a document is classified as an Earnings Release (ER) because it is the initial announcement of quarterly financial results with key highlights, not the full report or transcript. The length is under 5,000 characters, consistent with an announcement rather than a full report. Therefore, the appropriate classification is ER with high confidence.
2026-04-30 English
8-K - MARTIN MARIETTA MATERIALS INC (0000916076) (Filer)
Board/Management Information Classification · 95% confidence The document is a Form 8-K filed with the SEC, dated April 27, 2026, reporting the appointment of Christopher W. Samborski as Executive Vice President and Chief Operating Officer. The content focuses on management changes, including details of the new executive's background, compensation, and agreements. There is no financial data or report attached; it is an announcement of a management change. According to the filing definitions, announcements of changes in the company's board of directors or senior management fall under Board/Management Information (MANG). The document length is 6986 characters, sufficient to contain detailed information about the management change. Therefore, the appropriate classification is MANG with high confidence.
2026-04-27 English
ARS - MARTIN MARIETTA MATERIALS INC (0000916076) (Filer)
Annual Report
2026-04-15 English

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