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Martin Marietta Materials SEC Filings

NYSE: MLMIndustrialsMining & Quarrying of Nonmetallic Minerals (No Fuels)USD

478.35-3.22 (-0.67%)

At close: Oct 9, 4:01 PM ET · Delayed 15 min

Martin Marietta Materials filing overview

This page lists 60 recent SEC filings by Martin Marietta Materials (MLM), including 35 4, 15 8-K, 3 SCHEDULE 13G, 2 10-Q. The most recent quarterly report (10-Q) was filed on Jul 30, 2026. The latest current report (8-K), used to disclose material events such as earnings releases and executive changes, was filed on Sep 16, 2026.

Form 10-K is the audited annual report, 10-Q the quarterly report, 8-K covers material events, and Form 4 reports insider transactions. All documents link directly to SEC EDGAR.

Summary generated from market data by MetaCap's automated system. Methodology

MLM SEC filings

Martin Marietta Materials SEC filings
FiledFormDescriptionDocument
Sep 16, 20268-KEntry into a Material Definitive AgreementView on EDGAR
Sep 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Sep 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Sep 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Sep 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 24, 20268-KEntry into a Material Definitive Agreement; Completion of Acquisition or Disposition of Assets; Unregistered Sales of Equity Securities; Departure or Appointment of Directors or Officers; Compensatory Arrangements; Regulation FD DisclosureView on EDGAR
Aug 24, 2026SCHEDULE 13DBeneficial ownership report (activist)View on EDGAR
Aug 18, 20268-KEntry into a Material Definitive Agreement; Termination of a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementView on EDGAR
Aug 14, 20268-KEntry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement; Other EventsView on EDGAR
Aug 13, 2026424B2ProspectusView on EDGAR
Aug 12, 20268-KEntry into a Material Definitive Agreement; Regulation FD DisclosureView on EDGAR
Aug 10, 20268-KOther EventsView on EDGAR
Aug 10, 2026424B5ProspectusView on EDGAR
Aug 7, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Aug 5, 20268-KOther EventsView on EDGAR
Aug 4, 20264Statement of changes in beneficial ownershipView on EDGAR
Aug 4, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Jul 30, 20268-KResults of Operations and Financial Condition; Regulation FD DisclosureView on EDGAR
Jul 30, 202610-QQuarterly reportView on EDGAR
Jul 15, 20268-KEntry into a Material Definitive Agreement; Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementView on EDGAR
Jun 29, 20268-KRegulation FD DisclosureView on EDGAR
Jun 29, 20268-KEntry into a Material Definitive Agreement; Unregistered Sales of Equity Securities; Other EventsView on EDGAR
Jun 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Jun 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Jun 2, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 18, 20264Statement of changes in beneficial ownershipView on EDGAR
May 14, 20268-KDeparture or Appointment of Directors or Officers; Compensatory Arrangements; Submission of Matters to a Vote of Security HoldersView on EDGAR
May 5, 20264Statement of changes in beneficial ownershipView on EDGAR
Apr 30, 20268-KResults of Operations and Financial Condition; Regulation FD DisclosureView on EDGAR
Apr 30, 202610-QQuarterly reportView on EDGAR
Apr 30, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Apr 29, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Apr 27, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Apr 15, 2026DEF 14ADefinitive proxy statementView on EDGAR
Mar 27, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Mar 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 3, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 2, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 25, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 24, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 24, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 24, 20264Statement of changes in beneficial ownershipView on EDGAR
Feb 24, 20264Statement of changes in beneficial ownershipView on EDGAR

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