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Martin Marietta Materials 8-K Report, Material Agreement (Dec 19, 2025)

Reports
Material Agreements·Financial Events·Exhibits & Filings
Filing Date
Filed December 19, 2025
Period End
December 19, 2025
Security
MLM
In the record · 2016–202610-K1210-Q328-K141

MLM filed 12 annual reports (10-K), 32 quarterly reports (10-Q) and 141 current reports (8-K) between 2016 and 2026.

  1. Material agreement8-K · Sep ’18Sep ’18
  2. Leadership change8-K · Nov ’20Nov ’20
  3. Leadership change8-K · Dec ’22Dec ’22
  4. Material agreement8-K · Dec ’24Dec ’24

Summary

Summary of the 8-K filed December 19, 2025. Cited figures are marked; the original filing is the authoritative source.

Martin Marietta Materials, Inc. filed this Form 8-K on December 19, 2025 to report that it entered into Loan Modification No. 4 and Extension Agreement with JPMorgan Chase Bank, N.A.

(as administrative agent), the lenders party thereto, and related parties. The agreement amends the Corporation's $800,000,000a five-year senior unsecured revolving credit facility, the Credit Agreement. The principal change in the amendment is an extension of the maturity date of loans advanced under the Credit Agreement to December 21, 2030.

The filing states that the amendment also makes other, unspecified changes to the Credit Agreement, and it provides the full text as Exhibit 10.1, incorporated by reference. The filing also includes the cover page of the report in Inline XBRL format. The Item 2.03 disclosure about the creation of a direct financial obligation is incorporated by reference from Item 1.01, so the filing's substance is the revolving credit facility amendment and its extended maturity.

Key Highlights

  1. Entered into Loan Modification No. 4 and Extension Agreement on December 19, 2025 for the $800,000,000 senior unsecured revolving credit facility
  2. Maturity date of loans under the Credit Agreement extended to December 21, 2030
  3. JPMorgan Chase Bank, N.A. serves as administrative agent; Deutsche Bank Securities Inc., PNC Bank, Truist Bank and Wells Fargo Bank serve as co-syndication agents
  4. Amendment also makes other changes to the Credit Agreement, described in the filing only as 'among other things'
  5. Full amendment filed as Exhibit 10.1 and incorporated by reference
  6. Item 2.03 direct financial obligation disclosure is incorporated by reference from Item 1.01
  7. Filing includes the report's cover page in Inline XBRL format

Frequently Asked Questions

  1. What did Martin Marietta change in its revolving credit facility?

    The company entered into Loan Modification No. 4 and Extension Agreement with JPMorgan Chase Bank, N.A. and the lenders. The agreement extends the maturity date of loans advanced under the $800,000,000 five-year senior unsecured revolving credit facility to December 21, 2030, and makes other changes the filing does not detail.

  2. What is the size and structure of the facility?

    The facility is a $800,000,000 five-year senior unsecured revolving credit facility. JPMorgan Chase Bank, N.A. is administrative agent, and Deutsche Bank Securities Inc., PNC Bank, National Association, Truist Bank and Wells Fargo Bank, National Association are co-syndication agents and lenders party to the agreement.

  3. Does the filing describe a new borrowing?

    The filing discloses the amendment under Item 2.03 by incorporation from Item 1.01. It describes an extension and modification of the existing Credit Agreement and does not state a specific borrowing amount.

  4. Where can investors find the full terms of the amendment?

    The full text of the amendment is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated into the filing by reference. The filing states that its description of the amendment and Credit Agreement is qualified in its entirety by the actual terms of those documents.