Martin Marietta extends $800M revolver maturity to Dec 21, 2030

MARTIN MARIETTA MATERIALS INC

Extended $800M unsecured revolver maturity from Dec 2029 to Dec 2030 via Loan Modification No. 4.
Consent fee of 0.02% of commitment paid to extending lenders; facility size unchanged.
Amendment effective Dec 19, 2025; all existing lenders extended their commitments.
No changes to financial covenants, interest rate margins, or facility terms beyond maturity.

item 1.01 item 2.03 item 9.01

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