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Form 8-K · Current Report · Filed 2026-09-16

Martin Marietta Materials Extends Credit Facility Maturity Date

On September 15, 2026, Martin Marietta Materials, Inc.

Filer
Martin Marietta Materials, Inc. MLM · NYSE
Filed
Accession
0000950157-26-001024
CIK
0000916076
Signal
Medium impactBasic Materials

Details

and its subsidiary Martin Marietta Funding LLC entered into the Eighteenth Amendment to their Credit and Security Agreement with Truist Bank. The amendment extends the scheduled maturity date of the $500 million trade receivables securitization facility to September 15, 2027. The facility can be increased up to $700 million subject to certain conditions. The amendment also includes an amortization event related to a payment default or acceleration of one of the Corporation's material debt agreements.

Items reported

Item events

Reported Item

Credit Facility Entered

Market reaction

Close before filing

$506.81

Since filing

+0.0%

Latest close

$506.81

What happened, not what will happen — closing prices around the filing date.

Precedent

Previous filings from MLM reporting the same item, with the next session's move:

Insider tape

Within 45 days of this filing, MLM insiders reported 6 Form 4 transactions — net selling of $90K.

Full MLM insider history →

About Martin Marietta Materials, Inc.

Martin Marietta Materials, Inc. is a natural resource-based building materials company focused on supplying essential construction materials across the United States. The company primarily provides aggregates such as crushed stone, sand, and gravel through an extensive network of quarries and distribution yards, serving infrastructure, nonresidential, and residential construction markets. These aggregates are also used in railroad ballast, as well as agricultural, utility, and environmental applications. Martin Marietta Materials operates through regional aggregates groups and complementary businesses in cement, asphalt, and ready-mixed concrete, integrating its materials into downstream products. Its cement business produces Portland and specialty cements, while its magnesia specialties segment manufactures magnesia-based chemical products and dolomitic lime for industrial, agricultural, environmental, and steel industry customers. Headquartered in Raleigh, North Carolina, Martin Marietta Materials plays a significant role in supporting large-scale construction and infrastructure activity in key U.S. markets.

Exchange NYSE Industry Building Materials Company website ↗

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