---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-25-000794"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2025-09-17T23:59:59+00:00"
generated_at: "2026-05-17T06:25:50.867907+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta extends receivables facility maturity to Sep 2026, rate to SOFR+0.70%

## Summary
- Seventeenth Amendment to $400M trade receivables securitization facility executed Sept 16, 2025.
- Maturity date extended to September 16, 2026; facility can be increased to $600M.
- Borrowings now bear interest at Adjusted Term SOFR plus 0.700%.
- Amendment also updates conformed credit agreement; no change to facility limit or lender group.
- Event is routine financing amendment, no material adverse impact on liquidity.

## SEC filing metadata
- accession: 0000950157-25-000794
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2025-09-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095015725000794/0000950157-25-000794-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095015725000794/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-25-000794
- JSON: https://secwatch.observer/filing/0000950157-25-000794.json
- Plain text: https://secwatch.observer/filing/0000950157-25-000794.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.