---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-24-001462"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2024-11-01T23:59:59+00:00"
generated_at: "2026-05-30T07:11:13.988001+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta prices $1.5B dual-tranche senior note offering at 5.150% and 5.500%

## Summary
- $750M 5.150% Senior Notes due 2034 at 99.266% of par; $750M 5.500% Senior Notes due 2054 at 98.006% of par.
- Net proceeds used to repay all borrowings under revolving credit facility and trade receivables securitization; remainder for general corporate purposes, including acquisitions.
- Offering expected to close November 4, 2024; joint book-runners: Deutsche Bank, J.P. Morgan, Truist, PNC, Wells Fargo.
- Interest payable semiannually starting June 1, 2025; issued under effective shelf registration statement on Form S-3.

## SEC filing metadata
- accession: 0000950157-24-001462
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2024-11-01T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095015724001462/0000950157-24-001462-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095015724001462/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-24-001462
- JSON: https://secwatch.observer/filing/0000950157-24-001462.json
- Plain text: https://secwatch.observer/filing/0000950157-24-001462.txt

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