---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-014932"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2024-02-14T23:59:59+00:00"
generated_at: "2026-06-06T02:56:47.557306+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta posts record FY23 revenue $6.78B, EPS $19.32; acquires two aggregates businesses, divests Texas ops

## Summary
- Full-year 2023 revenue $6.78B (+10% YoY); diluted EPS $19.32 vs $13.70 (+41%).
- Q4 revenue $1.61B (+8.9%); EPS $4.63 vs $3.01 (+53.8%).
- Full-year Adjusted EBITDA $2.13B (+33%); aggregates unit profitability +46.4%.
- Acquired Albert Frei & Sons (Colorado) Jan 12, 2024; agreed to buy BWI Southeast (~1B tons reserves) Feb 11, 2024.
- FY24 Adj. EBITDA guidance $2.14-2.34B ($2.37B pro forma); $324M returned to shareholders in 2023.

## SEC filing metadata
- accession: 0000950170-24-014932
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2024-02-14T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095017024014932/0000950170-24-014932-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095017024014932/mlm-20240214.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-014932
- JSON: https://secwatch.observer/filing/0000950170-24-014932.json
- Plain text: https://secwatch.observer/filing/0000950170-24-014932.txt

## Key facts
- Earnings Releases
  MARTIN MARIETTA MATERIALS INC reported financial results for the fourth quarter and year ended December 31, 2023.
  - Period: the fourth quarter and year ended December 31, 2023
  - Result: reported results
  source text: On February 14, 2024, the Company announced financial results for the fourth quarter and year ended December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/916076/000095017024014932/0000950170-24-014932-index.htm

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