---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-034945"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2023-07-27T23:59:59+00:00"
generated_at: "2026-06-13T01:55:36.559594+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta Q2 revenue record $1.82B; raises FY adjusted EBITDA guidance to $2.0-2.1B

## Summary
- Second-quarter total revenues $1.82B (+10.9% YoY); diluted EPS from continuing ops $5.60.
- Aggregates gross profit record $370.9M (+20.7%); pricing up 18.6% despite shipments down 5.7%.
- Cement gross profit record $93.3M (+84.0%); pricing up 21.8% on 1.1M tons shipped.
- Full-year adjusted EBITDA guidance raised to $2.0-2.1B; midpoint +28% YoY.
- YTD cash from operations $518.5M; returned $232.5M to shareholders via dividends and buybacks.

## SEC filing metadata
- accession: 0000950170-23-034945
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2023-07-27T23:59:59+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/916076/000095017023034945/0000950170-23-034945-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095017023034945/mlm-20230727.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-034945
- JSON: https://secwatch.observer/filing/0000950170-23-034945.json
- Plain text: https://secwatch.observer/filing/0000950170-23-034945.txt

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