---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-104539"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2025-08-07T23:59:59+00:00"
generated_at: "2026-05-17T18:45:50.839213+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta Q2 EPS $5.43, revenue $1.81B; raises FY 2025 Adjusted EBITDA guidance

## Summary
- Record Q2 aggregates gross profit of $430M (+9% YoY) and gross margin 33% (+94 bps).
- Aggregates ASP rose 7.4% to $23.21/ton; volumes down 0.6% to 52.7M tons.
- Magnesia Specialties posted record Q2 revenue of $90M and gross margin of 40%.
- Completed acquisition of Premier Magnesia; asset exchange with Quikrete for 20M-ton annual aggregates and $450M cash, closing Q1 2026.
- FY 2025 Adjusted EBITDA guidance raised to $2.25-$2.35B midpoint $2.30B.

## SEC filing metadata
- accession: 0000950170-25-104539
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2025-08-07T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095017025104539/0000950170-25-104539-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095017025104539/mlm-20250807.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-104539
- JSON: https://secwatch.observer/filing/0000950170-25-104539.json
- Plain text: https://secwatch.observer/filing/0000950170-25-104539.txt

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