---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-193931"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2026-04-30T23:59:59+00:00"
generated_at: "2026-05-15T01:28:28.931442+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta Q1 revenues +17% to $1.36B; adj EPS +14%; reaffirms FY guidance

## Summary
- Revenues $1.36B (+17% YoY); GAAP EPS $1.31 (-23%), adjusted EPS $1.93 (+14%).
- Aggregates shipments 43.9M tons (+12%); avg price $23.70/ton (flat).
- Completed asset exchange with QUIKRETE; entered deal to acquire New Frontier Materials.
- Reaffirmed full-year 2026 guidance citing strong underlying demand.

## SEC filing metadata
- accession: 0001193125-26-193931
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2026-04-30T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000119312526193931/0001193125-26-193931-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000119312526193931/mlm-20260430.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-193931
- JSON: https://secwatch.observer/filing/0001193125-26-193931.json
- Plain text: https://secwatch.observer/filing/0001193125-26-193931.txt

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