---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-017447"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2023-05-04T23:59:59+00:00"
generated_at: "2026-06-15T23:51:02.738558+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta Q1 earnings beat with record revenues, adj. EBITDA $324M; guidance at high end

## Summary
- Q1 total revenues $1.354B (+10% YoY); EPS $2.16 vs $0.39; record aggregates gross profit per ton $5.70.
- Aggregates pricing +22.6% (record); volume -0.8% due to California weather; gross margin expanded 1250bps to 26.1%.
- Cement pricing +32.2% (record); shipments -6.8% due to Texas weather; gross profit +75.4% to $47.1M, gross margin 28.0%.
- 2023 guidance: adjusted EBITDA $1.8-1.9B (consistent with high end); aggregates ASP growth 13-15%.
- Terminated sale of Tehachapi cement plant to CalPortland; divested California cement import operations on May 3, 2023.

## SEC filing metadata
- accession: 0000950170-23-017447
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2023-05-04T23:59:59+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/916076/000095017023017447/0000950170-23-017447-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095017023017447/mlm-20230504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-017447
- JSON: https://secwatch.observer/filing/0000950170-23-017447.json
- Plain text: https://secwatch.observer/filing/0000950170-23-017447.txt

## Key facts
- Earnings Releases
  MARTIN MARIETTA MATERIALS INC reported first quarter ended March 31, 2023 results: revenue Total revenues ... $ 1,354.1 ... $ 1,230.8, net income Net earnings from continuing operations attributable to Martin Marietta $ 134.3 $ 24.5, EPS Earnings per diluted share from continuing operations $ 2.16 $ 0.39. Guidance reaffirmed.
  - Period: first quarter ended March 31, 2023
  - Revenue: Total revenues ... $ 1,354.1 ... $ 1,230.8
  - Net income: Net earnings from continuing operations attributable to Martin Marietta $ 134.3 $ 24.5
  - EPS: Earnings per diluted share from continuing operations $ 2.16 $ 0.39
  - Guidance: reaffirmed
  - Result: reported results
  source text: 2023. First-Quarter Highlights (Financial highlights are for continuing operations) Quarter Ended March 31, (In millions, except per share) 2023 2022 % Change Total revenues 1 $ 1,354.1 $ 1,230.8 10.0% Gross profit $ 302.8 $ 156.1 94.0% Earnings from operations $ 196.1 $ 59.9 227.4% Net earnings from continuing operations attributable to Martin Marietta $ 134.3 $
  evidence_url: https://www.sec.gov/Archives/edgar/data/916076/000095017023017447/0000950170-23-017447-index.htm

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