---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-23-000383"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2023-04-21T23:59:59+00:00"
generated_at: "2026-06-16T22:00:45.364429+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta CIO John P. Mohr to retire in H2 2023

## Summary
- SVP and CIO John P. Mohr will retire in the second half of 2023.
- No replacement or exact retirement date has been announced.
- Mohr's departure is described as a retirement, not an abrupt resignation.

## SEC filing metadata
- accession: 0000950157-23-000383
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2023-04-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/0000950157-23-000383-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-23-000383
- JSON: https://secwatch.observer/filing/0000950157-23-000383.json
- Plain text: https://secwatch.observer/filing/0000950157-23-000383.txt

## Key facts
- Executive change
  John P. Mohr departed as Senior Vice President and Chief Information Officer at MARTIN MARIETTA MATERIALS INC.
  - Action: retiring
  - Role: Senior Vice President and Chief Information Officer
  source text: On April 21, 2023, Martin Marietta Materials, Inc. (the “Company”) announced that John P. Mohr, Senior Vice President and Chief Information Officer will be retiring from the Company in the second half of 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/0000950157-23-000383-index.htm

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