---
schema_version: "secwatch.filing_event.v1"
accession: "0000950157-26-000837"
form_type: "8-K"
ticker: "MLM"
cik: "0000916076"
company_name: "MARTIN MARIETTA MATERIALS INC"
filed_at: "2026-08-04T20:52:46+00:00"
generated_at: "2026-08-04T20:54:07.156670+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Martin Marietta promotes Michael J. Petro to EVP, CFO with $750K base salary

## Summary
- Michael J. Petro promoted to Executive Vice President, Chief Financial Officer effective August 4, 2026.
- Base salary $750,000; target annual incentive 100% of base; target long-term incentive 260% of base.
- One-time RSU grant of $5,000,000 vesting ratably on 6th, 7th, 8th anniversaries.
- Severance: three times base salary plus target bonus on termination without cause or for good reason; three-year non-compete.
- Employment Protection Agreement provides change-of-control severance equal to three times annual compensation.

## SEC filing metadata
- accession: 0000950157-26-000837
- form_type: 8-K
- ticker: MLM
- cik: 0000916076
- company_name: MARTIN MARIETTA MATERIALS INC
- filed_at: 2026-08-04T20:52:46+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/916076/000095015726000837/0000950157-26-000837-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/916076/000095015726000837/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950157-26-000837
- JSON: https://secwatch.observer/filing/0000950157-26-000837.json
- Plain text: https://secwatch.observer/filing/0000950157-26-000837.txt

## Key facts
- Executive change
  Michael J. Petro changed role as Executive Vice President, Chief Financial Officer at MARTIN MARIETTA MATERIALS INC.
  - Action: promoted
  - Role: Executive Vice President, Chief Financial Officer
  source text: On August 4, 2026, Martin Marietta Materials, Inc. (the “Company”) announced that the Company has promoted Michael J. Petro to Executive Vice President, Chief Financial Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/916076/000095015726000837/0000950157-26-000837-index.htm

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