MARTIN MARIETTA MATERIALS INC
Public company- Headquarters
- RALEIGH, North Carolina
- Ticker
- MLM
- CIK
- 0000916076
WARN notices since 2024
Workers affected since 2024
Executive changes, last 12 months
Last event
Workers affected over time
Cumulative workers in WARN notices since 2024
Not enough notices to chart yet.
Leadership
| Role and person | Since | Change |
|---|---|---|
| directorPhilipp Niemann | Aug 24, 2026 | Appointed |
| CFOMichael J. Petro | Aug 4, 2026 | Appointed |
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- Executive appointment
director appointed: Philipp Niemann
Philipp Niemann was named director of MARTIN MARIETTA MATERIALS INC, effective August 21, 2026. The company reported the change in an 8-K that cites Item 5.02.
Source: SEC 8-K, filed Aug 24, 2026Role: director
- Executive appointment
CFO appointed: Michael J. Petro
Michael J. Petro was named Executive Vice President, Chief Financial Officer of MARTIN MARIETTA MATERIALS INC, effective August 4, 2026. The company reported the change in an 8-K that cites Item 5.02.
Source: SEC 8-K, filed Aug 4, 2026Role: Executive Vice President, Chief Financial Officer
- Plant closure
Plant closure: Cave-in-Rock, IL
Martin Marietta Materials, Inc. filed a WARN notice with the Illinois WARN list on May 5, 2006 covering 83 workers at Route 1 Box 267, Cave-in-Rock.
Source: Illinois WARN list, filed May 5, 2006Site: Cave-in-Rock, IL
Workers affected: 83
Last verified Nov 8, 2026