MLM-ER8K-2018-0331

Company

MARTIN MARIETTA MATERIALS INC

Filed

May 8, 2018

Period of Report

May 8, 2018

Accession Number

0001564590-18-011686

An 8-K is a current report used to announce material events that shareholders should know about — such as earnings releases, mergers, executive changes, or bankruptcy. Learn more about 8-K filings →