MLM-8K-20180510 IMMINENT DANGER

Company

MARTIN MARIETTA MATERIALS INC

Filed

May 10, 2018

Period of Report

April 25, 2018

Accession Number

0001564590-18-012855

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 →