MARTIN MARIETTA MATERIALS

Company

MARTIN MARIETTA MATERIALS INC

Filed

April 20, 2007

Period of Report

April 19, 2007

Accession Number

0000950144-07-003584

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 →