3.31.21 ER 8-K

Company

MARTIN MARIETTA MATERIALS INC

Filed

May 4, 2021

Period of Report

May 4, 2021

Accession Number

0001564590-21-022984

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 →