AMEREN CORPORATION 8-K, DATED JUNE 5, 2009

Company

Ameren Illinois Co

Filed

June 5, 2009

Period of Report

June 5, 2009

Accession Number

0001002910-09-000143

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 →