FORM 8K 05/04/10

Company

ALLIANT ENERGY CORP

Filed

May 4, 2010

Period of Report

May 4, 2010

Accession Number

0000352541-10-000013

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 →