Anthem, Inc. grew out of two Indianapolis-based corporations formed in 1944 and 1946 as mutual insurance companies. Those two companies were created to provide health insurance to residents of Indiana as Blue Cross of Indiana and Blue Shield of Indiana. They eventually merged to form Blue Cross and Blue Shield of Indiana. In October 2001, Anthem demutualized and conducted an initial public offering of common stock. Anthem, Inc. merged with WellPoint Health Networks in 2004. At the time of the merger, the parent company assumed the name WellPoint, Inc. In December 2014, WellPoint changed its name to Anthem, Inc.