Hagens Berman Investigates Expanded Class Period, Reminds Investors of Deadline in Class-Action Lawsuit against Dendreon

SEATTLE--(EON: Enhanced Online News)--Hagens Berman Sobol Shapiro LLP today announced it is investigating whether to expand the Class Period alleged in the lawsuit it filed against Dendreon (NASDAQ:DNDN) to include investors who purchased DNDN securities between August 3, 2010, and August 3, 2011. Hagens Berman filed its lawsuit on August 5, 2011, in the United States District Court for the Western District of Washington. The suit seeks to recover damages on behalf of all purchasers of the commo a style='fon