This is being reported on Google finance as "news" - dated 6/26/13, but within the article, it's dated 2/1/11. Not sure if it's the original class action suit and someone managed to get it posted on Google to scare off the uninitiated????

http://www.businessreviewusa.com/press_releases/izard-nobel-llp-announces-class-action-lawsuit-against-mannkind-corporation