EQUITY ALERT: Rosen Law Firm Announces Filing of Securities Class Action Lawsuit Against Horsehead Holding Corp. – ZINC
NEW YORK, June 03, 2016 (GLOBE NEWSWIRE) -- Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of Horsehead Holding Corp. securities (NASDAQ:ZINC) from May 21, 2014 through February 2, …