Recent Security Class Actions Sign Up Today April 22, 2016 Horsehead Holding Corp. (NASDAQ: ZINC) Company Name:Horsehead Holding Corp.Stock Symbol:NASDAQ: ZINCClass Period Start:02/25/2014Class Period End (inclusive):02/02/2016Filing Deadline:06/21/2016 Post navigation Previous: Previous post: Insys Therapeutics, Inc. (NASDAQ: INSY)Next: Next post: MERCEDES BENZ GROUP AG (US TRADING VENUE: DDAIF) FREE Real Time Class Action Monitoring for ALL of Your Investment Accounts No Matter Your Brokerage,We have you Covered Sign Up Today