 New York, New York--Newsfile Corp. - November 4, 2020 - Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of the securities of Zosano Pharma Corporation NASDAQ: ZSAN between February 13, 2017 and September 30, 2020, inclusive the Class Period. The lawsuit seeks to recover damages for Zosano investors under the federal securities laws.To join the Zosano class action, go to or... 