 Radnor, Pennsylvania--Newsfile Corp. - September 14, 2021 - The law firm of Kessler Topaz Meltzer Check, LLP reminds Ardelyx Inc. NASDAQ: ARDX Ardelyx investors that a securities fraud class action lawsuit has been filed on behalf of those who purchased or acquired Ardelyx securities between August 6, 2020 and July 19, 2021, inclusive the Class Period.Investor Deadline Reminder: Investors who purchased or acquired Ardelyx securities during the Class Period may, no later... 