 Radnor, Pennsylvania--Newsfile Corp. - September 4, 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 against Ardelyx on behalf of those who purchased or acquired Ardelyx securities between August 6, 2020 and July 19, 2021, inclusive the Class Period.Lead Plaintiff Deadline: September 28, 2021Website: Contact: James Maro, Esq. 484 270-1453 Toll... 