PHILADELPHIA, Dec. 15, 2025 /PRNewswire/ -- National plaintiffs' law firm Berger Montague PC announces that a class action lawsuit against Fiserv, Inc. (NASDAQ: FISV) (NYSE: FI) ("Fiserv" or the "Company") has been filed on behalf of investors who purchased Fiserv shares during the period of July 23, 2025 through October 29, 2025 (the "Class Period"). For more information or to discuss your rights, please contact: Andrew Abramowitz Senior Counsel Berger Montague (215) 875-3015 [email protected] Caitlin Ador ...