Core Viewpoint - Hagens Berman is investigating Fiserv, Inc. following reports that the company will not meet financial forecasts set by its former CEO, Frank Bisignano, amid demands for information from Senate Democrats [1] Group 1 - The investigation is prompted by a report from The Wall Street Journal on November 7, 2025, regarding Fiserv's financial performance [1] - Senate Democrats are seeking information related to the company's former CEO and Chairman, Frank Bisignano, in light of the financial forecast shortfall [1] - Hagens Berman is encouraging Fiserv investors who have experienced significant losses to come forward and report their losses [1]