Monte Paschi Chairman Alessandro Profumo and CEO Fabrizio Viola

Monte Paschi Chairman Alessandro Profumo and CEO Fabrizio Viola

Alessia Pierdomenico/Bloomberg

Undisclosed losses from financings carried out in previous years forced Chief Executive Officer Fabrizio Viola, right, and Chairman Alessandro Profumo, left, to seek additional state aid and prompted demands from regulators for a deeper reorganization of the world’s oldest bank.