A machine learning approach to support decision in insider trading detection Piero Mazzarisi, Adele Ravagnani, Paola Deriu, Fabrizio Lillo, Francesca Medda and Antonio Russo EPJ Data Sci., 13 1 (2024) 66 Published online: 28 October 2024 DOI: 10.1140/epjds/s13688-024-00500-2