Mediobanca has reported its major shareholders, Delfin and the Del Vecchio family, along with Francesco Gaetano Caltagirone, to the European Central Bank (ECB) over concerns of coordinated actions to gain control of Mediobanca, Monte dei Paschi (MPS), and Generali. Mediobanca alleges that these shareholders, holding stakes of 9.8%, 8%, and 7% respectively in MPS, may be acting in concert without proper disclosure, potentially violating regulatory norms. The bank's move follows a hostile takeover bid from MPS, which seeks to acquire Mediobanca. Mediobanca holds a 13% stake in Generali, and the ECB's decision, expected by June, could significantly impact the outcome of the bid and the governance of Generali. Separately, Italy's government has announced plans to invest €200 million in the nuclear energy startup Newcleo. The company specializes in advanced technologies, including lead-cooled fourth-generation reactors, emphasizing the government's focus on innovative nuclear energy solutions.