Naturgy has submitted a request to the CNMV for authorization of a voluntary share buyback for 10% of its capital, amounting to €2.332 billion. The operation will be backed by guarantees from a consortium of banks, including CaixaBank, BBVA, BNP Paribas, and Société Générale. In a related development, Endesa has announced a share repurchase program with a maximum allocation of €2 billion, aimed at enhancing shareholder returns. The company's board approved a budget of €517 million for this initiative. Meanwhile, Criteria CaixaBank, Naturgy's largest shareholder with a 26.7% stake, has denied any ongoing negotiations with the Emirati firm Taqa regarding the sale of its shareholding. Taqa is reportedly negotiating to acquire up to a 29% stake in Naturgy to prevent a takeover.