 On 19 June, the deal was made and Denis signed a three-year contract with the Bergamo club, for an undisclosed fee.On 27 April 2015, Denis was banned for five matches after he burst into the opposition dressing room the day before and punched Empoli defender Lorenzo Tonelli.On 30 January 2016, Denis scored on his final appearance for Atalanta, a 1–1 draw against Sassuolo, before returning to play for Independiente in Argentina.