The Italian is being linked with United as a replacement for Marouane Fellaini.
But the former Milan midfielder vowed to stick with the Orobici for the time being.
“Anyone would be flattered by the interest of these great teams, but I can say that I'm fine at Atalanta," he told Sky Sport Italia.
“I feel good here and I'll stay here. if something arises, the club will talk to my agent about it."