The Serie A joint top scorer with 19 goals said he would consider his future at the end of the season following two goals in Sunday's 3-0 win over Reggina, which kept leaders Inter seven points clear.
Barcelona and Real Madrid have been linked in the media with a move for the Swede, who was frustrated by Inter flopping again in the Champions League when they lost to Manchester United in the last 16 earlier this month.
"Everyone has a price. If he decides to leave, he would also have one. No appointments have been set for the end of the season," Moratti told reporters.
"Maybe Ibrahimovic leaves for somewhere else and then Inter win the Champions League. In life sometimes you make a change and then regret it."
Inter coach Jose Mourinho said on Sunday that the club was bigger than Ibrahimovic despite his inspirational displays.
Moratti agreed with Mourinho but added: "I can't think of an Inter without Ibrahimovic."
