Sneijder is keen on a return to Italy this month.
"I must say Sneijder is a talented player and one whose characteristics are congenial with our tactical system," said Marotta.
"There isn't a genuine negotiation in place yet, as we only got information on the player's intentions. If we have the opportunity to get him on our terms, then that's fine.
"Galatasaray want big money that we absolutely do not intend on spending. In the January market you seek opportunities. We already have a satisfying squad, so if impressive opportunities arise, then we will grab them, but at the moment there are none.
"We are not in an emergency situation, so are in no rush to buy."