Rooney is currently in charge at the Championship club, who are all but certain to get relegated due to a points deduction related to financial mismanagement.
When appearing on Sky Sports' Monday Night Football, Rooney admitted that he did have some information on the takeover process.
He said: "I spoke to one [bidder] earlier before Christmas and then that didn't happen.
"I think there are three preferred bidders on the table. I know who one of them is but I haven't spoken to them. The other two I have no idea."
Now Derby's joint administrators have named US entrepreneur Chris Kirchner as their preferred bidder.
One administrator, Carl Jackson, said: "We are delighted to be able to name Mr Kirchner as the preferred bidder, which the joint administrators consider represents the best deal for creditors and one which will secure the long-term future of the club.
"The naming of our preferred bidder represents a significant milestone in the administration, and we look forward to working with Mr Kirchner and his team to complete the sale of the club."
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