The automaker has agreed to pay $1 billion for Audi in a deal that could close within weeks.
The Detroit News reported the terms on Wednesday.
The deal comes a week after the company agreed to buy a controlling stake in the carmaker from a group led by billionaire investor Warren Buffett.
Ford shares closed down $0.2 at $1,254.80, while its stock has dropped as much as 6% in the past week.
Ford, a carmaker founded in 1865, is the world’s biggest auto maker.
Its cars, trucks and SUVs are popular in the U.S. and elsewhere.
The company reported a $3.5 billion loss in the fiscal fourth quarter.