[1/3] The logo of the Times Square Disney store is seen in Times Square, New York City, U.S. December 5, 2019.
Peltz, a billionaire activist who operates via his Trian Partners hedge fund, called for Disney to cut costs and turn a profit at its Disney+ streaming business, which has been losing money despite expanding at a fast clip.
Its shares sank last year as losses deepened in its streaming business, and the price is now less than half the stock's 2021 high.
Disney, Trian said, had overpaid for the assets of 21st Century Fox and bid aggressively for pay-TV giant Sky PLC.
Disney said Trian would file with the Securities and Exchange Commission on Thursday to elect Peltz for a board seat in opposition to the company's nominees.