Still, Saks has lagged behind its peers in the luxury sector. It has been trying to keep up with its rivals Neiman Marcus and Nordstrom, which have performed well since the recession.
Hudson's Bay will pay US$16 a share for Saks, a 5 per cent premium over the company's Saturday closing price of US$15.31.
The acquisition will marry two storied retailers. Hudson's Bay was founded in 1670 as a trading firm for furs and other goods. It is considered the oldest company in operation in North America.
Founded in 1924 by Horace Saks and Bernard Gimbel, Saks' flagship store on Fifth Ave in New York City is a landmark of retailing and sits on some of the most valuable real estate in the world.
The company employs about 15,000 people across 41 stores.
News of the deal comes a little over a month after first reports that Hudson's Bay was interested in buying Saks.