The Ricketts family is considering selling some of their shares in the Chicago Cubs to help finance a proposed $500 million renovation of Wrigley Field and redevelopment around the stadium, including a plaza and hotel.

The family purchased the Cubs and related interests for $845 million more than four years ago.

The ownership group has hired Galatioto Sports Partners, the firm that helped them buy the team. GSP already has begun to talk to high net worth individuals with the goal of raising capital through as few investors as possible, according to sources.

The Ricketts own 95 percent of the Cubs, with the Tribune Co., which sold the team to the family, owning the rest.