Stanton, 60, will replace Howard Lincoln as the Mariners' chairman and CEO. He is regarded as a pioneer in the wireless industry and is the former chairman of McCaw Cellular and Clearwire corporations, while currently serving on the board of directors for Microsoft, Costco and Columbia Sportswear.
Lincoln, 76, was a key member in the group credited with saving baseball in Seattle in 1992, when, as chairman of Nintendo of America, he helped broker the purchase of the team by majority owner Hiroshi Yamauchi, the chairman of Japan-based Nintendo.
Nintendo will retain 10 percent of its stake in the franchise as well as the regional ROOT Sports Network, but controlling interest in both of those entities will now lie with Stanton and the group of 17 minority investors.