Yahoo! Inc. Chief Executive Officer Marissa Mayer, who has overseen an almost 150 percent stock rally fueled by her company’s stake in Alibaba Group Holding Ltd., is poised to pare that ownership -- a move that threatens to diminish the U.S. Web portal’s investor appeal.
Yahoo! Inc. surged after firing Chief Executive Officer Carol Bartz, whose reign was marked by falling sales, lost share to rivals and a dispute with Asian partners that stunted growth in the world’s largest Web market.