An anonymous reader quotes a report from Reuters: Activist hedge fund Starboard Value LP moved on Thursday to overthrow the entire board of Yahoo Inc, including Chief Executive Marissa Mayer, who has struggled to turn around the company in her nearly four years at the helm. Starboard, which has been pushing for changes at Yahoo since 2014 and owns about 1.7 percent of the company, said it would nominate nine candidates for the board. The proxy fight comes as Yahoo is pressing ahead with an auction of its core Internet business, which includes search, mail and news sites. Yahoo and Starboard could still come to an agreement before the company's annual meeting, expected to be in late June. If they cannot avoid a proxy fight and the Yahoo board election is taken to a shareholder vote, attention will swing to the large mutual and index funds that own the stock and will carry heavy weight in the final tally. Yahoo and Starboard representatives met on March 10 to discuss ways the two sides could avoid a proxy fight, according to people familiar with the matter. But those talks broke down, in part because Starboard was upset by Yahoo's announcement that same day that it appointed two new board directors, these people say.