NEW YORK (AP) — Nelson Peltz's Trian Fund Management has acquired a 7.08 percent stake in Sysco, making it the food distributor's largest shareholder.In a regulatory filing Friday, Trian said that the Houston company has underperformed and that it has met with CEO William Delaney to talk about ways to change that.Sysco, in a printed statement, confirmed the discussions with Trian and said that it expects to provide details about strategic initiatives next month.Shares of Sysco Corp.