UPDATE 1-Mondelez adds activist investor Nelson Peltz to board (Reuters) Mondelez International Inc (NASDAQ: MDLZ ), which makes Cadbury chocolate, Oreo cookies and Trident gum, said it added activist investor Nelson Peltz to its board. Peltz's Trian Fund Management is Mondelez's fourth-largest shareholder with 2.3 percent of its shares, according to Thomson Reuters data. The billionaire from Brooklyn had said last year that Mondelez could almost double its earnings per share by managing costs better. He had also said that the company should be acquired by PepsiCo, Inc. (NYSE: PEP ).