Activist investor targets Kraft

The Trian Fund Management, headed by Nelson Peltz, bought 12.2 mil shares, valued at $423 mil, in the maker of Oscar Mayer meats and other foods. Peltz often buys big stakes and then pushes for changes. Peltz has spurred shake-ups at Heinz (HNZ), Wendy's/Arby's and Cadbury Schweppes. In Feb., he disclosed an 8% stake in Family Dollar (FDO) and suggested a buyout. Kraft Foods (KFT) and Peltz were not immediately available for comment. Kraft rose 1%