 Shares of Tyson Foods Inc. TSN, 1.43 fell 0.8 in premarket trading Monday, after the processed meats company reported fiscal fourth-quarter profit that missed expectation while sales rose above forecasts, as the inflationary environment weighed on margins. Net income for the quarter to Oct. 1 fell to 538 million, or 1.50 a share, from 1.36 billion, or 3.71 a share, in the year-ago period. 