UPDATE 1-U.S. judge throws out insider trading guilty pleas over IBM deal
January 22, 2015 at 18:16 PM EST
NEW YORK, Jan 22 (Reuters) - A U.S. judge on Thursday threw out the guilty pleas of four men accused of illegally dealing in shares ahead of an IBM Corp acquisition, the first decision in response to a landmark appellate ruling curtailing prosecutors' ability to bring certain insider trading cases.