HARTFORD, Conn. AP – A former executive of insurance heavyweight American International Group Inc. was sentenced to four years in prison Tuesday in a fraud case that authorities say cost shareholders more than $500 million.

Christian Milton of Wynnewood, Pa., declined to comment during a hearing in U.S. District Court in Hartford. He was ordered to report to the federal Bureau of Prisons on March 25, and his lawyers said they were preparing an appeal.