A drug evaluator at the U.S. Food and Drug Administration's (FDA) Center for Drug Evaluation and Research for more than a decade, Cheng Yi Liang, 58, has been sentenced to five years in prison and three years of supervised release for using non-public FDA data to conduct illegal insider trading.

According to reports, Liang generated more than $3.7 million, which he is now being required to forfeit, by accessing confidential documents about new or experimental drugs to which he had access. He then used this information to time precisely when he would make the most profit from their stocks, as well as when to pull out of them to avoid losses.