John Nath Kapoor (born 1942/1943) is an American felon, multi-millionaire, pharmaceutical entrepreneur, former CEO of Insys Therapeutics, and majority shareholder in the generic drug manufacturing company Akorn. In the fall of 2017, Kapoor was arrested and charged with numerous felony counts including RICO conspiracy, conspiracy to commit wire fraud, and other crimes. He was found guilty on all counts, and those convictions were upheld on appeal.