Enron

Enron's 2001 collapse is the most infamous corporate scandal in US history. The Houston-based energy company disguised billions in debt through special purpose entities, inflating its stock price to $90 before the fraud unraveled. At its peak, Enron was the seventh-largest company in America with $111 billion in revenue. Its bankruptcy wiped out $74 billion in shareholder value and 20,000 employees lost their jobs and pensions. CEO Jeff Skilling was sentenced to 24 years in prison.