Enron’s top management, eight women and four men in total, among whom chief executives Kenneth L. Lay and Jeffrey K. Skilling, were charged with fraud, conspiracy and insider trading. They received sentences between 5 and 10 years in prison for mark-to-market accounting practices which consisted of claiming that expected profits were real and inflating share values. The shares peaked at $90.75 before dramatically dropping to $0.26 in December 2001.