Martha Stewart ImClone Insider Trading (2001-2004)
Lifestyle mogul Martha Stewart sold 3,928 shares of ImClone Systems stock on December 27, 2001, one day before the FDA announced it would not review the company's cancer drug application. She avoided approximately $45,000 in losses. Federal prosecutors charged her with securities fraud, obstruction of justice, and conspiracy.
Stewart was convicted in March 2004 and served five months in federal prison plus five months of home confinement.
The case became the defining example of celebrity insider trading prosecution, demonstrating that even relatively small profits ($45,000) could result in criminal conviction when material nonpublic information was involved.
The Israeli defendants allegedly made $150,000—more than three times Stewart's avoided losses—using classified military intelligence. The comparison illustrates how prediction markets have created new avenues for insider trading that existing securities law was not designed to address.
