Engineer accused of insider trading tied to Microsoft's reboot of Three Mile Island nuclear plant

A former Constellation Energy engineer has been accused of making $1.4 million from insider trading ahead of the company's announcement that it would restart a reactor at Three Mile Island to supply power to Microsoft. The Securities and Exchange Commission (SEC) and federal prosecutors allege in their lawsuits that Casey Muggleston purchased share options based on knowledge officially deemed material non-public information (MNPI). In September 2024, Microsoft and Constellation Energy – which ow