A former Nixon Peabody lawyer was charged with insider trading in D.C. federal court in a lawsuit filed last week.

The Thursday complaint, filed by the Securities and Exchange Commission in the U.S. District Court for the District of Columbia, alleges that Melissa Mahler, now a solo practitioner in New York, used information about a pending merger given to her by a client in 2004 to make an illegal profit when the deal was finalized.