U.S. Securities and Exchange Commission Chairman Mary Schapiro said she will step down next month, the SEC announced Monday.

“It has been an incredibly rewarding experience to work with so many dedicated SEC staff who strive every day to protect investors and ensure our markets operate with integrity,” Schapiro said, in a statement. “Over the past four years we have brought a record number of enforcement actions, engaged in one of the busiest rulemaking periods, and gained greater authority from Congress to better fulfill our mission.”

Details to follow.