Andrew Ceresney, the U.S. Securities and Exchange Commission enforcement director, will leave the agency by the end of the year, the SEC said Thursday.

During Ceresney’s nearly four years as head of the agency’s largest division, the SEC filed more than 2,850 enforcement actions and obtained judgments and orders totaling more than $13.8 billion in monetary sanctions. The SEC also charged more than 3,300 companies and more than 2,700 individuals, including many CEOs, CFOs and other senior corporate officers.