Securities and Exchange Commission Chairman Mary Schapiro announced Monday her plans to resign her position effective Dec. 14.

Appointed by President Obama in January 2009, Chairman Schapiro began her four years in office in the middle of the financial crisis.

This announcement comes months after Chairman Schapiro announced she was considering resignation after a recent illness in September.

“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,” said Chairman Schapiro. “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.” 

During her tenure, Chairman Schapiro shaped the agency, making it more capable to identify wrongdoers and addressing complaints from outsiders, ultimately improving the way it inspects financial firms. 

Before her current role, Chairman Schapiro worked as commissioner at the SEC from 1988 to 1994. Chairman Schapiro is the only person to serve chairman of both the SEC and CFTC.