The U.S. Securities and Exchange Commission on Tuesday announced that Monique Winkler, who joined the agency's San Francisco regional office in 2008 as a staff attorney, has been named the associate regional director for enforcement in the office.

Winkler, whose resume includes work as an associate on both the plaintiffs' and defense side of the private securities bar, succeeds former office enforcement chief Erin Schneider, who was tapped to lead the San Francisco SEC office as regional director in May. Winkler has served the office as assistant regional director since 2015.

Cases that Winkler has supervised or investigated during her tenure at the office include fraud allegations against Theranos and its founder, Elizabeth Holmes, and President Ramesh "Sunny" Balwani and a fraud investigation of San Francisco-based investment advisory company LendingClub Asset Management, its founder and a former executive that netted a $4.27 million settlement last year.

"Monique will be an outstanding leader for the office's enforcement program," said Schneider in a press release announcing the move. "Throughout her tenure at the Commission, she consistently has demonstrated her ability to think creatively, make sound judgments, and solve difficult issues."

Winkler holds a bachelor's degree in psychology from Indiana University, and graduated from Vanderbilt University School of Law in 1996. According to her LinkedIn bio, Winkler served stints as an associate earlier in her career at private firms, including Wilson Sonsini Goodrich & Rosati and Coughlin Stoia Geller Rudman & Robbins, the plaintiff-side securities firm now known as Robbins Geller Rudman & Dowd.

"I am honored to have the opportunity to serve as Associate Director," Winkler said in the release announcing the move. "I look forward to continuing to work with the exceptionally talented and dedicated enforcement staff in San Francisco to protect investors and prosecute violations of the securities laws."