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.