SEC Commissioner Kara Stein Kara Stein, former SEC Commissioner.

Former SEC Commissioner Kara Stein has joined the board of the Investors Exchange, LLC, the trading platform operator featured in Michael Lewis’s book “Flash Boys.”

“Kara’s track record at the SEC speaks to her commitment to building a strong, resilient capital markets ecosystem that puts the interests of investors and the public first,” said IEX CEO and Co-Founder Brad Katsuyama, in a statement.

IEX Group is the holding company of Investors Exchange.

Katsuyama stated that “between the SEC Transaction Fee Pilot and the increased transparency around the costs exchanges pose on market participants, the industry is at a turning point. Kara’s experience and insight will be invaluable in this period of positive momentum toward meaningful change that benefits investors, issuers, and brokers.”

Stein added in the statement that she looks forward “to helping IEX continue to improve market transparency for both public companies and investors. I am excited about the company’s mission of developing cutting-edge technologies to enhance and create new standards of performance in the marketplace.”

Since leaving the SEC in January, Stein has joined the University of Pennsylvania School of Law as a Distinguished Policy Fellow and the Center on Innovation at the University of California Hastings School of Law as a Senior Research Fellow.