Skip to content
Subscriber Only

Citadel Securities Hires Former SEC Official as General Counsel

  • Stephen Luparello to join Ken Griffin’s trading firm in May
  • Luparello formerly ran SEC Division of Trading and Markets

Citadel Securities appointed ex-Securities and Exchange Commission official Stephen Luparello as its general counsel, its latest hire plucked from the U.S. stock market’s top regulator.

Luparello, who was previously the SEC’s top official overseeing stock trading
and exchanges, will join billionaire Ken Griffin’s market-making firm in May, according to Citadel Securities spokesman Zia Ahmed. In his new role Luparello will be responsible for managing legal affairs for the firm and will report to Chief Legal Officer Shawn Fagan, according to Ahmed. Citadel Securities accounts for nearly one-fifth of all trading in the $26 trillion U.S. stock market and handles more than a third of volume placed by retail investors.