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Stephanie Yonekura

Partner, Los Angeles

Stephanie Yonekura

Stephanie Yonekura is a partner in the Investigations, White Collar and Fraud practice group. Stephanie represents clients in white collar defense, internal investigations, and civil business litigation. Her practice focuses on securities and financial institution fraud, cybercrime, and national security matters.

Prior to joining Hogan Lovells, Stephanie was the Acting United States Attorney for the Central District of California (CDCA), the largest U.S. Attorney's office (USAO) outside of Washington, D.C. She served on national committees for white collar fraud, cybercrime and intellectual property, and border and immigration and was the founder and chairwoman of the office's first Diversity Committee to highlight diversity, to assess the diversity needs of the office, and to reach out to minority groups at law schools and bar organizations to educate them about the mission of the U.S. Attorney's Office.

As the head Federal Law Enforcement Officer for the USAO CDCA, Stephanie prosecuted several high-impact securities fraud cases that reached record multi-billion dollar settlements involving financial institutions, prominent Southern California CEOs, and a still-pending case against a former Major League Baseball player. She regularly oversaw casework addressing significant questions, such as the implications of the Second Circuit’s decision in United States v. Newman, the scope of an insider trading scheme, and complex issues of conflicts of interest. Under Stephanie’s leadership, the office investigated the hacking of one of the world’s largest entertainment companies reportedly by a foreign government.

Before her time as the acting United States Attorney, Stephanie served as the First Assistant United States Attorney for the CDCA, the second highest position in the office, exercising direct oversight of criminal cases involving securities fraud, financial institution fraud, public corruption, and civil rights violations and civil cases involving the False Claims Act and the Financial Institution Reform, Recovery, and Enforcement Act (FIRREA).

Prior to joining the USAO, Stephanie was a Special Assistant United States Attorney for the Department of Housing and Urban Development, prosecuting mortgage fraud. She also clerked for United States District Judge A. Howard Matz in the Central District of California. Before serving over 15 years in public service, Stephanie worked at another global law firm, where she practiced both white collar defense and civil litigation and represented large corporate clients such as Price Waterhouse, Dole Foods, and the Jet Propulsion Laboratory.