Biography
Gregg Marmaro is Counsel in the Los Angeles office of White & Case and a member of the Firm's Commercial Litigation and Global White Collar Practice Groups. Gregg is a former federal prosecutor with substantial litigation and trial experience and an extensive background in handling high-stakes civil and criminal matters.
From 2019 to 2025, Gregg served as an Assistant United States Attorney in the Criminal Division of the US Attorney's Office for the Central District of California. He served as lead or co-lead prosecutor in numerous jury and bench trials and also supervised dozens of grand jury investigations, many of which were transnational in scope. As a member of the Major Frauds Section, he prosecuted sophisticated financial crime matters, including a complex money laundering scheme targeting elderly victims, one of the largest fraud matters in the history of the Small Business Administration, and a securities fraud prosecution involving a parallel SEC enforcement action.
Earlier in his tenure as a prosecutor, Gregg investigated and prosecuted complex organized crime matters, international narcotics conspiracies, and violent crimes, including violations of the Racketeer Influenced and Corrupt Organizations (RICO) Act. His work at the Department of Justice earned him distinguished service awards and recognitions from federal law enforcement agencies, including the FBI, IRS-Criminal Investigations, Homeland Security Investigations, and the Bureau of Alcohol, Tobacco, Firearms and Explosives.
Before working as a federal prosecutor, Gregg practiced for four years at an international law firm in New York, where he represented clients in complex commercial litigation, white collar and regulatory matters, and internal investigations. He clerked for the Honorable Patty Shwartz on the US Court of Appeals for the Third Circuit.
Experience
Representative experience includes:
- Representing The Walt Disney Company in a federal securities action in the US District Court for the Central District of California arising out of Disney's streaming business.
- US v. Margaryan, et al., in which 18 defendants were charged with fraudulently obtaining more than $25 million in taxpayer-funded COVID-19 relief funds and federally-guaranteed small business loans.*
- US v. Verdzekov, et al., an international money laundering case in which three defendants were sentenced collectively to nearly 20 years in prison for targeting more than 100 elderly victims and causing over $10 million in losses.*
- US v. Waknine, in which a reputed Israeli mob figure was charged with scheming to extort the owner of a multi-million dollar high-stakes private poker business operating in Los Angeles.*
*Matter handled prior to joining White & Case.
Co-author, "The Disclosure Calculus: Navigating the Evolving DOJ Landscape on Voluntary Self-Disclosure", The Review of Securities & Commodities Regulation, July 2026
Co-author, "New nationwide self-disclosure policy cements DOJ’s efforts to encourage corporate cooperation," White & Case Client Alert, March 2026
Co-author, "SDNY's new self-disclosure program offers big changes rooted in DOJ's yearslong efforts to dangle carrots," White & Case Client Alert, March 2026
