Katie Viggiani is a partner in the Litigation Department in Morrison & Foerster’s New York office.

Her practice focuses on investigations, white collar defense, and commercial litigation.  As part of her commercial litigation practice, Katie regularly represents U.S. and international clients in actions involving federal securities laws, escrow disputes, and class actions across a variety of industries, including consumer goods, technology, healthcare, and financial services.  Katie advises clients from pre-litigation strategy through trial and settlement negotiations.

Katie also has extensive experience in white-collar defense and regulatory matters. She has represented clients facing regulatory investigations and enforcement actions involving securities fraud, benchmark manipulation, market manipulation, tax evasion, and accounting brought by the U.S. Department of Justice (DOJ), Securities and Exchange Commission (SEC), Commodity Futures Trading Commission (CFTC), and the Financial Industry Regulatory Authority (FINRA). Katie also was part of a trial team that represented the founder and former CEO of a high-tech company in a criminal prosecution alleging stock option backdating and improper revenue recognition. The team achieved two separate criminal trial victories, obtaining acquittal on six counts and a hung jury on the one remaining count.

Katie maintains an active pro bono practice with a particular focus on indigent criminal defense, civil rights work, and legal issues facing the LGBTQ+ community. She was a founding member of the firm’s NY LGBTQ Affinity Group, and is an active member of the firm’s Women’s Strategy Committee.

Katie earned her J.D. in 2009 from the UCLA School of Law, where she was a managing editor of the UCLA Women’s Law Journal. While in law school, Katie worked as a law clerk for the Los Angeles County Public Defender and was a member of UCLA’s Criminal Defense Clinic.

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