Search Results
Demian Ahn
Partner
Demian Ahn is a member of the firm’s data, privacy, and cybersecurity practice based in Washington, D.C. He leads the firm’s incident response practice and advises companies on compliance, regulatory, and crisis management matters relating to emerging technologies of all kinds.
Michael S. Casey
Partner
Mike Casey is a dual-qualified, Chambers-ranked (Band 1) partner in Wilson Sonsini Goodrich & Rosati’s London office. His practice focuses on advising clients on sanctions, export controls, anti-corruption, and anti-money laundering issues in investigations, counseling, and compliance matters. In addition, he regularly acts as a specialist in mergers, acquisitions, venture financings, lending arrangements, and other types of corporate transactions. He also frequently advises clients on the UK’s National Security and Investment Act and other foreign direct investment review regimes.
Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”
Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.
Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.
Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.
Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”
Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.
Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.
Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.
Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
Weiheng Chen
Partner
Weiheng leads Wilson Sonsini's Greater China practice and he focuses on capital markets, M&A, and private equity transactions.
Christopher Chiou
Partner
Chris Chiou is a litigation partner in the Los Angeles office of Wilson Sonsini Goodrich & Rosati. He represents clients in high-stakes complex commercial litigation and investigations, with an emphasis on business disputes. Chris is experienced in all stages of litigation, from counseling clients before lawsuits are filed through trying cases before juries. He also leads internal investigations on behalf of corporations and advises them on compliance issues, including providing Foreign Corrupt Practices Act training to executives at multinational companies. Chris is certified by the International Association of Privacy Professionals in information privacy and data protection.
Before joining the firm, Chris served as Acting U.S. Attorney for the District of Nevada. As the district’s chief federal law enforcement officer, he oversaw criminal and civil cases brought on behalf of the United States, including financial litigation cases, and prosecuted cybercrime (particularly ransomware and business email compromise), white collar crime, and public corruption. In 2021, Chris served on a nationwide task force to determine how the U.S. Department of Justice can more effectively combat hate crimes and hate incidents.
Chris was previously a partner at Jenner & Block, where he helped start the Los Angeles office in 2009.
Before joining the firm, Chris served as Acting U.S. Attorney for the District of Nevada. As the district’s chief federal law enforcement officer, he oversaw criminal and civil cases brought on behalf of the United States, including financial litigation cases, and prosecuted cybercrime (particularly ransomware and business email compromise), white collar crime, and public corruption. In 2021, Chris served on a nationwide task force to determine how the U.S. Department of Justice can more effectively combat hate crimes and hate incidents.
Chris was previously a partner at Jenner & Block, where he helped start the Los Angeles office in 2009.
Leo Cunningham
Partner
Leo is a former federal prosecutor who represents clients in sensitive litigation matters, including federal and state court trials.
Moe Fodeman
Partner
Moe is an experienced attorney in white collar criminal defense, U.S. SEC enforcement defense, compliance and regulatory matters, and complex civil litigation.
Caz Hashemi
Partner
Caz is head of Wilson Sonsini’s litigation department and a member of the firm’s board of directors. He is nationally recognized as one of the top attorneys in his field of practice, regularly representing clients in high stakes securities litigation and government investigation matters.
Tarek J. Helou
Partner
Tarek represents companies in internal investigations and defends companies and individuals in significant and multi-jurisdictional government enforcement actions.
Luis Li
Partner
An accomplished trial lawyer and fellow of the American College of Trial Lawyers, Luis Li has led and played an integral role in numerous high-stakes, high-profile trials for a wide range of clients and has tried dozens of cases to verdict in state and federal courts across the country. He currently serves as the lead trial lawyer representing YouTube and Google in the first landmark bellwether case asserting claims against social media companies for the allegedly addictive design of their platforms. Luis is consistently recognized in the Chambers USA guide, where his clients have described him as “Spectacular in court with a limitless pool of skills – down to earth and can talk to a jury” and as a “Top trial lawyer - just outstanding on his feet in front of a jury in court.” His experience includes complex business litigation, corporate crisis management, internal investigations, white collar criminal defense, and international enforcement matters. Luis has represented a variety of leading companies and individuals across a range of industries, including technology, biotech, aerospace, media and entertainment, sports, oil and gas, social media, and cultural institutions. His background as a former assistant United States attorney has served to establish him as a trusted advisor for the most complex cases and sensitive internal corporate investigations.
Matthew Macdonald
Partner
Matthew Macdonald focuses on high-stakes litigation in federal and state courts across the country, with experience defending clients in cutting-edge disputes in technology, life sciences, intellectual property, and other areas.
Melissa Mills
Partner
Melissa Mills is a litigation partner in the Los Angeles and Washington, D.C., offices of Wilson Sonsini Goodrich & Rosati, where she is a member of the firm’s national team of trial lawyers known for its success in litigating cutting-edge disputes in technology, intellectual property, and other areas. She is a co-chair of the firm’s complex litigation practice and a member of the board of directors of the Wilson Sonsini Foundation.
Maneesha Mithal
Partner
Maneesha Mithal is a partner in the Washington, D.C., office of Wilson Sonsini and co-chair of the firm’s data, privacy, and cybersecurity practice. Maneesha advises clients on privacy, cybersecurity, and consumer protection matters and represents companies in regulatory investigations. She is also one of the founding members of Wilson Sonsini’s AI group.
Fred A. Rowley, Jr.
Partner
Fred A. Rowley, Jr. is a litigation partner based in the Los Angeles and Palo Alto offices of Wilson Sonsini Goodrich & Rosati. He handles appeals and complex litigation, and serves as co-chair of the firm’s nationwide Supreme Court and appellate practice.
Amy L. Simmerman
Partner
Amy is a leader of Wilson Sonsini’s Delaware office and governance practice.
Brent Snyder
Partner
Brent Snyder, head of the firm's regulatory and compliance department, brings more than 30 years of civil and criminal litigation and trial experience in both the private and public sectors. He is widely regarded as one of the world’s leading authorities on antitrust and competition enforcement in the area of antitrust cartels and related criminal violations. Brent has secured positive outcomes for leading companies and individual executives across industries in investigations by the U.S. Department of Justice (DOJ) and other antitrust enforcers, all while ensuring minimal business disruptions.
Prior to joining the firm, Brent served as chief executive officer of the Hong Kong Competition Commission (HKCC), where he had day-to-day responsibility for all aspects of its enforcement, policy, advocacy, and administration functions. Under his leadership, the HKCC set several important litigation precedents; significantly increased the volume, variety, and complexity of its enforcement work; improved its leniency and cooperation incentives; and enhanced its competition policy and advocacy work.
Prior to joining the firm, Brent served as chief executive officer of the Hong Kong Competition Commission (HKCC), where he had day-to-day responsibility for all aspects of its enforcement, policy, advocacy, and administration functions. Under his leadership, the HKCC set several important litigation precedents; significantly increased the volume, variety, and complexity of its enforcement work; improved its leniency and cooperation incentives; and enhanced its competition policy and advocacy work.