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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.
Josephine Aiello LeBeau
Partner
Josephine focuses on matters related to compliance and enforcement of U.S. export control and sanctions.
Ali R. Alemozafar
Partner
Ali counsels clients on patent strategy, prosecution, and diligence for financings, M&A, and IPOs.
Lester Ang
Partner
Lester Ang is a corporate and securities partner in the Palo Alto office of Wilson Sonsini, where he works with private and public technology and life sciences companies through all stages of their growth, as well as with venture capital firms and private equity firms.
Brian Appel
Partner
Brian Appel is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati, where he practices corporate and securities law. He advises companies on general corporate matters, including formation and operation, corporate governance, debt and equity financings, mergers and acquisitions, and securities-related matters. He has assisted early-stage companies in numerous capital-raising transactions, including venture capital financings.
Matthew A. Argenti
Partner
Matt is an experienced patent litigatior with an focus on post-grant review proceedings before the PTAB.
Hin Au
Partner
Hin Au is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati, where he is a member of the patents and innovations practice. Hin provides IP strategy and counseling services to clients in a wide range of technical fields, including MedTech, digital health, biotech, medical/diagnostic devices, software, robotics, autonomous vehicle technologies, and clean energy. He has assisted many clients with building their patent portfolios and securing key strategic patents. Hin has hands-on engineering industry experience, having previously worked as an R&D engineer for six years at large U.S. semiconductor corporations. A native of Singapore, Hin is also fluent in Mandarin and Cantonese.
Christine K. Au-Yeung
Partner
Christine Au-Yeung is a partner in the San Francisco and Palo Alto offices of Wilson Sonsini Goodrich & Rosati, where she specializes in trademark, copyright, and advertising law. She counsels clients on all aspects of brand protection in the U.S. and throughout the world, including clearance and selection of trademarks, prosecution of trademark applications, licensing, and the resolution of trademark infringement and domain name disputes. She also advises clients on advertising issues, including TCPA compliance related to marketing calls and texts as well as strategies on promotions such as sweepstakes and contests.
Megan J. Baier
Partner
Megan represents technology and life sciences clients in corporate transactional matters.
Services (114)
Insights (4799)
News Articles
6.22.26
Bloomberg Law Quotes Matt Christiansen on Rising Energy Demands and FERC Jurisdiction
The Federal Energy Regulatory Commission (FERC) and PJM Interconnection LLC, a regional transmission organization regulated by the FERC, are facing a host of issues related to rising energy demand driven by the interconnection of new data centers to the power grid. Wilson Sonsini attorney and former FERC general counsel Matt Christiansen was quoted in Bloomberg Law's recent article "PJM Tackling Data Center Demand Requires Federal, State Juggling," analyzing the jurisdictional challenges posed by these proceedings involving FERC and PJM.
Client Highlights
6.22.26
Firm Advises Denali Therapeutics on Agreement to Sell Rare Pediatric Disease Priority Review Voucher for $195 Million
On June 18, 2026, Denali Therapeutics, a biotechnology company pioneering a new class of biotherapeutics designed to cross the blood-brain barrier using its proprietary TransportVehicle™ platform, announced it has entered into a definitive agreement to sell its Rare Pediatric Disease Priority Review Voucher (PRV) for gross proceeds of $195 million. Wilson Sonsini Goodrich & Rosati advised Denali on the transaction.
Bylined Articles
6.22.26
Wilson Sonsini Partners Co-Author Chapter in Third Edition of GCR Data & Antitrust Guide
Wilson Sonsini partners Cédric Burton, Deirdre Carroll, and Maneesha Mithal, along with associates Michelle Zang and Hattie Watson, and Gil Zhang and Michael Han of Fangda Partners, have co-authored a chapter in the third edition of the GCR Data & Antitrust Guide examining the accelerating convergence of data protection, competition, artificial intelligence (AI), and cybersecurity regulation across major jurisdictions. The chapter, “Regulators Target AI as Evolving Technology Threatens Fair Competition in the Digital Economy,” highlights a widespread recognition that traditional privacy and antitrust frameworks are increasingly insufficient on their own to address data-driven market power and AI-enabled competition concerns. In response, regulators are adopting a wide range of approaches, from sector-specific and self-regulatory models to highly prescriptive ex ante regimes.
Client Highlights
6.18.26
Wilson Sonsini Advises Clair Health on $11.6 Million Seed Round
On June 17, 2026, San Francisco-based Clair Health, a wellness wearable start-up designed to monitor hormones, announced an $11.6 million seed round led by Khosla Ventures, with participation from a16z speedrun, Brydge Club, TreeHub, Cartan Capital, AGI House, Insiders VC, and Anne Wojcicki. Wilson Sonsini Goodrich & Rosati advised Clair Health on the transaction.
Client Highlights
6.18.26
Wilson Sonsini Advises SandboxAQ on Agreement with the U.S. Department of Commerce for $500 Million CHIPS R&D Award
On June 17, 2026, SandboxAQ announced a definitive agreement with the U.S. Department of Commerce's CHIPS Research and Development Office for a $500 million award to address one of the most urgent challenges in American manufacturing: the foreign control of critical materials and chemistries that are essential to semiconductor manufacturing. Wilson Sonsini Goodrich & Rosati advised SandboxAQ on the transaction.
News Articles
6.18.26
Wilson Sonsini Attorneys Named to Lawdragon’s 2026 500 Leading Global IP Lawyers Guide
On June 18, 2026, Lawdragon published the 2026 edition of its 500 Leading Global IP Lawyers guide, recognizing the leading attorneys that are protecting innovation, defending brand integrity, and leveraging the assets at the heart of their clients' businesses. Wilson Sonsini partners Wendy Devine, Jordan Jaffe, David Kramer, and James Yoon have been named to the 2026 guide.
Alerts
6.17.26
Delaware Court of Chancery Interprets New Section 144 and Applies Heightened Presumption of Director Independence
On June 15, 2026, the Delaware Court of Chancery issued an Opinion interpreting Section 144 of the Delaware General Corporation Law (the DGCL), the landmark statutory measure adopted last year to provide safe harbors for certain conflicted transactions and address director independence, among other reforms.1 The Opinion arose in a common context in Delaware stockholder litigation: claims over director and management compensation. In the decision, Vice Chancellor Lori W. Will applied, for the first time, the statute’s heightened presumption of independence for directors of public companies determined by the board to be independent under the relevant NYSE or Nasdaq listing standards to dismiss derivative claims on demand futility grounds.
Alerts
6.17.26
Key U.S. Import Developments, June 2026
With new and novel tariffs yielding to court decisions rendering those tariffs unlawful (only to be replaced with newer tariffs—and more litigation about the newer tariffs), and with the Section 122 temporary import surcharge of 10 percent nearing expiration in a matter of weeks, businesses have faced extraordinary uncertainty in navigating trade policy.
Events (1809)
Affiliated Programs
7.09.26
NASDAQ International Go-To-Market Bootcamp 2026
Wilson Sonsini invites you to the third Bootcamp co-hosted by the Nasdaq Entrepreneurial Center and KPMG. Executive Advisor Ken Siegel and industry leaders will share practical guidance and proven strategies for navigating global markets.
WSGR Events
6.29.26
Coming to America Series: Hiring and Scaling a US Team: What U.K. Companies Need to Know When Expanding
Wilson Sonsini is pleased to invite you to a panel discussion in London designed specifically for UK-based companies planning to expand operations into the U.S. This session will provide a practical overview of the key operational, strategic, and legal considerations when hiring employees in the U.S. This workshop is ideal for founders, HR leaders, legal teams, and executives responsible for U.S. expansion strategy.
Speaking Engagements
6.24.26
IAPP Navigate 2026
On June 24, Wilson Sonsini partner Maneesha Mithal will speak at the IAPP Navigate 2026 Digital Policy Leadership Summit on the panel, “The Billion Dollar Club: Responding to the Growing Wave of Privacy Enforcement.” Maneesha and her fellow panelists will examine the rise in state and federal privacy enforcement, the uptick in new privacy laws across the United States, and the enforcement priorities and strategies organizations should anticipate in the years ahead. To learn more or register, please visit the event website.
Affiliated Programs
6.23.26
Infocast Transmission & Interconnection Summit 2026
Join Wilson Sonsini at the Transmission & Interconnection Summit presented by Infocast in Washington D.C. June 23-25. On June 23, Matt Christiansen will moderate the panel "Developing new Large Load Interconnection Paradigms - Impacts of 'Speed to Power' and Other Initiatives on Flexibility, Cost Allocation, and Queue Management," and Sarah Greenberg will moderate the panel "Best Practices in Interconnection: Comparing Approaches of RTOs & Transmission Owners."