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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 focuses on 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.
Colleen Bal
Partner
Colleen is a nationally recognized trial lawyer with a proven track record of handling difficult and high-profile cases for leading technology, life sciences, and financial companies.
Services (114)
Insights (4911)
News Articles
8.20.26
Ariel Green Anaba Named to Daily Journal's 2026 "Top 40 Under 40"
Wilson Sonsini litigation partner Ariel Green Anaba has been named to Daily Journal's 2026 "Top 40 Under 40," recognizing California's leading litigators under age 40.
News Articles
8.20.26
Five Wilson Sonsini Attorneys Named 2027 “Lawyer of the Year” Honorees by Best Lawyers
Five Wilson Sonsini attorneys have been named 2027 “Lawyer of the Year” honorees by The Best Lawyers in America®, one of the publication’s highest peer-reviewed distinctions. The honors span five practice areas and three markets and recognize Caz Hashemi, Martin W. Korman, Martin J. Waters, Patrick J. Schultheis, and Craig E. Sherman.
Alerts
8.20.26
U.S. Commerce Department Streamlines Drone Export Controls
Late last week, the U.S. Commerce Department’s Bureau of Industry and Security (BIS) issued its long-anticipated rule to streamline export controls applicable to commercial and dual-use unmanned aerial vehicles (UAVs): Streamlining Export Controls for Drone Exports, 91 Fed. Reg. 52,501 (Aug. 14, 2026) (the Rule). While the Rule loosens controls on many commercial UAVs with lower endurance, the Rule also enhances controls in a few key areas.
Client Highlights
8.20.26
Wilson Sonsini Advises Highspot on Merger with Seismic
On August 18, 2026, Seismic, an AI-powered sales and revenue enablement platform, announced the completion of its merger with Highspot. Following a second request review, the merger obtained U.S. antitrust clearance, which allowed the transaction to close without any action by the Department of Justice Antitrust Division. The combined company will operate under the Seismic name and be led by Seismic Chief Executive Officer Rob Tarkoff. Wilson Sonsini Goodrich & Rosati advised Highspot on the transaction.
Press Releases
8.20.26
Wilson Sonsini Welcomes Former Couchbase Chief Legal Officer Margaret Chow to General Counsel in Residence Program
Contact:
Kimberly Brooks
212-453-2881
kbrooks@wsgr.com
Kimberly Brooks
212-453-2881
kbrooks@wsgr.com
News Articles
8.19.26
Doyle’s Guide Recognizes Jocelyn Chow as Leading Competition & Antitrust Lawyer
Wilson Sonsini partner Jocelyn Chow has been recognized by Doyle’s Guide in its “Leading Competition & Antitrust Lawyers – Hong Kong 2026” list as a Leading practitioner. Doyle’s Guide is an independent legal rankings publication covering major Asia-Pacific and international markets. Its rankings are based on independent research, including peer-review surveys and interviews with clients, peers, and relevant industry bodies, with Leading practitioners recognized for consistently drawing praise from clients and peers.
Alerts
8.18.26
CalPrivacy Authorizes Rulemaking on Opt-Out Signals, Raises Data Broker Fees, and Starts the Clock on DROP Amendment Comment Period
At its August 6–7, 2026, board meetings, the California Privacy Protection Agency (CalPrivacy) Board directed staff to prepare formal rulemaking to name Global Privacy Control (GPC) in the California Consumer Privacy Act (CCPA) regulations and tighten how opt-out preference signals must be honored. It also advanced separate rulemaking on data broker deletion audits and Delete Request and Opt-out Platform (DROP) rule amendments. Finally, the Board raised annual data broker registration and DROP access fees from $6,000 to $9,500 for 2027 and previewed its audit program.
Alerts
8.18.26
CMS Proposes Changes to Incentivize FHIR-enabled Electronic Prior Authorization Use
On July 14, 2026, the Centers for Medicare & Medicaid Services (CMS) announced the CY 2027 Physician Fee Schedule (PFS) proposed rule. The proposed rule includes modifications to further incentivize the use of electronic prior authorization in Medicare Ambulatory Specialty Models (ASMs) and the Merit-based Incentive Payment System (MIPS) by health care providers. This builds on prior CMS regulations related to prior authorization which imposed requirements on certain health plans, but not on health care providers (see 2024 CMS Interoperability and Prior Authorization final rule). These changes are not “PFS” in the technical sense of altering relative value unit (RVU) or conversion-factor payment calculations, but rather are Quality Payment Program (QPP) and Center for Medicare and Medicaid Innovation (CMMI) policy changes that are included in the same omnibus annual rulemaking package. For CMS’s proposed PFS and Hospital Outpatient Prospective Payment System (OPPS) payment changes, see our previous client alert, “Health Reimbursement Signals: CMS Proposes Payment Frameworks for ‘Software as a Medical Service.’”1
News Articles
8.18.26
In Memoriam: Wilson Sonsini Remembers Maya Skubatch
The firm is saddened to share that longtime Wilson Sonsini partner Maya Skubatch recently passed away following a courageous battle with blue nevus melanoma, an extremely rare form of cancer. She is survived by her husband, Amit Litsur, their three teenage children, and her parents, among many others. We offer our deepest condolences to her family, friends, and colleagues.Events (1846)
Speaking Engagements
12.08.26
PLI's Tax Strategies for Corporate Acquisitions, Dispositions, Spin-Offs, Joint Ventures, Financings, Reorganizations & Restructurings 2026
Practising Law Institute (PLI) features specialized sessions on tax strategies for financially troubled businesses within its premier annual conference series on Tax Strategies for Corporate Acquisitions, Dispositions, Spin-Offs, Joint Ventures, Financings, Reorganizations & Restructurings. These programs focus on navigating net operating losses (NOLs), debt restructurings, and corporate distress under complex federal tax rules.
Affiliated Programs
12.03.26
Demystifying Biopharma Business Development: Understanding the Process and Thriving as a BD Professional
This full-day workshop will be taught by accomplished business development (BD) professionals with deep experience in both large pharmas and small biotechs, providing perspectives from both sides of the table for biopartnering. If you have ever wondered what BD is, how to work efficiently and effectively with your BD team to advance your company’s strategy and programs, or even how to become a BD professional yourself, this is a good workshop for you (and your colleagues in R&D, regulatory, legal, finance, and even executive positions) to attend. The workshop will include presentations, case studies, and group exercises, and conclude with a panel discussion.
Affiliated Programs
11.02.26
The 42nd Annual TEI-SJSU High Tech Tax Institute
Wilson Sonsini is proud to sponsor the annual TEI-SJSU High Tech Tax Institute, a two-day conference held every November. The 42nd Annual Institute offers a deep dive into key tax topics relevant to high tech companies. This in-person event is designed for tax pros from corporate tax departments, CPA and law firms, the IRS, and state tax agencies who deal with high tech businesses. This year's topics include recent guidance and strategies related to significant technology M&A transactions and best M&A tax practices. Wilson Sonsini partner Myra Sutanto Shen will speak on the latest in M&A technology strategies, data centers, and more.
Affiliated Programs
10.21.26
Intellectual Property (IP) for Antibody and Related Therapeutics: Strategies, Best Practices and Case Studies
Antibody and related biologic therapeutics present unique intellectual property (IP) challenges throughout discovery, development, and commercialization. This online workshop will bring together IP attorneys and industry experts from Haynes Boone, Wilson Sonsini, Morgan Lewis, Morrison Foerster, and Amgen to discuss practical strategies, emerging legal issues, and real-world case studies. Attendees will gain insights into protecting innovation, managing IP risks, and navigating an evolving legal landscape shaped by advances in biologics and AI.
Affiliated Programs
10.20.26
East Coast NextGen VC Forum 2026
LaunchBio’s NextGen VC Forum is the premier event for venture capital professionals to deepen their knowledge of the life science and biotech sectors while building meaningful connections across the industry. The forum features expert led sessions that offer practical insights into evaluating, supporting, and scaling science-backed startups. Networking is built into the program to help participants expand their reach and grow their networks. Co-created with Wilson Sonsini, the half-day forum includes a networking lunch, three interactive one-hour sessions, and a closing happy hour.
Affiliated Programs
9.30.26
Asia Deals Shift with New Tech Powers
We would like to welcome you to a unique East-West book talk featuring two prominent writers in conversation. Authors Vince Cable (Eclipsing the West) and Rebecca Fannin (The New Tech Titans of China) will share their perspectives on India and China's rise and impact on the Western World in technology, economic growth and policy. Wilson Sonsini partner Daniel Glazer will provide introductory remarks.
Affiliated Programs
9.22.26
Licensing Executives Society - Silicon Valley Chapter: “Unlocking Patent Value: Modern Monetization Strategies for In-House Leaders”
Wilson Sonsini is pleased to support the Licensing Executives Society - Silicon Valley Chapter in hosting its panel “Unlocking Patent Value: Modern Monetization Strategies for In-House Leaders.”