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Andrew D. Hoffman
Partner
Corporate
Palo Alto
San Francisco
ahoffman@wsgr.com

D650-849-3240

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  • Broad Capital Markets Experience

    Andy's expertise includes IPOs and follow-on and secondary equity offerings; investment-grade, high-yield, and convertible debt offerings; and PIPE transactions.

  • Represents Companies Through All Development Stages

    Andy represents emerging companies at all stages of development, advises entrepreneurs on day-to-day legal matters, and represents clients in strategic transactions and liquidity events.

  • Thought Leadership

    Andy often speaks on matters related to capital markets transactions, SEC disclosure requirements, and corporate governance matters.

Andrew Hoffman is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati. His practice focuses on corporate and securities work for both public and private companies across all stages of growth, as well as for financial institutions, venture capital firms, and other investors. Andy has represented clients across a wide range of industries, including software, semiconductors, life sciences, energy, financial services, manufacturing, retail, and telecommunications. He advises emerging companies at all stages of maturity, including formation, initial funding, expansion, strategic investments, and exit. Andy works with public and private companies on a range of transactions, including financings, initial public offerings, and mergers and acquisitions. He also counsels clients on matters such as general corporate law, fiduciary duties, and governance and public company disclosure, as well as reporting with the U.S. Securities and Exchange Commission.

Andy's broad capital markets experience includes initial public, follow-on, and secondary equity offerings; investment-grade, high-yield, and convertible debt offerings; and private investment in public equity (PIPE) transactions. He advises a number of public companies with respect to corporate governance, exchange-listing standards, SEC compliance and disclosure requirements, and other complex corporate and securities law matters, and frequently represents investment banks in their underwriting transactions. In addition, Andy is a regular speaker on matters related to capital markets transactions, SEC disclosure requirements, and corporate governance matters.

Experience

Andrew Hoffman is a partner in the Palo Alto office of Wilson Sonsini Goodrich & Rosati. His practice focuses on corporate and securities work for both public and private companies across all stages of growth, as well as for financial institutions, venture capital firms, and other investors. Andy has represented clients across a wide range of industries, including software, semiconductors, life sciences, energy, financial services, manufacturing, retail, and telecommunications. He advises emerging companies at all stages of maturity, including formation, initial funding, expansion, strategic investments, and exit. Andy works with public and private companies on a range of transactions, including financings, initial public offerings, and mergers and acquisitions. He also counsels clients on matters such as general corporate law, fiduciary duties, and governance and public company disclosure, as well as reporting with the U.S. Securities and Exchange Commission.

Andy's broad capital markets experience includes initial public, follow-on, and secondary equity offerings; investment-grade, high-yield, and convertible debt offerings; and private investment in public equity (PIPE) transactions. He advises a number of public companies with respect to corporate governance, exchange-listing standards, SEC compliance and disclosure requirements, and other complex corporate and securities law matters, and frequently represents investment banks in their underwriting transactions. In addition, Andy is a regular speaker on matters related to capital markets transactions, SEC disclosure requirements, and corporate governance matters.

Education
  • J.D., University of Michigan Law School, 2003
  • B.A., Government and English, Georgetown University, 2000Cum Laude
Associations and Memberships
  • Member, Business Law Section of the State Bar of California
  • Affiliate Attorney, University of Michigan Law School's Entrepreneurship Clinic (2012-2013)
Honors
  • Named to the 2013-2018 "Rising Stars" lists published by Northern California Super Lawyers
Admissions
  • State Bar of California
Credentials
Education
  • J.D., University of Michigan Law School, 2003
  • B.A., Government and English, Georgetown University, 2000Cum Laude
Associations and Memberships
  • Member, Business Law Section of the State Bar of California
  • Affiliate Attorney, University of Michigan Law School's Entrepreneurship Clinic (2012-2013)
Honors
  • Named to the 2013-2018 "Rising Stars" lists published by Northern California Super Lawyers
Admissions
  • State Bar of California

Select Representations

  • Representation of issuers in numerous public offerings, including Amphastar Pharmaceuticals, Apigee, Arista Networks, Barracuda Networks, ESS Tech, Ekso Bionics, Elastic, Livongo, Nutanix, Pacific Biosciences of California, Pulse Biosciences, ProSomnus, Spark I, SVB Financial Group, and Talend
  • Representation of underwriters such as BofA Securities, Goldman Sachs, Jefferies, J.P. Morgan, KeyBank, Morgan Stanley, and Piper Jaffray in numerous public offerings
  • Corporate, securities, and governance representation of numerous public companies, including Amphastar Pharmaceuticals, Arista Networks, AXT, Elastic, Pacific Biosciences of California, Pulse Biosciences, ProSomnus, Quantumscape, and Talend
  • Corporate, securities, and governance representation of a wide variety of private companies ranging from seed-stage start-ups to late-stage enterprises
  • Representation of venture capital and private equity investors, including Balderton, Boxer Capital,  Catchlight Capital, Francisco Partners, Institutional Venture Partners, Tau Capital, and Wittington Ventures
  • Acquisitions, dispositions, and other strategic transactions by numerous public and private companies, including Amphastar Pharmaceuticals, Barracuda Networks, Boardvantage, Exact Science, Pacific Biosciences of California, ProSomnus, Salesforce, and Talend
Matters

Select Representations

  • Representation of issuers in numerous public offerings, including Amphastar Pharmaceuticals, Apigee, Arista Networks, Barracuda Networks, ESS Tech, Ekso Bionics, Elastic, Livongo, Nutanix, Pacific Biosciences of California, Pulse Biosciences, ProSomnus, Spark I, SVB Financial Group, and Talend
  • Representation of underwriters such as BofA Securities, Goldman Sachs, Jefferies, J.P. Morgan, KeyBank, Morgan Stanley, and Piper Jaffray in numerous public offerings
  • Corporate, securities, and governance representation of numerous public companies, including Amphastar Pharmaceuticals, Arista Networks, AXT, Elastic, Pacific Biosciences of California, Pulse Biosciences, ProSomnus, Quantumscape, and Talend
  • Corporate, securities, and governance representation of a wide variety of private companies ranging from seed-stage start-ups to late-stage enterprises
  • Representation of venture capital and private equity investors, including Balderton, Boxer Capital,  Catchlight Capital, Francisco Partners, Institutional Venture Partners, Tau Capital, and Wittington Ventures
  • Acquisitions, dispositions, and other strategic transactions by numerous public and private companies, including Amphastar Pharmaceuticals, Barracuda Networks, Boardvantage, Exact Science, Pacific Biosciences of California, ProSomnus, Salesforce, and Talend

Select Publications

  • Co-author with S. Bochner and M. Rick, IPO Guide, Toppan Merrill, Ninth Edition, 2019
Insights

Select Publications

  • Co-author with S. Bochner and M. Rick, IPO Guide, Toppan Merrill, Ninth Edition, 2019
Focus Areas
  • Biotech
  • Capital Markets
  • Clean Energy
  • Climate and Clean Technologies
  • Communications and Networking
  • Consumer Products and Services
  • Corporate
  • Corporate Governance
  • Corporate Life Sciences
  • Data Storage and Cloud
  • Emerging Companies and Venture Capital
  • Fintech
  • Global Generics
  • Internet
  • Life Sciences
  • Medical Devices
  • Mergers & Acquisitions
  • Mobile Devices
  • Mobility
  • Public Company Representation
  • Semiconductors
  • Software
  • Special Purpose Acquisition Companies (SPACs)
Recent Insights
Client Highlights
Wilson Sonsini Advises PacBio on Sale of Short-Read DNA Sequencing Assets
On February 2, 2026, PacBio, a leading developer of high-quality, highly accurate sequencing solutions, announced the completion of the sale of select intellectual property and other assets related to PacBio’s short-read DNA sequencing technology and related clustering, sequencing reagent, and detection technologies to Illumina, Inc. PacBio received approximately $50 million in cash proceeds from the transaction. Wilson Sonsini Goodrich & Rosati advised PacBio on the transaction.
Learn More
Client Highlights
Firm Advises Culture Biosciences on Series C Financing Round
On December 16, 2025, Culture Biosciences, a leader in cloud-based biomanufacturing, announced the successful close of its Series C fundraising round led by existing investors including Northpond Ventures, Synthesis Capital, S32, and Cultivian Sandbox, reflecting strong conviction among current shareholders in Culture’s trajectory and long-term strategy. Wilson Sonsini Goodrich & Rosati advised Culture on the transaction.

The Series C financing will accelerate the commercial expansion of Culture’s next-generation hardware product, the Stratyx 250, as well as fuel continued development of the company’s AI-powered Console software ecosystem. The Stratyx 250 system is engineered to provide scalable, automated, and digitally connected bioprocess capacity designed for modern biologics, cell therapy, and advanced bioprocess development needs. In parallel, Culture will expand the AI-enabled capabilities of its Console software platform, including advanced data integration, predictive modeling, and automated analysis tools intended to streamline development cycles and enhance process decision-making for customers. 

The Wilson Sonsini team that advised Culture on the financing included Andrew Hoffman, Terence Desouza, Utsav Lall, Kate Kirkpatrick, Michael Murrietta, and Casey Hepburn.
Learn More
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