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Katharine A. Martin
Partner
Corporate
Palo Alto

D650-565-3522

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  • Comprehensive Transactions and Governance Experience

    Katie has represented public and private company clients in all areas of corporate law, including mergers and acquisitions, governance, SEC compliance, '34 Act issues, public offerings, and private placements.

  • A Thought Leader on Corporate Law and Board Governance

    Katie has been a featured speaker on corporate and securities law, corporate governance, and M&A topics at programs held by PLI, Corporate Board Member, the SEC Institute, and other business organizations.

  • Recognized for Legal and Business Excellence

    Katie is often ranked among the top corporate attorneys in regional and national publications. For example, she was recognized among the Daily Journal's "Top Women Lawyers" in California in 2017, 2018, and 2019.

Katharine (Katie) Martin is a partner in Wilson Sonsini Goodrich & Rosati’s Palo Alto office, where she practices corporate and securities law. Katie previously served as chair of the firm’s board of directors, leader of the firm’s business law department, and member of the Policy Committee.

Katie has extensive experience in representing public companies. Her practice includes all aspects of company representation, including corporate governance, SEC compliance, 1934 Act issues, public offerings, private placements, and mergers and acquisitions. She also has represented underwriters in public offerings and issuers and investors in private equity financings.

Recognized in various editions of Chambers USA: America's Leading Lawyers for Business and Chambers Global, Katie described as “especially gifted at handling significant equity offerings, including IPOs, and private investments, on behalf of issuers, sponsors, and investment banks.”

Katie joined Wilson Sonsini Goodrich & Rosati in 1999, after 12 years at Pillsbury Madison & Sutro LLP, where she was a partner. She is a frequent speaker on corporate and securities law, corporate governance, and mergers and acquisition topics, presenting at such venues as PLI, Corporate Board Member, and the SEC Institute.

Experience

Katharine (Katie) Martin is a partner in Wilson Sonsini Goodrich & Rosati’s Palo Alto office, where she practices corporate and securities law. Katie previously served as chair of the firm’s board of directors, leader of the firm’s business law department, and member of the Policy Committee.

Katie has extensive experience in representing public companies. Her practice includes all aspects of company representation, including corporate governance, SEC compliance, 1934 Act issues, public offerings, private placements, and mergers and acquisitions. She also has represented underwriters in public offerings and issuers and investors in private equity financings.

Recognized in various editions of Chambers USA: America's Leading Lawyers for Business and Chambers Global, Katie described as “especially gifted at handling significant equity offerings, including IPOs, and private investments, on behalf of issuers, sponsors, and investment banks.”

Katie joined Wilson Sonsini Goodrich & Rosati in 1999, after 12 years at Pillsbury Madison & Sutro LLP, where she was a partner. She is a frequent speaker on corporate and securities law, corporate governance, and mergers and acquisition topics, presenting at such venues as PLI, Corporate Board Member, and the SEC Institute.

Focus Areas
Recent Insights
News Articles
Wilson Sonsini Practices, Attorneys Recognized in 2026 Chambers USA Guide
The 2026 Chambers USA guide has recognized Wilson Sonsini Goodrich & Rosati as a leading law firm in 44 geography-specific practice categories and named 87 Wilson Sonsini attorneys among the best in their fields. This year, the firm received four new practice area rankings, including in the nationwide National Security and Capital Markets: Convertible Debt categories, and three improved practice area rankings.
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Client Highlights
Firm Advises BlackLine on Agreement with Engaged Capital
On March 10, 2026, BlackLine announced that it entered into a cooperation agreement with Engaged Capital. Under this agreement, BlackLine appointed Storm Duncan and Megan Prichard to its board of directors, and Engaged Capital agreed to various restrictions on its activities at BlackLine. Wilson Sonsini Goodrich & Rosati advised BlackLine on the cooperation agreement.
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Recent Events
Affiliated Programs
29th Annual Stanford Directors’ College
Wilson Sonsini is proud to support the 29th Annual Directors’ College from June 24–26. This conference is the nation’s premier executive education program for directors and C-level executives of publicly traded firms. The program addresses a broad range of problems that confront modern boards, including the board’s role in setting business strategy, CEO and board succession, crisis management, techniques for controlling legal liability, challenges posed by activist investors, boardroom dynamics, international trade issues, the global economy, and cybersecurity threats.
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Speaking Engagements
26th Annual Stanford Directors’ College
Wilson Sonsini Goodrich & Rosati is proud to support the 26thAnnual Stanford Directors’ College from June 21st- 24th.  Directors’ College is the nation’s premier executive education program for directors and senior executives of publicly traded firms. The program addresses a broad range of problems that confront modern boards, including the board’s role in setting business strategy, CEO and board succession, crisis management, techniques for controlling legal liability, challenges posed by activist investors, boardroom dynamics, international trade issues, the global economy, and cybersecurity threats.
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